Three-phase regulation using single-phase controls utilizing peer-to-peer communication

Abstract

A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor of the first regulator control, the electronic processor in communication with the second regulator control and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first regulator control, the second regulator control, and the third regulator control based on a control algorithm of a plurality of control algorithms.

Description

Docket No. 214887-0016-W001THREE-PHASE REGULATION USING SINGLE-PHASE CONTROLS UTILIZING PEER-TO-PEER COMMUNICATIONRELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 685,135, filed August 20, 2024 and U.S. Provisional Patent Application No. 63 / 383,999, filed on December 20, 2024, the entire contents of which are hereby incorporated by reference.FIELD

[0002] Embodiments herein relate to phase line voltage regulators and control thereofSUMMARY

[0003] In some aspects, the techniques described herein relate to a control system for a multi-phase power system including a first phase line, a second phase line, and a third phase line, the control system including: a plurality of regulator controls including: a first regulator control configured to control a first tap changer associated with the first phase line: a second regulator control configured to control a second tap changer associated with the second phase line; a third regulator control configured to control a third tap changer associated with the third phase line; and a peer-to-peer communication link between the first regulator control, the second regulator control, and the third regulator control; the first regulator control including a first electronic processor configured to: determine a first set of data associated with the first phase line; receive, via the peer-to- peer communication link, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; select a control algorithm from a plurality of control algorithms; transmit, via the peer-to-peer communication link, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; and controlDocket No. 214887-0016-W001 the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data; the second regulator control including a second electronic processor configured to control the second tap changer based on the control signal; and the third regulator control including a third electronic processor configured to control the third tap changer based on the control signal.

[0004] In some aspects, the techniques described herein relate to a regulator control for a first tap changer of a first phase line of a multi-phase power system including the first phase line, a second phase line, and a third phase line, the regulator control including: a communication module configured to communicate with a second regulator control for a second tap changer of the second phase line and a third regulator control for a third tap changer of the third phase line via a peer-to-peer communication link; and an electronic processor electrically coupled to the communication module and configured to: determine a first set of data associated with the first phase line; receive, via the communication module, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; select a control algorithm from a plurality of control algorithms; transmit, via the communication module, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; and control the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data.

[0005] In some aspects, the techniques described herein relate to a regulator control for a first tap changer of a first phase line of a multi-phase power system including the first phase line, a second phase line, and a third phase line, the regulator control including: a communication module configured to communicate with a second regulator control for a second tap changer of the second phase line and a third regulator control for a third tap changer of the third phase line via a peer-to-peer communication link; and an electronic processor electrically coupled to the communication module and configured to: determine a first set of data associated with the first phase line; transmit, via theDocket No. 214887-0016-W001 communication module, the first set of data to one of the second regulator control and the third regulator control; receive, via the communication module, a control signal from the one of the second regulator control and the third regulator control; and control the first tap changer based on the control signal.

[0006] In some aspects, the techniques described herein relate to a method for multiphase regulation using single-phase control system for a multi-phase power system including a first phase line, a second phase line, and a third phase line, the single-phase control system including a first regulator control for a first tap changer of the first phase line, a second regulator control for a second tap changer of the second phase line, and a third regulator control for a third tap changer of the third phase line, the single-phase control system also including a peer-to-peer communication link between the first regulator control, the second regulator control, and the third regulator control, the method including: determining, at the first regulator control, a first set of data associated with the first phase line; receiving, at the first regulator control via the peer-to-peer communication link, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; selecting, at the first regulator control, a control algorithm from a plurality of control algorithms; transmitting, via the peer-to-peer communication link, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; controlling, using a first electronic processor of the first regulator control, the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data; controlling, using a second electronic processor of the second regulator control, the second tap changer based on the control signal; and controlling, using a third electronic processor of the third regulator control, the third tap changer based on the control signal.

[0007] One aspect of the present disclosure is directed to a control system for a multiphase power system including voltage regulator controls that implement peer-to-peer communication for controlling various aspects of each phase of the multi-phase powerDocket No. 214887-0016-W001 system. In some multi-phase power systems, single-phase voltage regulator controls are used to maintain individual phases of the multi-phase power system without concern for overall voltage imbalance between phases. In existing multi-phase power systems, dedicated three-phase voltage regulator controls may be used to control overall voltage imbalance. However, dedicated three-phase voltage regulator controls may be incompatible with existing multi-phase power system infrastructure and more expensive to implement into the multi-phase power system. Accordingly, it may be desired to minimize imbalance between phases based on voltage or tap position using single-phase voltage regulator controls implementing three-phase control algorithms.

[0008] In one aspect, a control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, the second regulator control in communication with the first regulator control, and a third regulator control configured to control a third tap changer associated with the third phase line, the third regulator control in communication with the first regulator control. The control system also includes an electronic processor of the first regulator control, the electronic processor in communication with the second regulator control and the third regulator control. The electronic processor is configured to receive a first set of data associated with the first phase line, a second set of data from the second regulator control associated with the second phase line, and a third set of data from the third regulator control associated with the third phase line, select a control algorithm from a plurality of control algorithms, transmit a control signal to the first regulator control, the second regulator control, and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data, and control the first tap changer, the second tap changer, and the third tap changer based on the control signal.

[0009] In another aspect, a control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes aDocket No. 214887-0016-W001 plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, the second regulator control in communication with the first regulator control, and a third regulator control configured to control a third tap changer associated with the third phase line, the third regulator control in communication with the first regulator control. The control system also includes an electronic processor of the first regulator control, the electronic processor in communication with the second regulator control and the third regulator control. The electronic processor is configured to receive a first set of data associated with the first phase line, a second set of data from the second regulator control associated with the second phase line, and a third set of data from the third regulator control associated with the third phase line, determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data, determine a voltage regulation command based on the voltage of the first phase line, transmit a control signal including the voltage regulation command to the first regulator control, the second regulator control, and the third regulator control, and control the first tap changer, the second tap changer, and the third tap changer based on the control signal.

[0010] In another aspect, a control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, the second regulator control in communication with the first regulator control, and a third regulator control configured to control a third tap changer associated with the third phase line, the third regulator control in communication with the first regulator control. The control system also includes an electronic processor of the first regulator control, the electronic processor in communication with the second regulator control and the third regulator control. The electronic processor is configured to receive a first set of data associatedDocket No. 214887-0016-W001 with the first phase line, a second set of data from the second regulator control associated with the second phase line, and a third set of data from the third regulator control associated with the third phase line, determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data, determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line, determine a voltage regulation command based on the average voltage, transmit a control signal including the voltage regulation command to the first regulator control, the second regulator control, and the third regulator control, and control the first tap changer, the second tap changer, and the third tap changer based on the control signal.

[0011] Other aspects of the disclosure will become apparent by consideration of the detailed description and accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG. 1 illustrates a voltage regulator control system, according to some embodiments.

[0013] FIG. 2 is a block diagram of a control system of a voltage regulator control system, according to some embodiments.

[0014] FIG. 3 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0015] FIG. 4 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0016] FIG. 5 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.Docket No. 214887-0016-W001

[0017] FIG. 6 illustrates a table including a three-phase regulator control protocol, according to some embodiments.

[0018] FIG. 7 illustrates a table including a datagram format for the three-phase regulator control protocol of FIG. 6, according to some embodiments.

[0019] FIG. 8 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0020] FIG. 9 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0021] FIG. 10 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0022] FIG. 11 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0023] FIG. 12 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0024] FIG. 13 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0025] FIG. 14 is a flowchart illustrating a method of controlling voltage regulator controls of a voltage regulator control system, according to some embodiments.

[0026] FIG. 15 illustrates an exemplary voltage bandcenter setting, according to some embodiments.

[0027] FIG. 16 illustrates a block diagram of an exemplary voltage regulator control, according to some embodiments.DETAILED DESCRIPTIONDocket No. 214887-0016-W001

[0028] FIG. 1 illustrates a voltage regulator control system 100 according to one or more embodiments of the disclosure. The voltage regulator control system 100, for example, may be used to control the changing of voltage tap positions in a three-phase power system using components thereof. Voltage tap positions may hereinafter be referred to simply as “tap positions.”

[0029] As shown, the voltage regulator control system 100 includes respective control mechanisms, e.g., switches, indicators, etc., that correspond to three respective phase lines, e.g., phase-A, phase-B, and phase-C, of a three-phase power system. In particular, the voltage regulator control system 100 includes a first set of control mechanisms 110A that correspond to a first regulator used for controlling the regulator tap changer(s) associated with a first phase voltage regulator, e.g., phase-A, of a three- phase power system. The first set of control mechanisms 110A that correspond to a first regulator may hereinafter be referred to as the first regulator control 110A. The voltage regulator control system 100 further includes a second set of control mechanisms HOB that correspond to a second regulator used for controlling the regulator tap changer(s) associated with a second phase voltage regulator, e.g., phase-B, of a three-phase power system. Furthermore, the voltage regulator control system 100 includes a third set of control mechanisms 110C that correspond to a third regulator used for controlling the regulator tap changer(s) associated with third phase voltage regulator, e.g., phase-C, of a three-phase system. The second set of control mechanisms 1 10B that correspond to a second regulator may hereinafter be referred to as the “second regulator control HOB” and the third set of control mechanisms 110C that correspond to a third regulator may hereinafter be referred to as the “third regulator control 1 IOC ” Accordingly, the regulator controls 110A-110C regulate line voltages of each respective phase in a three- phase power system by adjusting voltage tap positions. That is, each regulator control 110 is a single-phase control system rather than a multi-phase control system.

[0030] In accordance with exemplary embodiments, each regulator control 110A- 110C respectively includes, among other things, several switches and / or buttons for controlling operation of a respective phase tap changer for phases A through C of theDocket No. 214887-0016-W001 three-phase power system. For example, each regulator control 110A-1 IOC respectively includes a mode switch 115A-115C used to select an operation mode of a respective tap change. In some embodiments, a user selects the operation mode, or a corresponding control algorithm. In addition, each regulator control 110A-1 IOC respectively includes power switches 120A-120C, which are used to control whether a tap changer, or tap change motor, is powered by an internal or external power source. In addition, each regulator control 110A-1 IOC respectively includes a tap change switch 125A-125C used for raising and / or lowering the positions of a respective voltage tap.

[0031] As shown in FIG. 1, each regulator control 110A-110C further supports one or more additional user-interface components for controlling and / or monitoring operation of the regulator tap changer for phases A through C. For example, in some embodiments, each regulator control 110A-110C respectively includes a display 130 for monitoring various system conditions and several control buttons 135 for providing various inputs to each regulator control 110A-110C, respectively. Various indicator lights 140 are also provided for visually indicating certain conditions, such as forward or reverse power, voltage raise or lower operation, and others. In some embodiments, each regulator control 110A-110C includes a USB interface 145 and / or smart flash SD card interface 150. Furthermore, in accordance with the exemplary embodiment of FIG. 1, each regulator control 110A-110C may include one or more additional terminal ports that provide power to the three tap changers, or more specifically the motors for the three tap changers to enable mechanical switching to the necessary tap(s).

[0032] In some embodiments, the voltage regulator control system 100 includes a communication module 105. In the illustrated embodiment of FIG. 1, the communication module 105 is communicatively connected to the first regulator control 110A. The communication module 105 is configured to provide communication between the first regulator control 110A and one or more external devices in a three-phase power system, as described in greater detail with respect to FIG. 2. Although illustrated as communicatively connected to the first regulator control 110A, in some embodiments, the communication module 105 is communicatively connected to the second regulatorDocket No. 214887-0016-W001 control HOB or the third regulator control 1 IOC. In some embodiments, the communication module 105 and the regulator controls 110A-110C are electrically and communicatively connected by a plurality of electrical connectors 200 (e.g., peer-to-peer communication link), as described in greater detail below with respect to FIG. 2. As illustrated in the embodiment of FIG. 1, the communication module 105 is connected to the first regulator control 110A by one of the plurality of electrical connectors 200. The first regulator control 110A is connected to the second regulator control 110B by one of the plurality of electrical connectors 200. The second regulator control 110B is also connected to the third regulator control 110C by one of the plurality of electrical connectors 200. In some embodiments, each of the plurality of electrical connectors 200 is a copper wire connection. In other embodiments, each of the plurality of electrical connectors 200 is a fiber cable connection. Although illustrated in a particular configuration, it should be understood that the plurality of electrical connectors 200 may connect the communication module 105 and the regulator controls 110A-110C in a different order or configuration than illustrated in the embodiment of FIG. 1.

[0033] FIG. 2 illustrates an example block diagram of a control system 300 of an exemplary tap changing system used for a three-phase power system, according to some embodiments. The control system 300 includes the regulator controls 110A-110C which are electrically and / or communicatively connected to a variety of modules or components of the control system 300. In some embodiments, the control system 300 includes the regulator controls 110A-110C, a user-interface 305, sensors 310, communication module 315, power supply 320, and tap change motors 325A-325C for adjusting voltage tap positions associated with each respective phase in a three-phase power system.

[0034] In some embodiments, each of the regulator controls 110A-110C may be configured to receive signals and / or send signals when a user operates one or more of the mode switches 115A-115C, power switches 120A-120C, and / or tap change switches 125A-125C. For example, the first regulator control 110A may be configured to automatically operate a respective regulator control 110 when the corresponding mode switch is configured to perform automatic mode of operation. Similarly, the firstDocket No. 214887-0016-W001 regulator control 110A may be configured to power a particular regulator control 110 with voltage supplied by the phase lines when the corresponding power switch 120 is moved to the external power source setting. Furthermore, when operating in a manual mode of operation, the first regulator control 110A may be configured to raise or lower a particular tap position based on operation of one or more of the tap change switches 125A-125C.

[0035] Each of the regulator controls 110A-110C is further configured to communicate with a user-interface 305 and one or more sensors 310. The user-interface 305 includes, for example, the display 130, the control buttons 135, and the various indicator lights 140. The sensors 310 may include one or more voltage sensors used for monitoring the respective voltages of the phase lines, e.g., phases A-C, included in the three-phase power system. The sensors 310 may also include one or more current sensors, one or more temperature sensors, one or more additional voltage sensors, and / or one or more other sensors for monitoring physical and electrical characteristics of the tap changing system.

[0036] The communication module 315 is configured to provide communication between the regulator controls 110A-110C (for example, the first regulator control 110A in the illustrated embodiment of FIG. 1) and one or more external devices (for example, a smart phone, a tablet, a laptop, etc.) in a three-phase power system. In some embodiments, the communication module 315 includes similar components to and operates in a similar manner to the communication module 105. In some embodiments, the communication module 315 includes the USB interface 145 and the smart flash SD card interface 150. In some embodiments, the communication module 315 includes one or more wireless and / or wired transmitters, receivers, and / or transceivers used for communicating with external devices. In some embodiments, the communication module 315 is configured to communicate with external devices operated by a utility service provider and / or a service technician. In such embodiments, the communication module 315 may communicate with the one or more external devices through a network. The network may be, for example, a wide area network (WAN) (e.g., the Internet, a TCP / IPDocket No. 214887-0016-W001 based network, a cellular network, such as, for example, a Global System for Mobile Communications [GSM] network, a General Packet Radio Services [GPRS] network, a Code Division Multiple Access [CDMA] network, an Evolution-Data Optimized [EV- DO] network, an Enhanced Data Rates for GSM Evolution [EDGE] network, a 3 GSM network, a 4GSM network, a Digital Enhanced Cordless Telecommunications [DECT] network, a Digital AMPS [IS-136 / TDMA] network, or an Integrated Digital Enhanced Network [iDEN] network, etc.). In other embodiments, the network may be, for example, a local area network (LAN), a neighborhood area network (NAN), a home area network (HAN), or personal area network (PAN) employing any of a variety of communications protocols, such as Wi-Fi, Bluetooth, ZigBee, etc. In yet another embodiment, the network includes one or more of a wide area network (WAN), a local area network (LAN), a neighborhood area network (NAN), a home area network (HAN), or personal area network (PAN). In some embodiments, the communication module 315 communicates with one or more peripheral devices in a supervisory control and data acquisition (SCADA) management system.

[0037] As shown, the control system 300 of the tap changing system further includes a power supply 320 that is electrically and / or communicatively coupled to the regulator controls 110A-110C and tap change motors 325A-325C, included in control system 300. The power supply 320 may be configured to selectively provide power from either an internal power source or an external power source to the various components of the control system 300. In some embodiments, the power supply 320 includes an internal power source, such as a rechargeable battery, which may be used to provide power to one or more components included in the control system 300. For example, the power supply 320 may power the control system 300 with power from the rechargeable battery when one or more of the power switches 120A-120C are set to the internal power source position.

[0038] In some embodiments, the power supply 320 is further configured to selectively power components of the control system 300 with power received from an external power source, such as the phase lines included in a three-phase power system.Docket No. 214887-0016-W001In such embodiments, the power supply 320 may include one or more AC-AC converters, AC -DC converters, and / or DC-DC converters configured to convert the AC power supplied by phase lines to an appropriate level used for powering the one or more components of control system 300.

[0039] Referring again to FIG. 2, each of the regulator controls 110A-110C further includes a plurality of electrical and electronic components that provide power, operational control, and protection to the components and modules within the respective regulator controls 110A-110C and / or the control system 300. For example, each of the regulator controls 110A-110C includes, among other things, an electronic processor 340 (for example, a microprocessor or another suitable programmable device) and a memory 345.

[0040] The memory 345 includes, for example, a program storage area and a data storage area. The program storage area and the data storage area can include combinations of different types of memory, such as read-only memory (ROM) and random-access memory (RAM). Various non-transitory computer readable media, for example, magnetic, optical, physical, or electronic memory may be used. The electronic processor 340 is communicatively coupled to the memory 345 and executes software instructions that are stored in the memory 345, or stored in another non-transitory computer readable medium such as another memory or a disc. The software may include one or more applications, program data, filters, rules, one or more program modules, and other executable instructions. In some embodiments, the memory 345 includes one or more modules configured to perform various functions of each of the regulator controls 110A-110C. For example, memory 345 may include a voltage comparator module used to analyze voltages of the corresponding phase lines. In some embodiments, memory 345 may additionally or alternatively include a tap change module used to generate signals (e.g., raise and / or lower signals) to instruct the tap change motors 325A-325C to change the tap positions based on phase line voltage measurements. In some embodiments, memory 345 may additionally or alternatively include a tap change module used to generate signals (e.g., raise and / or lower signals) to instruct the tap change motorsDocket No. 214887-0016-W001325A-325C to change the tap positions based on positions of the tap change switches 125A-125C.

[0041] In some embodiments, the first regulator control 110A includes the electronic processor 340 and the memory 345 (e.g., a first electronic processor and a first memory), the second regulator control HOB includes the electronic processor 340 and the memory 345 (e.g., a second electronic processor and a second memory), and the third regulator control 110C includes the electronic processor 340 and the memory 345 (e.g., a third electronic processor and a third memory). Additionally, each of the regulator controls 110A-110C are electrically and communicatively connected to one another by a plurality of connectors 350 (e.g., peer-to-peer communication link). In some embodiments, the plurality of connectors 350 operate in a similar manner to the plurality of electrical connectors 200. For example, the first regulator control 110A is connected to the second regulator control 110B by one of the plurality of connectors 350. The first regulator control 110A is also connected to the third regulator control 110C by one of the plurality of connectors 350. The second regulator control HOB is also connected to the third regulator control 110C by one of the plurality of connectors 350. In some embodiments, the plurality of connectors 350 are wired connections between each of the regulator controls 110A-110C such that each of the regulator controls 110A-110C can communicate using peer-to-peer communication, for example, via a peer-to-peer communication link 200. For example, the plurality of connectors 350 may be an Ethernet connection between each of the regulator controls 110A-110C such that the regulator controls 110A-110C communicate with one another using an Ethernet protocol (e.g., internet protocol (IP)) and the communication may be performed using the IP layer.

[0042] With respect to control methods described herein, each of the regulator controls 110A-110C receives signals from and / or sends signals to the other regulator controls 110A-110C via the plurality of connectors 350 using peer-to-peer communication. In some embodiments, the regulator controls 110A-110C operate in a ganged manner to execute the control methods described herein. For example, one of the regulator controls 110A-110C is a primary regulator control (e.g., a gang boss) thatDocket No. 214887-0016-W001 receives and sends signals to the remaining regulator controls 110A-1 IOC to control the tap change motors 325A-325C for adjusting voltage tap positions associated with each respective phase in the three-phase power system. The remaining regulator controls 110A-1 IOC are secondary regulator controls (e.g., gang members) that receive control signals from the primary regulator control to implement the control methods described herein. It should be understood that any one of the regulator controls 110A-1 IOC may be selected as the primary regulator control to implement any one of the control methods described herein using peer-to-peer communication with the remaining regulator controls 110A-1 IOC. For ease of description and clarity, the control methods described herein are described using the first regulator control 110A, including the electronic processor 340 (e.g., the first electronic processor) and the memory 345 (e.g., the first memory), as the primary regulator control. In other embodiments, the second regulator control 11 OB or the third regulator control 110C may be the primary regulator control.

[0043] In some embodiments, a responsiveness of the voltage regulator control system 100 depends on a communication speed between the regulator controls 110A- 110C over a system network. In some embodiments, the system network may be the network as described above with respect to the communication module 315. For example, the system network may be a private ethemet network. The communication speed may be a speed at which the regulator controls 110A-110C transmit and receive data and / or control signals between the regulator controls 1 10A-110C. The faster the speed at which the regulator controls 110A-110C transmit and receive signals (e.g., the faster the communication speed), the more responsive the voltage regulator control system 100 is to implement the data and / or control signals according to the methods described herein. For example, the electronic processor 340 adjusts a period of time between transmitted data and / or control signals (e.g., a heartbeat period of a transmitted control signal) to adjust the communication speed of the voltage regulator control system 100. The regulator controls 110A-110C regulate voltage based on the communication speed. In some embodiments, the electronic processor 340 receives a time signal from a user input of the user-interface 305 indicative of the period of time between data and / orDocket No. 214887-0016-W001 control signals. In such embodiments, the electronic processor 340 adjusts the period of time between transmitted data and / or control signals based on the time signal.

[0044] As described above, the electronic processor 340 is configured to, using the regulator controls 110A-110C, control the tap change motors 325A-325C to automatically adjust the tap positions. The electronic processor 340 automatically adjusts tap positions to bring the voltage of the three-phase power system within a target band (e.g., within a desired voltage range) of a voltage setpoint, or bandcenter. The electronic processor 340 is configured to implement a plurality of control algorithms (e.g., control methods) to adjust the tap positions. In some embodiments, a user may select a control algorithm of the plurality of control algorithms via the user-interface 305. In other embodiments, the electronic processor 340 may automatically switch between control algorithms of the plurality of control algorithms based on voltage requirements of the three-phase power system. For example, a control algorithm of the plurality of control algorithms may be selected based on power demand of the three-phase power system, a control situation of the three-phase power system, or any suitable reason for switching control methodology of the tap positions. In some embodiments, the electronic processor 340 is configured implement a “Strict Gang Individual Phase” control method for controlling the tap positions for each phase line. In such embodiments, the electronic processor 340 controls the tap position for each phase according to a setpoint and / or compensated voltage associated with a particular phase. For example, the electronic processor 340 controls the tap position of phase A, phase B, and phase C based on a phase A voltage setpoint and the respective compensated voltage of phase A. In some embodiments, the electronic processor 340 is configured to implement a “Strict Gang Average” control method for controlling the tap positions for each phase line. In such embodiments, the electronic processor 340 controls the tap position for each phase according to an average compensated voltage associated with the three-phase power system. For example, the electronic processor 340 controls the tap position of phase A, phase B, and phase C based on an average compensated voltage of phase A, phase B, and phase C. In some embodiments, the multi -phase setpoint may be, for example, a targetDocket No. 214887-0016-W001 bandcenter and / or voltage band for the multi-phase voltage of the three-phase power system.

[0045] In some embodiments, the electronic processor 340 is configured to regulate the voltage of the three-phase power system by implementing a “Gang Average- Voltage Adjust” control method. While implementing the “Gang Average- Voltage Adjust” control method, the electronic processor 340 controls the tap positions for each phase line using the same multi-phase setpoint and an average compensated voltage of the system. The electronic processor 340 controls a tap changer of a regulator control corresponding to the phase most out of band of the desired voltage range. For example, if phase C is the most out of band of the desired voltage range, the electronic processor 340 adjusts the tap position of phase C. The electronic processor 340 adjusts the tap position of the phase currently the most out of band until the desired voltage range is back within band. In some embodiments, the electronic processor 340 is configured to implement a “Gang Average-Tap Adjust” control method for controlling tap positions for each phase line. In such embodiments, the electronic processor 340 controls the tap position of a tap changer of a regulator control corresponding to the phase with a tap position furthest away from an average tap position of the three-phase power system. For example, if the tap position of phase A is the furthest from the average tap position, the electronic processor 340 adjusts the tap position of phase A to be closer to the average tap position.

[0046] In some embodiments, the electronic processor 340 is configured to implement an “Average Independent” control method for controlling tap positions for each phase line. In such embodiments, the electronic processor 340 of the first regulator control 110A receives data for each phase line from each regulator control 110A-110C and determines an average value. The electronic processor 340 sends a control signal to each regulator control 110A-110C including the average value. Each regulator control 110A-110C independently adjusts the tap position of the corresponding phase based on the control signal. For example, the electronic processor 340 of the first regulator control 110A receives data for each phase line from the respective regulator control 110A-110C and determines the average compensated voltage for the three-phase power system. TheDocket No. 214887-0016-W001 electronic processor 340 sends the control signal including the average compensated voltage to each regulator control 110A-110C and each regulator control 110A-110C adjusts the tap position of the corresponding phases based on the average compensated voltage.

[0047] In some embodiments, the electronic processor 340 is configured to implement an “Independent Min (Minimum) Tap Imbalance” control method for controlling tap positions for each phase line to reduce tap position imbalance for the three-phase power system. In such embodiments, the electronic processor 340, while each phase is in-band of a desired voltage range, determines whether any of the regulator controls 110A-110C can adjust tap position (e.g., via tap change motors 325A-325C) in a direction of an average tap position. In response to determining that a tap adjust operation can occur, the electronic processor 340 transmits a control signal to the corresponding regulator controls 110A-110C and the corresponding regulator control 110A-110C independently adjusts tap position. For example, when the electronic processor 340, while each phase is in-band of the desired voltage range, determines that phase C can be adjusted in the direction of the average tap position, the electronic processor 340 sends the control signal to the third regulator control 110C. The third regulator control 110C independently adjusts the tap position corresponding to phase C. In some embodiments, the electronic processor 340 is configured to implement an “Independent Min (Minimum) Voltage Imbalance” control method for controlling tap positions for each phase line to reduce voltage imbalance for the three-phase power system. In such embodiments, the electronic processor 340, while each phase is in-band of a desired voltage range, determines whether any of the regulator controls 110A-110C can adjust tap position (e.g., via tap change motors 325A-325C) to lower a voltage imbalance of the three-phase power system while each phase stays in-band of the desired voltage range. In response to determining that a tap adjust operation can occur, the electronic processor 340 transmits a control signal to the corresponding regulator controls 110A-110C and the corresponding regulator control 110A-110C independently adjusts tap position. For example, when the electronic processor 340, while each phase is inDocket No. 214887-0016-W001 band of the desired voltage range, determines that phase C can be adjusted to reduce the voltage imbalance, the electronic processor 340 sends the control signal to the third regulator control 110C. The third regulator control 110C independently adjusts the tap position corresponding to phase C.

[0048] FIG. 3 is a flowchart illustrating a method 600 of controlling the regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. In some embodiments, the method 600 is a general control method for controlling the regulator controls 110A-110C that can be modified according to the control methods introduced above and further described below. The method 600 (and other methods described herein) is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 600 (and other methods described herein) may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel. At block 605, the electronic processor 340 of the first regulator control 110A receives a first set of data associated with the first phase line, a second set of data from the second regulator control HOB associated with the second phase line, and a third set of data from the third regulator control 110C associated with the third phase line using peer-to-peer communication. For example, the electronic processor 340 of the first regulator control 110A receives the second set of data directly from the second regulator control HOB and the third set of data directly from the third regulator control 110C via the plurality of connectors 350. In some embodiments, each set of data includes information related to the voltage of the respective phase and tap positions of the respective phase. At block 610, the electronic processor 340 selects a control algorithm from a plurality of control algorithms. For example, the electronic processor 340 selects the control algorithm (e.g., control method) from the plurality of control algorithms described herein (FIGS. 8-14). In some embodiments, the electronic processor 340 receives a signal indicative of a user input selecting the control algorithm via the user-interface 305.Docket No. 214887-0016-W001

[0049] At block 615, the electronic controller 340 transmits (e.g., sends) a control signal to the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C based on the control algorithm, the first set of data, the second set of data, and the third set of data. At block 620, the electronic processor 340 controls the first tap changer, the second tap changer, and the third tap changer (e.g., via the tap change motors 325A-325C based on the control signal. For example, the electronic processor 340 of the first regulator control 110A sends the control signal to each of the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C to control the respective tap change motors 325A-325C to adjust tap positions according to the selected control algorithm of block 610. In some embodiments, following the control of each tap changer at block 620, the method 600 returns to block 605 such that the method 600 may be repeated as many times as necessary to regulate voltage of the three-phase power system.

[0050] FIG. 4 is a flowchart illustrating a method 700 for regulating voltage of a power distribution system, such as the voltage regulator control system 100, according to some embodiments. In some embodiments, the method 700 is a general control method for controlling the regulator controls 110A-110C that can be modified according to the control methods introduced above and further described below. It should be understood that although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0051] At block 705, the electronic processor 340 of the first regulator control 110A starts the method 700. At block 710, the electronic processor 340 determines whether a target clock cycle condition, for example a clock cycle tick of 260.4 microseconds, is met. If the target clock cycle condition is met, the electronic processor 340 performs an interrupt driven service routine (blocks 715-725). At block 715, the electronic processor 340 samples each analog channel feed, and correspondingly, converts the sampled analog signals to digital signals. At block 720, the electronic processor 340 applies a recursive discrete fourier transform (DFT) to each channel feed input. At block 725, the electronic processor 340 calculates the current flowing through the tap change motors 325A-325C.Docket No. 214887-0016-W001

[0052] At block 730, the electronic processor 340 determines whether a target number of samples, such as 64 samples, have been counted. If the target number of samples have not been counted, the electronic processor 340 returns to block 710. If the target number of samples have been counted, the electronic processor 340 performs a status update for one or more of the tap change motors 325A-325C (block 735). Performing the status update might include checking the value(s) of the current flowing through one or more of the tap change motors 325A-325C.

[0053] At block 740, the electronic processor 340 determines whether the state of one or more of the tap change motors 325A-325C is equal to zero. If, at block 740, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is zero, the electronic processor 340 performs a first routine to manage the voltage setpoints of the system and manage the status of electrically erasable programmable read-only memory (EEPROM) coupled to electronic processor 340 (block 745). After block 745, the electronic processor 340 increments the state of the one or more tap change motors 325A-325C by one (block 750) and determines whether the updated state of the one or more tap change motors 325A-325C is greater than three (block 755). If the state of one or more of the tap change motors 325A-325C is greater than three, the electronic processor 340 sets the state of the one or more tap change motors 325A-325C to zero (block 760) before returning to block 735. If the state of one or more of the tap change motors 325A-325C is not greater than three, the electronic processor 340 returns to block 735.

[0054] Referring back to block 740, if the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is not equal to zero, the electronic processor 340 determines whether the state of one or more of the tap change motors 325A-325C is equal to one (block 765). If, at block 765, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is equal to one, the electronic processor 340 performs one or more housekeeping tasks (block 770) and proceeds to block 750. If, at block 765, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is not equalDocket No. 214887-0016-W001 to one, the electronic processor 340 determines whether the state of one or more of the tap change motors 325A-325C is equal to two (block 775).F0055] If, at block 775, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is equal to two, the electronic processor 340 performs one or more datalogging tasks (block 780) and proceeds to block 750. If, at block 775, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is not equal to two, the electronic processor 340 determines whether the state of one or more of the tap change motors 325A-325C is equal to three (block 785).

[0056] If, at block 785, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is equal to three, the electronic processor 340 performs one or more voltage regulation routines for each phase (block 790). For example, the electronic processor 340 uses one or more of the voltage regulation (e.g., control) methods described herein to regulate the voltage. After regulating the phase voltages, the electronic processor 340 proceeds to block 750. If, at block 785, the electronic processor 340 determines that the state of one or more of the tap change motors 325A-325C is not equal to three, the electronic processor 340 outputs an error notification (block 795) before proceeding to block 760.

[0057] FIG. 5 is a flowchart illustrating a method 800 for regulating voltage of a power distribution system, such as the voltage regulator control system 100, according to some embodiments. For example, the method 800 may be executed to determine when to implement a tap adjustment operation, such as the control algorithms described herein. In some embodiments, the method 800 is a general control method for controlling the regulator controls 110A-110C that can be modified according to the control methods introduced above and further described below. It should be understood that although illustrated as occurring sequentially, some of the steps may be performed in parallel.Docket No. 214887-0016-W001

[0058] At block 805, the electronic processor 340 of the first regulator control 110A starts the method 800. At block 810, the electronic processor 340 determines tap positions for each of the tap change motors 325A-325C based on data received from each of the regulator controls 110A-110C. At block 815, the electronic processor 340 checks stored tap position information (e.g., a reference table of tap positions stored in the memory 345) and compares the determined tap positions to the stored tap position information. At block 820, the electronic processor 340 sets a blink timer (e.g., a clock timer for implementing operations of the method 800) based on the comparison between the determined tap positions and the stored tap position information (labelled in block 820 as EE data). At block 825, the electronic processor 340 checks for an overcurrent condition on each of the phase lines. For example, the electronic processor 340 determines if the overcurrent condition occurs at each of the regulator controls 110A- 110C based on the current of each of the phase lines. If the electronic processor 340 does not determine the overcurrent condition, the method 800 proceeds to block 830. At block 830, the electronic processor 340 selects an operation mode for the three-phase power system. For example, the electronic processor 340 selects a control algorithm of the plurality of control algorithms described herein based on the comparison between the determined tap positions to the stored tap position information and the current of each of the phase lines. In some embodiments, the electronic processor 340 selects the control algorithm based on a user input from the user- interface 305, voltage values of the phase lines, or other determined values from the regulator controls 110A-1 10C.

[0059] At block 835, the electronic processor 340 checks for a timer type change (e.g., a blink of the blink timer of block 820). When the electronic processor 340 determines that the timer type change occurs, the method 800 proceeds to block 840. At block 840, the electronic processor 340 checks a tap limit (e.g., a tap position threshold) for each of the tap changers. For example, the electronic processor 340 determines the tap positions from each of the tap change motors 325A-325C. At block 845, the electronic processor 340 checks a voltage limit (e.g., a voltage value threshold) for each of the phase lines. For example, the electronic processor 340 compares a voltage value ofDocket No. 214887-0016-W001 each of the phase lines to the voltage limit. In some embodiments, the voltage limit is the target band (e.g., the desired voltage range). When the electronic processor 340 determines that the voltage value of any one of the phase lines is greater than the voltage limit the method 800 proceeds to block 850. At block 850, the electronic processor 340 executes a voltage reduction operation. In some embodiments, the electronic processor 340 implements the selected control algorithm to send a lower command one or more of the regulator controls 110A-110C to reduce voltage of the corresponding phase line. At step 855, the electronic processor 340 executes a variable bias step to determine whether any voltage values (e.g., variables) were omitted in the voltage reduction operation. When the electronic processor 340 determines that a voltage value was omitted, the electronic processor 340 may execute the voltage reduction operation again at block 855.

[0060] At block 860, the electronic processor 340 determines whether to configure a real-time network option based on the data received in blocks 810-855. If the electronic processor 340 determines to configure the real-time network option at block 860, the method 800 proceeds to block 865. At block 865, the electronic controller 340 assigns a real-time network supervisor. For example, the electronic processor 340 monitors data transmitted over the real-time network from peer-to-peer communication. After assigning the real-time network supervisor at block 865, the method 800 proceeds to step 870. Additionally, if the electronic processor 340 determines not to configure the realtime network option at block 860, the method 800 proceeds to block 870. At block 870, the electronic processor 340 controls each of the regulator controls 110A-110C. For example, the electronic processor 340 transmits a control signal to each of the regulator controls 110A-110C accordingly the selected control algorithm. At step 875, the electronic processor 340 calculates a voltage regulator quality factor (VRQF) based on the control of the voltage regulators 110A-110C at block 870. For example, the electronic processor 340 may determine whether the control of the voltage regulators 110A-110C at step 870 brought an average compensated voltage of the three-phase power system within the target band.Docket No. 214887-0016-W001

[0061] At step 880, the electronic processor 340 determines whether to implement a test mode for the regulator controls 110A-110C. When the electronic processor 340 determines not to implement the test mode at block 880, the method 800 proceeds to block 885. At block 885, the electronic processor 340 determines whether a system error (e.g., an overcurrent condition, an overvoltage condition, etc.) of the three-phase voltage system is greater than a critical error limit. If the electronic processor 340 determines that the system error is greater than the critical error limit, the method 800 proceeds to block 890. At block 890, the electronic processor 340 determines whether to implement a self-test. If the electronic processor 340 implements the self-test at block 890, the method 800 proceeds to block 895. At block 895, the electronic processor 340 executes a manual operation to raise or lower a particular tap position of the tap change switches 125A-125C. Returning to block 890, if the electronic processor 340 does not implement the self-test, the method 800 proceeds to block 1800. At block 1800, the electronic processor 340 executes voltage regulation logic to raise or lower a particular tap position of the tap change switches 125A-125C to regulate voltage, for example, as described with respect to the method 600 and / or the method 700. After regulating voltage at the block 1800, the method 800 proceeds to block 895. Returning to block 885, when the electronic processor 340 determines that the system error is less than the critical error limit, the method 800 proceeds to block 895. After executing the manual operation, the method 800 proceeds to block 1805 and exits (or ends) the method 800.

[0062] Returning to block 880, when the electronic processor 340 implements the test mode, the method 800 proceeds to block 1810. At block 1810, the electronic processor 340 determines whether there is a system error for the three-phase power system. When the electronic processor 340 determines the system error, the method 800 proceeds to block 1815. At block 1815, the electronic controller 340 transmits a signal to turn off the various indicator lights 140, indicating that the system error is present. Returning to block 1810, when the electronic processor 340 does not determine the system error, the method 800 proceeds to block 1820. At block 1820, the electronic processor 340 determines whether to implement the self-test. In some embodiments, the self-testDocket No. 214887-0016-W001 implemented at block 1820 may be similar to the self-test implemented at block 890. If the electronic processor 340 implements the self-test, the method 800 proceeds to block 1815. When the electronic controller 340 does not implement the self-test, the method 800 proceeds to block 1825. At block 1825, the electronic processor 340 determines whether to execute a sealin misOP block. If the electronic processor 340 implements the sealin misOP block, the method 800 proceeds to block 1815. If the electronic processor 340 implements the sealin misOP block, the method 800 proceeds to block 1830. At block 1830, the electronic processor 340 determines whether to execute an alarm corresponding to an error of the three-phase power system. If the electronic processor 340 executes the alarm, the method 800 proceeds to block 1815. If the electronic processor 340 does not execute the alarm, the method 800 proceeds to block 1835. At block 1835, the electronic controller 340 determines whether to execute a low current block. If the electronic controller 340 executes the low current block, the method 800 proceeds to block 1815. If the electronic processor 340 does not execute the low current block, the method 800 proceeds to block 1805.

[0063] Returning to block 1815, after transmitting a signal to turn off the various indicator lights 140, the method 800 proceeds to block 1840. At block 1840, the electronic processor 340 determines whether the system error is within a critical range of system error values. If the electronic processor 340 determines that the system error is within the critical range, the method 800 proceeds to block 1845. At block 1845, the electronic processor 340 terminates that tap adjustment operation and proceeds to block 1805. Returning to block 1840, if the electronic processor 340 determines that the system error is not within the critical range, the method 800 proceeds to block 1850. At block 1850, the electronic processor 340 determines whether to implement the self-test. In some embodiments, the self-test implemented at block 1850 may be similar to the selftest implemented at block 890 or block 1820. If the electronic processor 340 implements the self-test, the method 800 proceeds to block 1845. If the electronic processor 340 does not implement the self-test, the method 800 proceeds to block 1855. At block 1855, the electronic processor 340 determines whether to execute the low current block. If theDocket No. 214887-0016-W001 electronic processor 340 executes the low current block, the method 800 proceeds to block 1845. If the electronic processor 340 does not execute the low current block, the method 800 proceeds to block 1805.

[0064] FIG. 6 illustrates a table 900 including a three-phase regulator control protocol (3PHR), according to some embodiments. In some embodiments, the 3PHR illustrated in the table 900 is executed by the regulator controls 110A-110C for peer-to-peer communication between the regulator controls 110A-110C. For example, the 3PHR is executed by the regulator controls 110A-110C to implement the control algorithms described herein. In some embodiments, the 3PHR is based on a producer and a consumer concept. Each of the regulator controls 110A-110C is a producer (e.g., writes) when it sends data to be consumed (e.g., read) by other regulator controls 110A-110C. In some embodiments, the 3PHR uses User Datagram Protocol (UDP), which is a connectionless protocol that does not require prior communication between the regulator controls 110A-110C to set up communication channels or data paths. In some embodiments, the producer can address any regulator control 110A-110C either through a unicast message or a multicast message. The 3PHR may be optimized for peer-to-peer communication between three devices (e.g., the regulator controls 110A-110C) for the purpose of voltage regulation of the three-phase power system. In some embodiments, each of the regulator controls 110A-110C is both a producer and a consumer. In some embodiments, each regulator control 110A-1 10C includes two UDP ports. The two UDP ports include a data port (3PHR UDP DATA PORT) and a control port (3PHR UDP CTL PORT). In general, the producer transmits a message to the consumer with the destination port as the 3PHR UDP DATA PORT. For example, the producer transmits metering data and / or setpoint / configuration data to the consumer. In some embodiments, any control signal, such as a raise tap command or a lower tap command is transmitted to the consumer using 3PHR UDP CTL PORT as the destination port. Depending on the selected control algorithm, the control signals may be multicast or unicast.Docket No. 214887-0016-W001

[0065] FIG. 7 illustrates a table 1000 including a datagram format for the 3PHR of FIG. 6, according to some embodiments. In some embodiments, the datagram format includes a header section and a payload section. In some embodiments, the header section is common to every type of control signal and includes fields, as illustrated in the table 900. In some embodiments, the payload section including data transmitted to the consumer which depends on the RequestID, as illustrated in the table 900. In some embodiments, up to 1,400 bytes of payload data are transmitted to the consumer via the datagram format.

[0066] FIG. 8 is a flowchart illustrating a method 1100 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1100 is a first control algorithm of the plurality of control algorithms corresponding to the “Strict Gang Individual Phase” control method. The method 1100 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1100 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0067] At block 1105, the electronic processor 340 determines whether power flow is in the same direction for all regulator controls 110A-1 10C. In response to determining that power flow is not in the same direction, the method 1100 proceeds to block 1110. At block 1110, the regulator controls 110A-110C return to independent operation. For example, each of the regulator controls 110A-110C regulate voltage of the respective phase line independently. In response to determining that power flow is in the same direction, the method 1100 proceeds to block 1115. At block 1115, the electronic controller 340 uses a compensated voltage of the first regulator control 110A (e.g., the gang boss) for control of each regulator control 110A-110C. For example, the electronic processor 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set ofDocket No. 214887-0016-W001 data, and a compensated voltage of the third phase line based on the third set of data (FIG. 3).

[0068] At block 1120, the electronic controller 340 regulates voltage of the three- phase power system based on the voltage setpoint and the compensated voltage of the first regulator control 110A. For example, the electronic processor 340 determines a voltage regulation command based on the compensated voltage of the first phase line. At block 1125, the electronic processor 340 determines whether the voltage regulation command is a raise command. In response to determining that the voltage regulation command is a raise command, the electronic processor 340 proceeds to block 1130. At block 1130, the electronic controller 340 adjusts tap position by setting a raise output to high for the first regulator control 110A and sends the raise command to the second regulator control HOB and the third regulator control 110C. For example, the electronic processor 340 transmits the control signal (FIG. 3) including the raise command to the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C and controls the first tap changer, the second tap changer, and the third tap changer based on the raise command. The method 1100 then proceeds to block 1145 to continue regulating voltage of the three-phase power system via the method 1100.

[0069] Returning to block 1125, in response to determining that the voltage regulation command is not the raise command, the method 1100 proceeds to block 1135. In some embodiments, blocks 1125 and 1135 may be combined into a single block to determine whether the voltage regulation command is a raise command or a lower command simultaneously. At block 1135, the electronic processor 340 determines that the voltage regulation command is a lower command. At block 1140, the electronic controller 340 adjusts tap position by setting a lower output to high for the first regulator control 110A and sends the raise command to the second regulator control 110B and the third regulator control 110C. For example, the electronic processor 340 transmits the control signal including the lower command to the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C and controls the firstDocket No. 214887-0016-W001 tap changer, the second tap changer, and the third tap changer based on the lower command. The method 1100 then proceeds to block 1145.F0070] FIG. 9 is a flowchart illustrating a method 1200 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1200 is a second control algorithm of the plurality of control algorithms corresponding to the “Strict Gang Average” control method. The method 1200 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1200 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0071] At block 1205, the electronic processor 340 determines whether power flow is in the same direction for all regulator controls 110A-110C. In response to determining that power flow is not in the same direction, the method 1200 proceeds to block 1210. At block 1210, the regulator controls 110A-110C return to independent operation. For example, each of the regulator controls 110A-110C regulate voltage of the respective phase line independently. In response to determining that power flow is in the same direction, the method 1200 proceeds to block 1215. At block 1215, the electronic processor 340 calculates an average compensated voltage of the phase lines (e.g., based on voltage values from the corresponding regulator controls 110A-110C). For example, the electronic processor 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set of data, and a compensated voltage of the third phase line based on the third set of data and determines the average compensated voltage of the three-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line.

[0072] At step 1220, the electronic processor 340 regulates voltage of the three-phase power system based on the voltage setpoint and the average compensated voltage. ForDocket No. 214887-0016-W001 example, the electronic controller 340 determines a voltage regulation command based on the average compensated voltage. At block 1225, the electronic processor 340 determines whether the voltage regulation command is a raise command. In response to determining that the voltage regulation command is a raise command, the electronic processor 340 proceeds to block 1230. At block 1230, the electronic controller 340 adjusts tap position by setting a raise output to high for the first regulator control 110A and sends the raise command to the second regulator control HOB and the third regulator control 110C. For example, the electronic processor 340 transmits the control signal including the raise command to the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C and controls the first tap changer, the second tap changer, and the third tap changer based on the raise command. The method 1200 then proceeds to block 1245 to continue regulating voltage of the three-phase power system via the method 1200.

[0073] Returning to block 1225, in response to determining that the voltage regulation command is not the raise command, the method 1200 proceeds to block 1235. In some embodiments, blocks 1225 and 1235 may be combined into a single block to determine whether the voltage regulation command is a raise command or a lower command simultaneously. At block 1235, the electronic processor 340 determines that the voltage regulation command is a lower command. At block 1240, the electronic controller 340 adjusts tap position by setting a lower output to high for the first regulator control 110A and sends the raise command to the second regulator control HOB and the third regulator control 110C. For example, the electronic processor 340 transmits the control signal including the lower command to the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C and controls the first tap changer, the second tap changer, and the third tap changer based on the lower command. The method 1200 then proceeds to block 1245.

[0074] FIG. 10 is a flowchart illustrating a method 1300 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1300 is a third control algorithm of theDocket No. 214887-0016-W001 plurality of control algorithms corresponding to the “Gang Average Voltage Adjust” control method. The method 1300 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1300 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0075] At block 1305, the electronic processor 340 determines whether power flow is in the same direction for all regulator controls 110A-110C. In response to determining that power flow is not in the same direction, the method 1300 proceeds to block 1310. At block 1310, the regulator controls 110A-110C return to independent operation. For example, each of the regulator controls 110A-110C regulate voltage of the respective phase line independently. In response to determining that power flow is in the same direction, the method 1300 proceeds to block 1315. At block 1315, the electronic controller 340 uses a compensated voltage of the first regulator control 110A (e.g., the gang boss) for control of each regulator control 110A-110C. For example, the electronic processor 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set of data, and a compensated voltage of the third phase line based on the third set of data (FIG. 3). In some embodiments, the electronic processor 340 determines an average compensated voltage of the three-phase power system based on the compensated voltage of the first phase line, the compensated voltage of the second phase line, and the compensated voltage of the third phase line.

[0076] At block 1320, the electronic controller 340 regulates voltage of the three- phase power system based on the voltage setpoint and the compensated voltage of the first regulator control 110A. For example, the electronic processor 340 determines a voltage regulation command based on the compensated voltage of the first phase line or the average compensated voltage. At block 1325, the electronic processor 340 determines whether the voltage regulation command is a raise command. In response to determining that the voltage regulation command is a raise command, the electronicDocket No. 214887-0016-W001 processor 340 proceeds to block 1330. At block 1330, the electronic processor 340 sends the raise command to adjust tap position to the regulator control 110A-110C and corresponding phase line that reduces a voltage imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer corresponds to the compensated voltage furthest away from and less than the average compensated voltage controls the regulator control 110A-110C associated with the respective tap changer that is furthest away from and less than the average compensated voltage based on the raise command to minimize the voltage imbalance. In some embodiments, the electronic processor 340 determines the voltage imbalance as shown in Equation 1 below. In other embodiments, the electronic processor 340 determines the voltage imbalance using a voltage imbalance equation different than Equation 1.Voltage Imbalan ce=ABS(Phase A -Phase B) +ABS(Phase B -Phase C) +ABS(Phase C- Phase A )Equation 1

[0077] The method 1300 then proceeds to block 1345 to continue regulating voltage of the three-phase power system via the method 1300. Returning to block 1325, in response to determining that the voltage regulation command is not the raise command, the method 1300 proceeds to block 1335. In some embodiments, blocks 1325 and 1335 may be combined into a single block to determine whether the voltage regulation command is a raise command or a lower command simultaneously. At block 1335, the electronic processor 340 determines that the voltage regulation command is a lower command. At block 1340, sends the lower command to adjust tap position to the regulator control 110A-110C and corresponding phase line that reduces a voltage imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer corresponds to the compensated voltage furthest away from and greater than the average compensated voltage and controls the regulator control 110A-110C associated with the respective tap changer that is furthest away from and greater than the average compensated voltageDocket No. 214887-0016-W001 based on the lower command to minimize the voltage imbalance. The method 1200 then proceeds to block 1245.

[0078] FIG. 11 is a flowchart illustrating a method 1400 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1400 is a fourth control algorithm of the plurality of control algorithms corresponding to the “Gang Average Tap Adjust” control method. The method 1400 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1400 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0079] At block 1405, the electronic processor 340 determines whether power flow is in the same direction for all regulator controls 110A-110C. In response to determining that power flow is not in the same direction, the method 1400 proceeds to block 1410. At block 1410, the regulator controls 110A-110C return to independent operation. For example, each of the regulator controls 110A-110C regulate voltage of the respective phase line independently. In response to determining that power flow is in the same direction, the method 1400 proceeds to block 1415. At block 1415, the electronic controller 340 uses a compensated voltage of the first regulator control 110A (e g., the gang boss) for control of each regulator control 110A-110C. For example, the electronic processor 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set of data, and a compensated voltage of the third phase line based on the third set of data. In some embodiments, the electronic processor 340 determines an average compensated voltage of the three-phase power system based on the compensated voltage of the first phase line, the compensated voltage of the second phase line, and the compensated voltage of the third phase line.Docket No. 214887-0016-W001

[0080] At block 1420, the electronic controller 340 regulates voltage of the three- phase power system based on the voltage setpoint and the compensated voltage of the first regulator control 110A or the average compensated voltage. For example, the electronic processor 340 determines a voltage regulation command based on the compensated voltage of the first phase line or the average compensated voltage. At block 1425, the electronic processor 340 determines whether the voltage regulation command is a raise command. In response to determining that the voltage regulation command is a raise command, the electronic processor 340 proceeds to block 1430. At block 1430, the electronic processor 340 sends the raise command to adjust tap position to the regulator control 110A-110C and corresponding phase line that reduces (e.g., minimizes) a tap position imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position and controls the regulator control 110A-110C associated with the respective tap changer that is set to the lowest tap position based on the raise command to reduce the tap position imbalance. In some embodiments, the electronic processor 340 determines the tap position imbalance based on the maximum (or greatest) tap position of the tap changers minus the minimum (or lowest) tap position of the tap changers. The method 1400 then proceeds to block 1445 to continue regulating voltage of the three-phase power system via the method 1400.

[0081] Returning to block 1425, in response to determining that the voltage regulation command is not the raise command, the method 1400 proceeds to block 1435. In some embodiments, blocks 1425 and 1435 may be combined into a single block to determine whether the voltage regulation command is a raise command or a lower command simultaneously. At block 1435, the electronic processor 340 determines that the voltage regulation command is a lower command. At block 1440, the electronic processor 340 sends the lower command to adjust tap position to the regulator control 110A-110C and corresponding phase line that reduces the tap imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position and controls theDocket No. 214887-0016-W001 regulator control 110A-1 IOC associated with the respective tap changer that is set to the highest tap position based on the lower command to reduce the tap position imbalance. The method 1400 then proceeds to block 1445.

[0082] FIG. 12 is a flowchart illustrating a method 1500 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1500 is a fifth control algorithm of the plurality of control algorithms corresponding to the “Average Independent” control method. The method 1500 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1500 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0083] At block 1505, the electronic processor 340 receives a first set of data associated with the first phase line, a second set of data associated with the second phase line, and a third set of data associated with the third phase line. The electronic controller 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set of data, and a compensated voltage of the third phase line based on the third set of data. At block 1510, the electronic processor 340 determines an average compensated voltage of the three- phase power system based on the compensated voltage of the first phase line, the compensated voltage of the second phase line, and the compensated voltage of the third phase line. At block 1515, the electronic processor 340 transmits (e.g., sends) the control signal (FIG. 3) including the average compensated voltage to the first regulator control 110A, the second regulator control HOB, and the third regulator control 110C. At block 1520, the first regulator control 110A independently controls the first tap changer (via the tap change motor 325 A), the second regulator control HOB independently controls the second tap changer (via the tap change motor 325B), and the third regulator control 110C independently controls the third tap changer (via the tap change motor 325C) based onDocket No. 214887-0016-W001 the average compensated voltage transmitted from the electronic processor 340 of the first regulator control 110 A.

[0084] FIG. 13 is a flowchart illustrating a method 1600 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1600 is a sixth control algorithm of the plurality of control algorithms corresponding to the “Independent Min Tap Imbalance” control method. The method 1600 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1600 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0085] At block 1605, the electronic processor 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set of data, and a compensated voltage of the third phase line based on the third set of data. The electronic controller 340 also determines whether the compensated voltage of the first phase line, the compensated voltage of the second phase line, and the compensated voltage of the third phase line are all within band of the target bandcenter (e.g., the setpoint) for the three-phase power system. In response to determining that any of the compensated voltages of the phase lines are out of band, the method 1600 proceeds to block 1610. At block 1610, the regulator controls 110A-110C return to independent operation. For example, each of the regulator controls 110A-110C regulate voltage of the respective phase line independently.

[0086] In response to determining that all of the compensated voltages of the phase lines are within band, the method 1600 proceeds to block 1615. At block 1615, the electronic processor 340 calculates whether adjusting a tap position of any of the tap changers will decrease the tap imbalance and maintain the compensated voltages in-band. For example, the electronic processor 340 determines a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the second tapDocket No. 214887-0016-W001 changer and determines an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer. The electronic processor 340 determines the tap imbalance based on the tap positions and determines whether adjusting tap position will decrease the tap imbalance while maintaining each voltage of the phase lines within band. The electronic processor 340 also determines a voltage regulation command based on the average tap position or the tap imbalance.

[0087] In response to calculating that adjusting tap position will decrease tap imbalance, the method 1600 proceeds to block 1620. At block 1620, the electronic processor 340 determines whether the voltage regulation command is a raise command. In response to determining that the voltage regulation command is a raise command, the electronic processor 340 proceeds to block 1625. At block 1625, the electronic processor 340 sends the control signal including the raise command to the regulator control 110A- 110C and corresponding phase line that will reduce (e.g., minimize) the tap imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position and transmits the control signal including the raise command to the regulator control 110A-110C associated with the respective tap changer that is set to the lowest tap position to adjust the tap changer to reduce the tap imbalance. The method 1600 then proceeds to block 1640 to continue regulating voltage of the three-phase power system via the method 1600.

[0088] Returning to block 1620, in response to determining that the voltage regulation command is not the raise command, the method 1600 proceeds to block 1630. In some embodiments, blocks 1620 and 1630 may be combined into a single block to determine whether the voltage regulation command is a raise command or a lower command simultaneously. At block 1630, the electronic processor 340 determines that the voltage regulation command is a lower command. At block 1635, the electronic processor 340 sends the control signal including the lower command to the regulator control 110A-110C and corresponding phase line that will reduce the tap imbalance. ForDocket No. 214887-0016-W001 example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position and transmits the control signal including the lower command to the regulator control 110A-110C associated with the respective tap changer that is set to the highest tap position to adjust the tap changer to reduce the tap imbalance. The method 1600 then proceeds to block 1640.

[0089] FIG. 14 is a flowchart illustrating a method 1700 of controlling the voltage regulator controls 110A-110C of the voltage regulator control system 100, according to some embodiments. For example, the method 1700 is a seventh control algorithm of the plurality of control algorithms corresponding to the “Independent Min Voltage Imbalance” control method. The method 1700 is described as being implemented using the electronic processor 340 of the first regulator control 110A. However, it should be understood that the method 1700 may be implemented using any electronic processor 340 or combination of electronic processors 340 of the regulator controls 110A-110C. Although illustrated as occurring sequentially, some of the steps may be performed in parallel.

[0090] At block 1705, the electronic processor 340 determines a compensated voltage of the first phase line based on the first set of data, a compensated voltage of the second phase line based on the second set of data, and a compensated voltage of the third phase line based on the third set of data. The electronic controller 340 also determines whether the compensated voltage of the first phase line, the compensated voltage of the second phase line, and the compensated voltage of the third phase line are all within band of the target bandcenter (e.g., the setpoint) for the three-phase power system. In response to determining that any of the compensated voltages of the phase lines are out of band, the method 1700 proceeds to block 1710. At block 1710, the electronic processor 340 continues regulating voltage of the three-phase power system based on the method 1700. For example, the method 1700 may return to block 1705.Docket No. 214887-0016-W001

[0091] In response to determining that all of the compensated voltages of the phase lines are within band, the method 1700 proceeds to block 1715. At block 1715, the electronic processor 340 calculates whether adjusting a tap position of any of the tap changers will decrease the voltage imbalance and maintain the compensated voltages in- band. For example, the electronic processor 340 determines a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the second tap changer and determines an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer. The electronic processor 340 determines the voltage imbalance based on the compensated voltages and determines whether adjusting tap position will decrease the voltage imbalance while maintaining each voltage of the phase lines within band. The electronic processor 340 also determines a voltage regulation command based on the compensated voltages or the voltage imbalance.

[0092] In response to calculating that adjusting tap position will decrease tap imbalance, the method 1700 proceeds to block 1720. At block 1720, the electronic processor 340 determines whether the voltage regulation command is a raise command. In response to determining that the voltage regulation command is a raise command, the electronic processor 340 proceeds to block 1725. At block 1725, the electronic processor 340 sends the control signal including the raise command to the regulator control 110A- 1 10C and corresponding phase line that will reduce (e g., minimize) the voltage imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance and transmits the control signal including the raise command to the regulator control 110A-110C associated with the respective tap changer that is set to the lowest tap position to adjust the tap changer to reduce the voltage imbalance. The method 1700 then proceeds to block 1740 to continue regulating voltage of the three-phase power system via the method 1700.

[0093] Returning to block 1720, in response to determining that the voltage regulation command is not the raise command, the method 1700 proceeds to block 1730.Docket No. 214887-0016-W001In some embodiments, blocks 1720 and 1730 may be combined into a single block to determine whether the voltage regulation command is a raise command or a lower command simultaneously. At block 1730, the electronic processor 340 determines that the voltage regulation command is a lower command. At block 1735, the electronic processor 340 sends the control signal including the lower command to the regulator control 110A-110C and corresponding phase line that will reduce the voltage imbalance. For example, the electronic processor 340 determines which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to reduce the voltage imbalance and transmits the control signal including the lower command to the regulator control 110A-110C associated with the respective tap changer that is set to the highest tap position to adjust the tap changer to reduce the voltage imbalance. The method 1700 then proceeds to block 1740.

[0094] FIG. 15 illustrates an exemplary voltage bandcenter setting (e.g., setpoint), according to some embodiments. The regulator controls 110A-110C, which respectively correspond to each phase line, are generally configured to operate in accordance with the same bandcenter voltage and bandwidth settings. For example, as shown in FIG. 15, the voltage regulator controls 110A-110C may be configured to operate in accordance with a bandcenter voltage of 120 V (normalized with voltage transformer secondary voltage) and a bandwidth of 3 V. For induction motor loads, NEMA MG1 provides guidance on the temperature increase of the motor for unbalance voltage supply voltages, as even small voltage imbalances can result in large current imbalances flowing through the phase lines. For example, a voltage imbalance of 3.5 % across phase lines can may result 25% temperature increases in large loads, such as polyphase induction motors.

[0095] Various methods, such as control methods described herein, for regulating system voltage may be used to reduce voltage imbalances occurring within the three- phase power system. However, some voltage regulation methods used for controlling the tap positions are ineffective in accounting for a source voltage imbalance that requires the regulator controls 110A-110C to be at different tap positions to obtain balanced three- phase voltages. Also, if the load on each phase line is not balanced and the line dropDocket No. 214887-0016-W001 compensation is used to calculate the load voltage down the feeder using the load current measurement and the line impedance, the regulator controls 110A-1 IOC should be at different taps to obtain balanced voltages. This may be difficult when a voltage regulation method that sets the respective phase taps to the same positions is used.

[0096] FIG. 16 illustrates a block diagram 1900 of an exemplary voltage regulator control, according to some embodiments. The block diagram 1900 is an example hardware architecture that may be used to implement one or more of the voltage regulation methods described herein. It should be understood that the hardware architecture illustrated in FIG. 16 is provided merely as an example and is not intended to limit the scope of the multi-phase voltage regulation methods described herein in any way. As shown, the hardware architecture includes a computing module having a processor (CPU) that is coupled to a secure flash bootloader, secure dynamic random access memory (SDRAM), and static random access memory (SRAM). The computing module is connected to additional storage components including an external storage card, data storage, and program flash storage.

[0097] The hardware architecture further includes a power supply and various communication components that are connected to the computing module. For example, the communication components include first and second universal asynchronous receiver-transmitters (UART), first and second ethemet ports, and a universal serial bus (USB). Furthermore, the hardware architecture includes an ADC for converting analog inputs to the computing module, EEPROM for storing current settings of the system, and a digital input / output interface.

[0098] Example 1. A control system for a multi -phase power system including a first phase line, a second phase line, and a third phase line, the control system comprising: a plurality of regulator controls including: a first regulator control configured to control a first tap changer associated with the first phase line; a second regulator control configured to control a second tap changer associated with the second phase line; a third regulator control configured to control a third tap changer associated with the third phaseDocket No. 214887-0016-W001 line; and a peer-to-peer communication link between the first regulator control, the second regulator control, and the third regulator control; the first regulator control including a first electronic processor configured to: determine a first set of data associated with the first phase line; receive, via the peer-to-peer communication link, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; select a control algorithm from a plurality of control algorithms; transmit, via the peer-to- peer communication link, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; and control the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data; the second regulator control including a second electronic processor configured to control the second tap changer based on the control signal; and the third regulator control including a third electronic processor configured to control the third tap changer based on the control signal.

[0099] Example 2. The control system of example 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data; determine a voltage regulation command based on the voltage of the first phase line; in response to the voltage regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer corresponding to the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer corresponding to the lower command.

[0100] Example 3. The control system of example 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same directionDocket No. 214887-0016-W001 for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer based on the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer based on the lower command.

[0101] Example 4. The control system of example 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; determine which of the first tap changer, the second tap changer, and the third tap changer corresponds to the voltage furthest away from the average voltage; control the first tap changer according to the voltage regulation command when the first tap changer is the furthest away from the average voltage; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average voltage; and transmit the controlDocket No. 214887-0016-W001 signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average voltage.

[0102] Example 5. The control system of example 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

[0103] Example 6. The control system of example 1, wherein the first electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and aDocket No. 214887-0016-W001 voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and transmit the control signal including the average voltage to the second regulator control and the third regulator control, wherein the second electronic processor independently controls the second tap changer and the third electronic processor independently controls the third tap changer based on the average voltage.

[0104] Example 7. The control system of example 1, wherein the first electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the third tap changer; determine an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer; determine whether adjusting tap position will decrease a tap imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the tap imbalance: determine a voltage regulation command based on the average tap position; control the first tap changer according to the voltage regulation command when the first tap changer is set to furthest away from the average tap position; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is set to furthest away from the average tap position; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is set to furthest away from the average tap position.Docket No. 214887-0016-W001

[0105] Example 8. The control system of example 1, wherein the first electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine whether adjusting a tap position will decrease a voltage imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the voltage imbalance: determine a voltage regulation command based on the voltage imbalance; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position to decrease the voltage imbalance; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position to decrease the voltage imbalance; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position to decrease the voltage imbalance; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to decrease the voltage imbalance; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.Docket No. 214887-0016-W001

[0106] Example 9. The control system of examples 1-8, wherein data signals and control signals are exchanged between the first regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

[0107] Example 10. The control system of example 9, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.

[0108] Example 11. A regulator control for a first tap changer of a first phase line of a multi-phase power system including the first phase line, a second phase line, and a third phase line, the regulator control comprising: a communication module configured to communicate with a second regulator control for a second tap changer of the second phase line and a third regulator control for a third tap changer of the third phase line via a peer-to-peer communication link; and an electronic processor electrically coupled to the communication module and configured to: determine a first set of data associated with the first phase line; receive, via the communication module, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; select a control algorithm from a plurality of control algorithms; transmit, via the communication module, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; and control the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data.

[0109] Example 12. The regulator control of example 11, wherein the electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data; determine a voltage regulation command based on the voltage of the first phase line; in response to the voltageDocket No. 214887-0016-W001 regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer according to the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer according to the lower command.

[0110] Example 13. The regulator control of example 11, wherein the electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer according to the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer according to the lower command.

[0111] Example 14. The regulator control of example 11, wherein electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage ofDocket No. 214887-0016-W001 the third phase line; determine a voltage regulation command based on the average voltage; determine which of the first tap changer, the second tap changer, and the third tap changer corresponds to the voltage furthest away from the average voltage; control the first tap changer according to the voltage regulation command when the first tap changer is the furthest away from the average voltage; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average voltage; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average voltage.

[0112] Example 15. The regulator control of example 11, wherein the electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit theDocket No. 214887-0016-W001 control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

[0113] Example 16. The regulator control of example 11, wherein the electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and transmit the control signal including the average voltage to the second regulator control and the third regulator control.

[0114] Example 17. The regulator control of example 11, wherein the electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the third tap changer; determine an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer; determine whether adjusting tap position will decrease a tap imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the tap imbalance: determine a voltage regulation command based on the average tap position; control the first tap changer according to the voltage regulation command when the first tap changerDocket No. 214887-0016-W001 is furthest away from the average tap position; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average tap position; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average tap position.

[0115] Example 18. The regulator control of example 11, wherein the electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine whether adjusting a tap position will decrease a voltage imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and in response to determining that adjusting the tap position will decrease the voltage imbalance: determine a voltage regulation command based on the voltage imbalance; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position to decrease the voltage imbalance; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position to decrease the voltage imbalance; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position to decrease the voltage imbalance; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to decrease the voltage imbalance; control the first tap changer according toDocket No. 214887-0016-W001 the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

[0116] Example 19. The regulator control of examples 11-19, wherein data signals and control signals are exchanged between the regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

[0117] Example 20. The regulator control of example 19, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.

[0118] Example 21. The regulator control of example 20, wherein the data signals are exchanged over a data port of the regulator control and the control signals are exchanged over a signal port of the regulator control.

[0119] Example 22. A regulator control for a first tap changer of a first phase line of a multi-phase power system including the first phase line, a second phase line, and a third phase line, the regulator control comprising: a communication module configured to communicate with a second regulator control for a second tap changer of the second phase line and a third regulator control for a third tap changer of the third phase line via a peer-to-peer communication link; and an electronic processor electrically coupled to the communication module and configured to: determine a first set of data associated with the first phase line; transmit, via the communication module, the first set of data to one of the second regulator control and the third regulator control; receive, via the communication module, a control signal from the one of the second regulator control and the third regulator control; and control the first tap changer based on the control signal.Docket No. 214887-0016-W001

[0120] Example 23. The regulator control of example 22, wherein data signals and control signals are exchanged between the regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

[0121] Example 24. The regulator control of example 23, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.

[0122] Example 25. The regulator control of example 24, wherein the data signals are exchanged over a data port of the regulator control and the control signals are exchanged over a signal port of the regulator control.

[0123] Example 26. A method for multi-phase regulation using single-phase control system for a multi-phase power system including a first phase line, a second phase line, and a third phase line, the single-phase control system including a first regulator control for a first tap changer of the first phase line, a second regulator control for a second tap changer of the second phase line, and a third regulator control for a third tap changer of the third phase line, the single-phase control system also including a peer-to-peer communication link between the first regulator control, the second regulator control, and the third regulator control, the method comprising: determining, at the first regulator control, a first set of data associated with the first phase line; receiving, at the first regulator control via the peer-to-peer communication link, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; selecting, at the first regulator control, a control algorithm from a plurality of control algorithms; transmitting, via the peer-to-peer communication link, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; controlling, using a first electronic processor of the first regulator control, the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data; controlling, using a secondDocket No. 214887-0016-W001 electronic processor of the second regulator control, the second tap changer based on the control signal; and controlling, using a third electronic processor of the third regulator control, the third tap changer based on the control signal.

[0124] Example 27. The method of example 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data; and determining a voltage regulation command based on the voltage of the first phase line, wherein the control signal includes the voltage regulation command.

[0125] Example 28. The method of example 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and determining a voltage regulation command based on the average voltage, wherein the control signal includes the voltage regulation command.

[0126] Example 29. The method of example 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determining aDocket No. 214887-0016-W001 voltage regulation command based on the average voltage; determining which of the first tap changer, the second tap changer, and the third tap changer corresponds to the voltage furthest away from the average voltage; controlling, using the first electronic processor, the first tap changer according to the voltage regulation command when the first tap changer is the furthest away from the average voltage; transmitting the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average voltage; and transmitting the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average voltage.

[0127] Example 30. The method of example 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determining a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position; controlling, using the first electronic processor, the first tap changer according to the raise command when the first tap changer is set to the lowest tap position; transmitting, via the peer-to-peer communication link, the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position; and transmitting, via the peer-to-peer communication link, the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position; and in response to the voltage regulation command being a lower command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position; controlling, using the first electronicDocket No. 214887-0016-W001 processor, the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmitting, via the peer-to-peer communication link, the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmitting, via the peer-to-peer communication link, the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

[0128] Example 31. The method of example 26, further comprising: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; transmitting the control signal including the average voltage to the second regulator control and the third regulator control; independently controlling, using the second electronic processor, the second tap changer based on the control signal; and independently controlling, using the third electronic processor, the third tap changer based on the control signal.

[0129] Example 32. The method of example 26, further comprising: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determining a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the third tap changer; determining an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer; determining whether adjusting tap position will decrease a tap imbalance whileDocket No. 214887-0016-W001 maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the tap imbalance: determining a voltage regulation command based on the average tap position; controlling, using the first electronic processor, the first tap changer according to the voltage regulation command when the first tap changer is set to furthest away from the average tap position; transmitting, via the peer-to-peer communication link, the control signal including the voltage regulation command to the second regulator control when the second tap changer is set to furthest away from the average tap position; and transmitting, via the peer-to- peer communication link, the control signal including the voltage regulation command to the third regulator control when the third tap changer is set to furthest away from the average tap position.

[0130] Example 33. The method of example 26, further comprising: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determining whether adjusting a tap position will decrease a voltage imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the voltage imbalance: determining a voltage regulation command based on the voltage imbalance; in response to the voltage regulation command being a raise command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance; controlling, using the first electronic processor, the first tap changer according to the raise command when the first tap changer is set to the lowest tap position to decrease the voltage imbalance; transmitting, via theDocket No. 214887-0016-W001 peer-to-peer communication link, the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position to decrease the voltage imbalance; and transmitting, via the peer-to-peer communication link, the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position to decrease the voltage imbalance; and in response to the voltage regulation command being a lower command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to decrease the voltage imbalance; controlling, using the first electronic processor, the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmitting, via the peer-to-peer communication link, the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmitting, via the peer-to-peer communication link, the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

[0131] Example 34. The method of claim of examples 26-33, wherein data signals and control signals are exchanged between the first regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

[0132] Example 35. The method of example 34, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer- to-peer communication link.In the foregoing specification, specific examples, features, and aspects have been described. However, one of ordinary skill in the art appreciates that various modifications and changes can be made without departing from the scope of the invention as set forth in the claims below. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of present teachings.Docket No. 214887-0016-W001

[0133] The benefits, advantages, solutions to problems, and any element(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential features or elements of any or all the claims. The invention is defined solely by the appended claims including any amendments made during the pendency of this application and all equivalents of those claims as issued.

[0134] Moreover in this document, relational terms such as first and second, top and bottom, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms “comprises,” “comprising,” “has,” “having,” “includes,” “including,” “contains,” “containing” or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, has, includes, contains a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by “comprises .. . a,” “has . . . a,” “includes .. . a,” or “contains ... a” does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises, has, includes, contains the element. The terms “a” and “an” are defined as one or more unless explicitly stated otherwise herein. The terms “substantially,” “essentially,” “approximately,” “about” or any other version thereof, are defined as being close to as understood by one of ordinary skill in the art, and in one non-limiting embodiment the term is defined to be within 10%, in another embodiment within 5%, in another embodiment within 1% and in another embodiment within 0.5%. The term “coupled” as used herein is defined as connected, although not necessarily directly and not necessarily mechanically. A device or structure that is “configured” in a certain way is configured in at least that way, but may also be configured in ways that are not listed.

[0135] It will be appreciated that some embodiments may be comprised of one or more generic or specialized processors (or “processing devices”) such asDocket No. 214887-0016-W001 microprocessors, digital signal processors, customized processors and field programmable gate arrays (FPGAs) and unique stored program instructions (including both software and firmware) that control the one or more processors to implement, in conjunction with certain non-processor circuits, some, most, or all of the functions of the method and / or apparatus described herein. Alternatively, some or all functions could be implemented by a state machine that has no stored program instructions, or in one or more application specific integrated circuits (ASICs), in which each function or some combinations of certain of the functions are implemented as custom logic. Of course, a combination of the two approaches could be used.

[0136] Moreover, an embodiment can be implemented as a computer-readable storage medium having computer readable code stored thereon for programming a computer (e.g., comprising a processor) to perform a method as described and claimed herein. Examples of such computer-readable storage mediums include, but are not limited to, a hard disk, a CD-ROM, an optical storage device, a magnetic storage device, a ROM (Read Only Memory), a PROM (Programmable Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory) and a Flash memory. Further, it is expected that one of ordinary skill, notwithstanding possibly significant effort and many design choices motivated by, for example, available time, current technology, and economic considerations, when guided by the concepts and principles disclosed herein will be readily capable of generating such software instructions and programs and ICs with minimal experimentation.

[0137] The Abstract of the Disclosure is provided to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in various embodiments for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim.Docket No. 214887-0016-W001Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separately claimed subject matter.

Claims

Docket No. 214887-0016-US02CLAIMSWhat is claimed is:

1. A control system for a multi-phase power system including a first phase line, a second phase line, and a third phase line, the control system comprising: a plurality of regulator controls including: a first regulator control configured to control a first tap changer associated with the first phase line; a second regulator control configured to control a second tap changer associated with the second phase line; a third regulator control configured to control a third tap changer associated with the third phase line; and a peer-to-peer communication link between the first regulator control, the second regulator control, and the third regulator control; the first regulator control including a first electronic processor configured to: determine a first set of data associated with the first phase line; receive, via the peer-to-peer communication link, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; select a control algorithm from a plurality of control algorithms; transmit, via the peer-to-peer communication link, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; and control the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data; the second regulator control including a second electronic processor configured to control the second tap changer based on the control signal; and the third regulator control including a third electronic processor configured to control the third tap changer based on the control signal.Docket No. 214887-0016-US022. The control system of claim 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data; determine a voltage regulation command based on the voltage of the first phase line; in response to the voltage regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer corresponding to the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer corresponding to the lower command.

3. The control system of claim 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command:Docket No. 214887-0016-US02 transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer based on the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer based on the lower command.

4. The control system of claim 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; determine which of the first tap changer, the second tap changer, and the third tap changer corresponds to the voltage furthest away from the average voltage; control the first tap changer according to the voltage regulation command when the first tap changer is the furthest away from the average voltage; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average voltage; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average voltage.Docket No. 214887-0016-US025. The control system of claim 1, wherein the first electronic processor is further configured to: determine whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; andDocket No. 214887-0016-US02 transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

6. The control system of claim 1, wherein the first electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and transmit the control signal including the average voltage to the second regulator control and the third regulator control, wherein the second electronic processor independently controls the second tap changer and the third electronic processor independently controls the third tap changer based on the average voltage.

7. The control system of claim 1, wherein the first electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multiphase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the third tap changer;Docket No. 214887-0016-US02 determine an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer; determine whether adjusting tap position will decrease a tap imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the tap imbalance: determine a voltage regulation command based on the average tap position; control the first tap changer according to the voltage regulation command when the first tap changer is set to furthest away from the average tap position; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is set to furthest away from the average tap position; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is set to furthest away from the average tap position.

8. The control system of claim 1, wherein the first electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multiphase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band:Docket No. 214887-0016-US02 determine whether adjusting a tap position will decrease a voltage imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the voltage imbalance: determine a voltage regulation command based on the voltage imbalance; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position to decrease the voltage imbalance; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position to decrease the voltage imbalance; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position to decrease the voltage imbalance; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to decrease the voltage imbalance; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.Docket No. 214887-0016-US029. The control system of claim 1, wherein data signals and control signals are exchanged between the first regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

10. The control system of claim 9, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.

11. A regulator control for a first tap changer of a first phase line of a multi-phase power system including the first phase line, a second phase line, and a third phase line, the regulator control comprising: a communication module configured to communicate with a second regulator control for a second tap changer of the second phase line and a third regulator control for a third tap changer of the third phase line via a peer-to-peer communication link; and an electronic processor electrically coupled to the communication module and configured to: determine a first set of data associated with the first phase line; receive, via the communication module, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; select a control algorithm from a plurality of control algorithms; transmit, via the communication module, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; and control the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data.

12. The regulator control of claim 11, wherein the electronic processor is further configured to:Docket No. 214887-0016-US02 determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data; determine a voltage regulation command based on the voltage of the first phase line; in response to the voltage regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer according to the raise command; and in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer according to the lower command.

13. The regulator control of claim 11, wherein the electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: transmit the control signal including the raise command to the second regulator control and the third regulator control; and control the first tap changer according to the raise command; andDocket No. 214887-0016-US02 in response to the voltage regulation command being a lower command: transmit the control signal including the lower command to the second regulator control and the third regulator control; and control the first tap changer according to the lower command.

14. The regulator control of claim 11, wherein electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; determine which of the first tap changer, the second tap changer, and the third tap changer corresponds to the voltage furthest away from the average voltage; control the first tap changer according to the voltage regulation command when the first tap changer is the furthest away from the average voltage; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average voltage; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average voltage.

15. The regulator control of claim 11, wherein the electronic processor is further configured to: determine whether power flow is in a same direction for the regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction:Docket No. 214887-0016-US02 determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determine a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position; control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

16. The regulator control of claim 11, wherein the electronic processor is further configured to:Docket No. 214887-0016-US02 determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and transmit the control signal including the average voltage to the second regulator control and the third regulator control.

17. The regulator control of claim 11, wherein the electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multiphase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the third tap changer; determine an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer; determine whether adjusting tap position will decrease a tap imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the tap imbalance: determine a voltage regulation command based on the average tap position;Docket No. 214887-0016-US02 control the first tap changer according to the voltage regulation command when the first tap changer is furthest away from the average tap position; transmit the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average tap position; and transmit the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average tap position.

18. The regulator control of claim 11, wherein the electronic processor is further configured to: determine a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determine whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multiphase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determine whether adjusting a tap position will decrease a voltage imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and in response to determining that adjusting the tap position will decrease the voltage imbalance: determine a voltage regulation command based on the voltage imbalance; in response to the voltage regulation command being a raise command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance;Docket No. 214887-0016-US02 control the first tap changer according to the raise command when the first tap changer is set to the lowest tap position to decrease the voltage imbalance; transmit the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position to decrease the voltage imbalance; and transmit the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position to decrease the voltage imbalance; and in response to the voltage regulation command being a lower command: determine which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to decrease the voltage imbalance; control the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmit the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmit the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

19. The regulator control of claim 11, wherein data signals and control signals are exchanged between the regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

20. The regulator control of claim 19, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.Docket No. 214887-0016-US0221 . The regulator control of claim 20, wherein the data signals are exchanged over a data port of the regulator control and the control signals are exchanged over a signal port of the regulator control.

22. A regulator control for a first tap changer of a first phase line of a multi-phase power system including the first phase line, a second phase line, and a third phase line, the regulator control comprising: a communication module configured to communicate with a second regulator control for a second tap changer of the second phase line and a third regulator control for a third tap changer of the third phase line via a peer-to-peer communication link; and an electronic processor electrically coupled to the communication module and configured to: determine a first set of data associated with the first phase line; transmit, via the communication module, the first set of data to one of the second regulator control and the third regulator control; receive, via the communication module, a control signal from the one of the second regulator control and the third regulator control; and control the first tap changer based on the control signal.

23. The regulator control of claim 22, wherein data signals and control signals are exchanged between the regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

24. The regulator control of claim 23, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.

25. The regulator control of claim 24, wherein the data signals are exchanged over a data port of the regulator control and the control signals are exchanged over a signal port of the regulator control.Docket No. 214887-0016-US0226. A method for multi-phase regulation using single-phase control system for a multi-phase power system including a first phase line, a second phase line, and a third phase line, the singlephase control system including a first regulator control for a first tap changer of the first phase line, a second regulator control for a second tap changer of the second phase line, and a third regulator control for a third tap changer of the third phase line, the single-phase control system also including a peer-to-peer communication link between the first regulator control, the second regulator control, and the third regulator control, the method comprising: determining, at the first regulator control, a first set of data associated with the first phase line; receiving, at the first regulator control via the peer-to-peer communication link, a second set of data from the second regulator control associated with the second phase line and a third set of data from the third regulator control associated with the third phase line; selecting, at the first regulator control, a control algorithm from a plurality of control algorithms; transmitting, via the peer-to-peer communication link, a control signal to the second regulator control and the third regulator control based on the control algorithm, the first set of data, the second set of data, and the third set of data; controlling, using a first electronic processor of the first regulator control, the first tap changer based on the control algorithm, the first set of data, the second set of data, and the third set of data; controlling, using a second electronic processor of the second regulator control, the second tap changer based on the control signal; and controlling, using a third electronic processor of the third regulator control, the third tap changer based on the control signal.

27. The method of claim 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data; andDocket No. 214887-0016-US02 determining a voltage regulation command based on the voltage of the first phase line, wherein the control signal includes the voltage regulation command.

28. The method of claim 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; and determining a voltage regulation command based on the average voltage, wherein the control signal includes the voltage regulation command.

29. The method of claim 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determining a voltage regulation command based on the average voltage; determining which of the first tap changer, the second tap changer, and the third tap changer corresponds to the voltage furthest away from the average voltage;Docket No. 214887-0016-US02 controlling, using the first electronic processor, the first tap changer according to the voltage regulation command when the first tap changer is the furthest away from the average voltage; transmitting the control signal including the voltage regulation command to the second regulator control when the second tap changer is furthest away from the average voltage; and transmitting the control signal including the voltage regulation command to the third regulator control when the third tap changer is furthest away from the average voltage.

30. The method of claim 26, further comprising: determining whether power flow is in a same direction for the first regulator control, the second regulator control, and the third regulator control; and in response to determining that the power flow is in the same direction: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; determining a voltage regulation command based on the average voltage; in response to the voltage regulation command being a raise command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position; controlling, using the first electronic processor, the first tap changer according to the raise command when the first tap changer is set to the lowest tap position; transmitting, via the peer-to-peer communication link, the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position; andDocket No. 214887-0016-US02 transmitting, via the peer-to-peer communication link, the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position; and in response to the voltage regulation command being a lower command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position; controlling, using the first electronic processor, the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmitting, via the peer-to-peer communication link, the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmitting, via the peer-to-peer communication link, the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

31. The method of claim 26, further comprising: determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining an average voltage of the multi-phase power system based on the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line; transmitting the control signal including the average voltage to the second regulator control and the third regulator control; independently controlling, using the second electronic processor, the second tap changer based on the control signal; and independently controlling, using the third electronic processor, the third tap changer based on the control signal.

32. The method of claim 26, further comprising:Docket No. 214887-0016-US02 determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determining a tap position of the first tap changer, a tap position of the second tap changer, and a tap position of the third tap changer; determining an average tap position based on the tap position of the first tap changer, the tap position of the second tap changer, and the tap position of the third tap changer; determining whether adjusting tap position will decrease a tap imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the tap imbalance: determining a voltage regulation command based on the average tap position; controlling, using the first electronic processor, the first tap changer according to the voltage regulation command when the first tap changer is set to furthest away from the average tap position; transmitting, via the peer-to-peer communication link, the control signal including the voltage regulation command to the second regulator control when the second tap changer is set to furthest away from the average tap position; and transmitting, via the peer-to-peer communication link, the control signal including the voltage regulation command to the third regulator control when the third tap changer is set to furthest away from the average tap position.

33. The method of claim 26, further comprising:Docket No. 214887-0016-US02 determining a voltage of the first phase line based on the first set of data, a voltage of the second phase line based on the second set of data, and a voltage of the third phase line based on the third set of data; determining whether the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band of a target bandcenter for the multi-phase power system; and in response to determining that the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line are all within band: determining whether adjusting a tap position will decrease a voltage imbalance while maintaining the voltage of the first phase line, the voltage of the second phase line, and the voltage of the third phase line within band; and in response to determining that adjusting the tap position will decrease the voltage imbalance: determining a voltage regulation command based on the voltage imbalance; in response to the voltage regulation command being a raise command: determining which of the first tap changer, the second tap changer, and the third tap changer is set to a lowest tap position to decrease the voltage imbalance; controlling, using the first electronic processor, the first tap changer according to the raise command when the first tap changer is set to the lowest tap position to decrease the voltage imbalance; transmitting, via the peer-to-peer communication link, the control signal including the raise command to the second regulator control when the second tap changer is set to the lowest tap position to decrease the voltage imbalance; and transmitting, via the peer-to-peer communication link, the control signal including the raise command to the third regulator control when the third tap changer is set to the lowest tap position to decrease the voltage imbalance; and in response to the voltage regulation command being a lower command:Docket No. 214887-0016-US02 determining which of the first tap changer, the second tap changer, and the third tap changer is set to a highest tap position to decrease the voltage imbalance; controlling, using the first electronic processor, the first tap changer according to the lower command when the first tap changer is set to the highest tap position; transmitting, via the peer-to-peer communication link, the control signal including the lower command to the second regulator control when the second tap changer is set to the highest tap position; and transmitting, via the peer-to-peer communication link, the control signal including the lower command to the third regulator control when the third tap changer is set to the highest tap position.

34. The method of claim of claims 26, wherein data signals and control signals are exchanged between the first regulator control, the second regulator control, and the third regulator control using an internet protocol (IP) via the peer-to-peer communication link.

35. The method of claim 34, wherein the data signals and the control signals are exchanged using a user datagram protocol over an IP layer of the peer-to-peer communication link.

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