Dual-bus dual-SVG adaptive reactive power compensation control method, device, electronic equipment, and storage medium

Abstract

This application discloses a dual-busbar dual-SVG adaptive reactive power compensation control method, device, electronic equipment, and storage medium, applied to a dual-busbar power supply system with a first-section busbar and a second-section busbar. The first-section busbar is equipped with a #1 incoming power supply and a #1 SVG device, and the second-section busbar is equipped with a #2 incoming power supply and a #2 SVG device. A bus tie switch is installed between the two busbars. The system is equipped with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT). The method can achieve reactive power compensation control using two SVG devices on the two busbars under various power supply modes. The reactive power compensation control of the SVG devices in this application is independent of each other, eliminating the drawbacks of using master-slave control and fiber optic communication technology with two SVG devices, thereby improving the reliability and utilization rate of reactive power compensation of the two SVG devices.

Description

Technical Field

[0001] This application relates to the field of reactive power compensation technology in power systems, and in particular to a dual-bus dual-SVG adaptive reactive power compensation control method, device, electronic equipment, and storage medium. Background Technology

[0002] The double busbar connection, where two busbars are interconnected via a bus tie circuit breaker (referred to as bus tie), is the mainstream connection method for current medium and low voltage power distribution systems, industrial plant power supply, and power plant power supply systems. This connection method features the characteristics of being able to be switched on and off, and serving as backup for each other. It can achieve cross-section load switching through switching operations. Under single-section busbar faults or maintenance conditions, it can minimize the scope of power outages and ensure continuous power supply to important loads, significantly improving the power supply reliability, operational flexibility, and power supply continuity of the power distribution system.

[0003] To address power quality issues such as voltage fluctuations, low power factor, and reactive power surges during the operation of dual-bus systems, and to suppress reactive power disturbances, the industry commonly employs a compensation scheme that configures a Static Var Generator (SVG) on each of the two bus sections. The Static Var Generator, also known as a Static Synchronous Compensator (STATCOM), is a dynamic reactive power compensation device based on instantaneous reactive power theory and high-frequency power electronic control technology. Compared to traditional static compensation devices such as capacitors and reactors, it offers advantages such as fast response speed, high compensation accuracy, continuous and smooth reactive power adjustment, and adaptability to dynamic impact loads. It is currently a core device for managing dynamic reactive power and optimizing power quality in power distribution systems.

[0004] Dual-busbar power distribution systems operate under various conditions, including independent operation of dual power sources and parallel operation of two busbar sections via a single power source. The operating mode frequently switches due to grid dispatching, equipment maintenance, and fault handling. In these multi-condition switching scenarios, the two SVG devices configured on the two busbar sections are prone to problems such as mismatched compensation logic, chaotic reactive power calculation in different sections, and bidirectional reactive power coupling interference, leading to local overcompensation and undercompensation, severely impacting system voltage stability and reactive power compensation accuracy. Therefore, adapting to the full operating mode of dual-busbar systems, achieving independent and accurate compensation for each section of the two SVG devices, and eliminating cross-section reactive power interference are pressing technical challenges that need to be addressed in current dual-busbar dual-SVG power distribution systems.

[0005] Currently, there are relevant research and technology publications on reactive power collaborative compensation control schemes for dual-bus multi-SVG systems both domestically and internationally. Among them, Chinese patent CN206389119U discloses an SVG control system for multi-bus sections. This scheme acquires the bus tie switch status and bus current signal through a PLC module, and realizes master-slave control and parallel / independent operation switching of multiple SVG devices through fiber optic communication, which improves the operational adaptability and system stability of SVG devices to a certain extent.

[0006] However, existing mainstream dual-bus SVG compensation control schemes generally have inherent technical defects, and the aforementioned patented schemes cannot adapt to complex and ever-changing bus operating conditions. The specific defects are reflected in the following aspects:

[0007] First, existing technologies generally adopt a master-slave centralized control architecture, relying on the master unit to uniformly calculate the reactive power of the entire station and issue compensation commands to the slave units. The slave units have no independent calculation and operating condition judgment capabilities. Once the master unit fails, the calculation is abnormal, or the communication fails, the entire SVG compensation system will shut down. Its fault tolerance and operational reliability are extremely poor, and it cannot meet the needs of uninterrupted reactive power management for important loads.

[0008] Secondly, existing technologies require additional configuration of PLC acquisition modules and dedicated fiber optic communication links to achieve master-slave data interaction and command transmission. The numerous hardware devices and complex system architecture significantly increase equipment costs and construction and maintenance costs. At the same time, fiber optic communication is susceptible to electromagnetic interference on site, and there is a risk of communication packet loss and line breakage. Communication abnormalities will directly cause the slave SVG to exit compensation, resulting in system reactive power loss and voltage fluctuations.

[0009] Third, existing technologies lack dual-path sampling and adaptive data source switching logic for incoming current and bus tie current, making it impossible to accurately distinguish the independent reactive loads of the two bus sections. They can only achieve unified compensation for total reactive power across the entire station, failing to provide precise zoned management. Under parallel operation conditions with a single power source and two busbars, issues such as overlapping compensation from the two SVG units and mutual reactive power disturbances easily arise, resulting in low compensation accuracy and poor adaptability.

[0010] In summary, the dual-bus dual-SVG compensation control scheme in related technologies relies on master-slave communication and coordination, has high hardware costs, poor adaptability to operating conditions, is prone to reactive power interference under multiple operating conditions, and has low operational reliability. It cannot meet the requirements for precise reactive power compensation for flexible operation of dual buses under all operating conditions. Summary of the Invention

[0011] This application provides a dual-bus dual-SVG adaptive reactive power compensation control method, device, electronic equipment, and storage medium. It abandons the traditional master-slave control architecture and adopts control logic of dual SVG equal independent sampling, autonomous operating condition identification, and adaptive switching of sampling data source. It adapts to all power supply operation modes of dual buses, realizes independent and accurate reactive power compensation of the two bus sections, completely eliminates the problem of mutual interference of reactive power compensation of SVG devices under multiple operating conditions, and improves the power quality and operational reliability of the power distribution system.

[0012] The embodiments of this application adopt the following technical solutions:

[0013] In a first aspect, embodiments of this application provide a dual-busbar dual-SVG adaptive reactive power compensation control method, applied to a dual-busbar power supply system configured with a first-section busbar and a second-section busbar. The first-section busbar is configured with a #1 incoming power supply and a #1 SVG device, and the second-section busbar is configured with a #2 incoming power supply and a #2 SVG device. A bus tie switch is provided between the two busbars. The system is configured with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT). The method includes:

[0014] Each of the two SVG devices independently acquires the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, and the corresponding incoming line switch and bus tie switch status signals and transmits them to its own SVG controller;

[0015] Each SVG controller autonomously identifies the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2.

[0016] Each SVG controller adaptively switches the PT and CT sampling data sources required for reactive power calculation based on the current power supply mode, and independently calculates the reactive power of the corresponding bus section; and

[0017] Each of the two SVG devices independently outputs reactive power compensation current based on its own calculated reactive power in the section, realizing reactive power compensation in the dual-bus full-condition zone. The two SVG devices adopt a masterless peer-to-peer control architecture, and do not issue compensation commands to each other or perform power allocation.

[0018] In some embodiments, when the system is in a dual-power independent power supply mode, the control steps for closing the No. 1 incoming line switch, closing the No. 2 incoming line switch, and opening the bus tie switch are as follows:

[0019] Based on the switch status, the 1#SVG controller determines that the I-section bus is independently powered by the 1# power supply. It selects the 1# incoming line PT signal and the 1# incoming line CT signal as the calculation data source, calculates the reactive power QI1 of the I-section bus, and controls the 1#SVG device to output reactive power -QI1 to compensate the reactive power of the I-section bus separately.

[0020] The SVG controller determines that the II section bus is independently powered by the SVG power supply based on the switch status. It selects the PT signal and CT signal of the SVG input line as the calculation data source, calculates the reactive power QII1 of the II section bus, and controls the SVG device to output reactive power -QII1 to compensate the reactive power of the II section bus separately.

[0021] In some embodiments, when the system is in the mode of supplying power to two busbars via power supply #1, the control steps are as follows: #1 incoming switch is closed, #2 incoming switch is opened, and the bus tie switch is closed.

[0022] The SVG controller determines that both bus sections are powered by the SVG power supply based on the switch status. It calculates the total reactive power QI2 of the two bus sections using the PT signal and CT signal of the SVG input line, and calculates the independent reactive power QII2 of the bus section II using the PT signal and CT signal of the bus tie line. The independent reactive power QI2-QII2 of the bus section I is obtained by difference calculation. The SVG controller then controls the SVG device to output reactive power QII2-QI2 to compensate for the reactive power deficit of the bus section I.

[0023] The SVG controller #2 determines that the II section bus is powered by the #1 power supply via the bus tie switch based on the switch status. It selects the PT signal of the #2 incoming line and the CT signal of the bus tie as the calculation data source, calculates the reactive power QII2 of the II section bus, and controls the #2 SVG device to output reactive power -QII2 to independently compensate for the reactive power of the II section bus.

[0024] In some embodiments, when the system is in the mode of supplying power to two busbars via power supply #2, the control steps are as follows: The #2 incoming line switch is closed, the #1 incoming line switch is opened, and the bus tie switch is closed.

[0025] The #2 SVG controller determines that both bus sections are powered by the #2 power supply based on the switch status. It calculates the total reactive power QII3 of the two bus sections using the #2 incoming PT signal and the #2 incoming CT signal, and calculates the independent reactive power QI3 of the I bus section using the #2 incoming PT signal and the bus tie CT signal. The independent reactive power QII3-QI3 of the II bus section is obtained through difference calculation. The #2 SVG device is then controlled to output reactive power QI3-QII3 to compensate for the reactive power deficiency of the II bus section.

[0026] The 1#SVG controller determines that the I-section busbar is powered by the 2# power supply via the bus tie switch based on the switch status. It selects the PT signal of the 1# incoming line and the CT signal of the bus tie as the calculation data source, calculates the reactive power QI3 of the I-section busbar, and controls the 1#SVG device to output reactive power -QI3 to independently compensate for the reactive power of the I-section busbar.

[0027] In some embodiments, the hardware acquisition architecture of SVG device 1 and SVG device 2 is completely symmetrical, and each is independently configured with a CT sampling module, a PT sampling module, and a status sampling module; both SVG devices synchronously acquire the bus tie CT signal and the bus tie switch status signal, providing a sampling basis for full-condition power supply mode recognition and adaptive data source switching.

[0028] In some embodiments, SVG device 1 and SVG device 2 are peer independent control units. There is no master-slave hierarchy between them. They do not issue compensation commands to each other or perform power allocation. Each device autonomously completes the entire process of operating condition determination, power calculation, and reactive power compensation output.

[0029] In some embodiments, the adaptive switching process of the data source does not require manual intervention. The system automatically matches the corresponding PT and CT sampling combination according to the real-time opening and closing status of the incoming switch and the bus tie switch, adapting to all power supply scenarios of dual busbar operation and single power supply parallel operation, and realizing seamless switching compensation under all operating conditions.

[0030] Secondly, this application also provides a dual-busbar dual-SVG adaptive reactive power compensation control device, applied to a dual-busbar power supply system with a first-section busbar and a second-section busbar. The first-section busbar is equipped with a #1 incoming power supply and a #1 SVG device, and the second-section busbar is equipped with a #2 incoming power supply and a #2 SVG device. A bus tie switch is provided between the two busbars. The system is equipped with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT). The device includes:

[0031] The synchronous signal acquisition module for the two SVG devices is used to allow each of the two SVG devices to independently acquire the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, as well as the corresponding incoming line switch and bus tie switch status signals and transmit them to their own SVG controller.

[0032] The operating condition autonomous determination module is used by each SVG controller to autonomously identify the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2.

[0033] The adaptive switching calculation data source module is used by each SVG controller to adaptively switch the PT and CT sampling data sources required for reactive power calculation according to the current power supply mode, and independently calculate the reactive power of the corresponding bus section; and

[0034] The autonomous reactive power compensation module is used by two SVG devices to independently output reactive power compensation current according to their own calculated reactive power in the section, so as to realize the dual bus full-condition zone reactive power compensation. The two SVG devices adopt a masterless peer control architecture, and do not issue compensation commands to each other or perform power allocation.

[0035] Thirdly, embodiments of this application also provide an electronic device, including: a processor; and a memory arranged to store computer-executable instructions, which, when executed, cause the processor to perform the above-described method.

[0036] Fourthly, embodiments of this application also provide a computer-readable storage medium that stores one or more programs, which, when executed by an electronic device including multiple applications, cause the electronic device to perform the above-described method.

[0037] The above-mentioned at least one technical solution adopted in the embodiments of this application can achieve the following beneficial effects: The dual-bus dual-SVG adaptive reactive power compensation control method in the embodiments of this application addresses the technical defects of existing dual-bus dual-SVG compensation schemes, such as reliance on master-slave centralized control, poor communication reliability, high hardware cost, insufficient adaptability to multiple operating conditions, cross-segment reactive power mutual interference, and low compensation accuracy. By adopting the core technical solutions of dual-SVG masterless peer-to-peer independent control architecture, multi-signal synchronous acquisition, autonomous power supply mode identification, adaptive switching of sampling data source, and independent reactive power calculation and compensation in different zones, the following significant beneficial technical effects are achieved:

[0038] First, this embodiment completely abandons the traditional SVG master-slave collaborative control mode, eliminating the hierarchical control logic of unified calculation by the master and passive execution by the slave. The two SVG devices are equal and independent control units, which do not issue compensation commands to each other or perform power allocation. Each device independently completes the entire process of signal acquisition, operating condition determination, reactive power calculation, and compensation output. This effectively solves the problem of the entire compensation system shutting down due to master failure, abnormal operation, or communication interruption in the traditional master-slave architecture. It eliminates the need for PLC acquisition modules and dedicated fiber optic communication links, greatly simplifying the system hardware architecture and reducing equipment procurement, construction, and maintenance costs. At the same time, it completely avoids the risk of compensation failure caused by communication interference, disconnection, and packet loss, greatly improving the operational reliability and fault tolerance of the reactive power compensation system.

[0039] Secondly, this embodiment relies on the incoming current transformer, bus tie current transformer, and incoming voltage transformer to form a multi-dimensional sampling system. Two SVG units synchronously collect incoming and bus tie voltage and current signals as well as switch status signals, which can accurately identify all operating conditions, such as independent power supply from dual power sources and parallel power supply from a single power source to two bus sections. Compared with the shortcomings of existing technologies that can only collect single incoming signals and cannot distinguish segmented reactive loads, this embodiment uses PT and CT sampling data sources for reactive power calculation that adaptively switch according to the operating status, accurately separating the independent reactive loads of the two bus sections, and realizing refined calculation of reactive power in the bus section. This fundamentally solves the technical problems of overlapping compensation, reactive power coupling disturbance, overcompensation, or undercompensation of the two SVG units under parallel operation conditions, and greatly improves the accuracy and adaptability of reactive power compensation.

[0040] Finally, the embodiments of this application can adaptively adapt to all conventional power supply operation modes of a dual-busbar power distribution system, achieving seamless switching of compensation logic under different operating conditions without manual intervention. It also caters to the reactive power compensation needs of all scenarios, including independent operation of the dual buses and parallel operation of a single power source across sections. Through independent and precise compensation of the two busbar sections, the busbar operating voltage is effectively stabilized, the system power factor is optimized, and dynamic reactive power surges are suppressed. This completely eliminates the reactive power interference between SVG devices during multi-condition switching, significantly improving the power quality of the dual-busbar power distribution system and ensuring the stability, flexibility, and continuity of power supply. It is suitable for various application scenarios with high power supply reliability requirements, such as industrial power distribution and plant power. Attached Figure Description

[0041] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0042] Figure 1 This is a flowchart illustrating the dual-bus dual-SVG adaptive reactive power compensation control method in the embodiments of this application.

[0043] Figure 2 This is a typical main circuit diagram of the dual-bus dual-SVG adaptive reactive power compensation control method in the embodiments of this application, in which two bus sections use two SVG devices;

[0044] Figure 3 This is a schematic diagram of the acquisition principle of CT signal, PT signal and switch status of device #1 in the dual-bus dual-SVG adaptive reactive power compensation control method in the embodiments of this application.

[0045] Figure 4 This is a schematic diagram of the acquisition principle of CT signal, PT signal and switch status of SVG device #2 in the dual-bus dual-SVG adaptive reactive power compensation control method in the embodiments of this application.

[0046] Figure 5 This is a schematic diagram of the structure of the dual-bus dual-SVG adaptive reactive power compensation control device in the embodiments of this application;

[0047] Figure 6 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0050] This application provides a dual-bus dual-SVG adaptive reactive power compensation control method, such as... Figure 1 The diagram shows a flowchart of the dual-bus dual-SVG adaptive reactive power compensation control method in this application embodiment. This application embodiment is applied to a dual-bus power supply system with a first-section bus and a second-section bus. The first-section bus is equipped with a #1 incoming power supply and a #1 SVG device, and the second-section bus is equipped with a #2 incoming power supply and a #2 SVG device. A bus tie switch is set between the two bus sections. The system is equipped with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT). The method includes at least the following steps S110 to S140:

[0051] In step S110, each of the two SVG devices independently acquires the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, and the corresponding incoming line switch and bus tie switch status signals and transmits them to its own SVG controller.

[0052] The two SVG devices acquire signals synchronously: SVG device #1 acquires the CT signal of incoming line #1 and the CT signal of bus tie through its built-in CT sampling module, acquires the PT signal of incoming line #1 through its PT sampling module, and acquires the opening and closing status signals of incoming line switch #1 and bus tie switch through its status sampling module, and transmits them to SVG controller #1; SVG device #2 acquires the CT signal of incoming line #2 and the CT signal of bus tie through its built-in CT sampling module, acquires the PT signal of incoming line #2 through its PT sampling module, and acquires the opening and closing status signals of incoming line switch #2 and bus tie switch through its status sampling module, and transmits them to SVG controller #2.

[0053] In step S120, each SVG controller autonomously identifies the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2.

[0054] Autonomous determination of operating conditions: SVG controller #1 and SVG controller #2 autonomously identify the current power supply mode of the system based on the collected status signals of the incoming line switch and the bus tie switch. The power supply modes include dual power supply independent power supply mode, power supply #1 with two bus sections power supply mode, and power supply #2 with two bus sections power supply mode.

[0055] For example, dual power supply independent power supply mode

[0056] Under this operating condition, the No. 1 incoming line switch is closed, the No. 2 incoming line switch is closed, and the bus tie switch is open. The No. 1 section bus is independently powered by the No. 1 incoming line power supply, and the No. 2 section bus is independently powered by the No. 2 incoming line power supply. The two sections of the bus operate independently with no cross-section load flow.

[0057] After acquiring the status signals of the closing of the No. 1 incoming line switch and the opening of the bus tie switch, the No. 1 SVG controller autonomously determines that the system is in a dual-power independent supply mode, and that the I-section bus is an independent power supply section. The controller adaptively selects the No. 1 incoming line PT signal and the No. 1 incoming line CT signal as the reactive power calculation data source, calculates the real-time reactive power QI1 of the I-section bus through the built-in instantaneous reactive power algorithm, and then controls the No. 1 SVG device to independently output reactive power -QI1, so as to accurately compensate for the reactive load of the I-section bus and eliminate reactive power disturbances of the I-section bus.

[0058] Similarly, after the #2 SVG controller acquires the status signals of the #2 incoming line switch being closed and the bus tie switch being open, it autonomously determines that the II section bus is an independent power supply section. The controller adaptively selects the #2 incoming line PT signal and the #2 incoming line CT signal as the reactive power calculation data source, calculates the real-time reactive power QII1 of the II section bus, and controls the #2 SVG device to independently output reactive power -QII1, thereby independently completing the reactive power compensation of the II section bus.

[0059] Under this operating condition, the two SVG devices operate completely independently with zoned compensation, without compensation overlap or reactive power coupling interference, and are precisely adapted to the operating condition of dual busbars operating separately.

[0060] For example, power supply #1 is in a two-bus power supply mode.

[0061] Under this operating condition, the No. 1 incoming line switch is closed, the No. 2 incoming line switch is open, and the bus tie switch is closed. The No. 1 incoming line power supply simultaneously supplies power to both the I section bus and the II section bus, and the two bus sections operate in parallel. The No. 2 incoming line power supply is taken out of operation.

[0062] After acquiring the status signals of the closed #1 incoming switch, the open #2 incoming switch, and the closed bus tie switch, the #1 SVG controller autonomously determines that both bus sections are powered by the #1 power supply. The controller adaptively switches between dual sampling data sources: on one hand, it calculates the total reactive power QI2 of both bus sections using the #1 incoming PT signal combined with the #1 incoming CT signal; on the other hand, it accurately calculates the reactive power QII2 flowing through the bus tie to the II bus section using the #1 incoming PT signal combined with the bus tie CT signal. The controller then uses the difference calculation QI2-QII2 to accurately isolate the independent reactive load of the I bus section, ultimately controlling the #1 SVG device to output reactive power QII2-QI2 to specifically compensate for the reactive power deficit of the I bus section.

[0063] After acquiring the status signals of the #2 incoming line switch opening and the bus tie switch closing, the #2 SVG controller autonomously determines that the II section bus is supplied with power from the #1 power source via the bus tie switch. The controller adaptively selects the #2 incoming line PT signal and the bus tie CT signal as the reactive power calculation data source, calculates the real-time reactive power QII2 of the II section bus, and controls the #2 SVG device to independently output reactive power -QII2, thereby independently completing the reactive power compensation of the II section bus.

[0064] Under this operating condition, the two SVG devices perform their respective functions and provide zoned compensation. Through adaptive switching of dual CT data sources, the reactive load of the two bus sections is accurately split, completely avoiding the problem of mutual interference in reactive compensation under parallel operation.

[0065] For example, power supply #2 is in a two-bus power supply mode.

[0066] Under this operating condition, the No. 2 incoming line switch is closed, the No. 1 incoming line switch is open, and the bus tie switch is closed. The No. 2 incoming line power supply simultaneously supplies power to both the I section bus and the II section bus, and the two bus sections operate in parallel. The No. 1 incoming line power supply is taken out of operation.

[0067] After acquiring the status signals of the #2 incoming line switch being closed, the #1 incoming line switch being open, and the bus tie switch being closed, the #2 SVG controller autonomously determines that both bus sections are powered by the #2 power supply. The controller adaptively switches between the dual sampling data sources, calculating the total reactive power QII3 of the two bus sections using the #2 incoming line PT signal and the #2 incoming line CT signal. Simultaneously, it calculates the reactive power QI3 flowing to the I bus section via the bus tie using the #2 incoming line PT signal and the bus tie CT signal. Through the difference calculation QII3-QI3, the independent reactive load of the II bus section is extracted, and the #2 SVG device is controlled to output reactive power QI3-QII3 to accurately compensate for the reactive power deficit of the II bus section.

[0068] After acquiring the status signals of the opening of the No. 1 incoming line switch and the closing of the bus tie switch, the No. 1 SVG controller autonomously determines that the No. 2 power supply is connected to the No. 1 bus section via the bus tie switch. The controller adaptively selects the No. 1 incoming line PT signal and the bus tie CT signal as the reactive power calculation data source, calculates the real-time reactive power QI3 of the No. 1 bus section, and controls the No. 1 SVG device to independently output the reactive power -QI3, thereby independently completing the reactive power compensation of the No. 1 bus section.

[0069] In step S130, each SVG controller adaptively switches the PT and CT sampling data sources required for reactive power calculation according to the current power supply mode, and independently calculates the reactive power of the corresponding bus section.

[0070] Adaptive switching of calculation data source: Each SVG controller autonomously switches the PT and CT sampling data source required for reactive power calculation according to the determined power supply mode, and independently calculates the reactive power of the corresponding bus section.

[0071] In step S140, each of the two SVG devices independently outputs reactive power compensation current according to its own calculated reactive power in the section, realizing reactive power compensation in the dual busbar full-condition zone. The two SVG devices adopt a masterless peer-to-peer control architecture, and do not issue compensation commands to each other or perform power allocation.

[0072] Autonomous reactive power compensation in zones: The 1#SVG device and the 2#SVG device have no master-slave architecture and do not communicate with each other to allocate commands. They independently output the compensation reactive current according to the reactive power of their corresponding zones calculated by themselves, so as to complete the precise reactive power compensation of the dual busbars under all operating conditions.

[0073] This application discloses a dual-busbar dual-SVG adaptive reactive power compensation control method, which is adapted to a dual-busbar power supply system with a first-section busbar and a second-section busbar. The first-section busbar is equipped with a #1 incoming power supply and a #1 SVG device, while the second-section busbar is equipped with a #2 incoming power supply and a #2 SVG device. A bus tie switch is installed between the two busbars, enabling the two busbars to operate in a switchable and mutually redundant mode. The system is equipped with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT), providing a hardware sampling basis for system operating condition identification, electrical parameter acquisition, and reactive power calculation. This application embodiment abandons the traditional dual SVG master-slave control architecture. The two SVG devices adopt a peer-to-peer independent control mode without master and slave. The devices do not issue compensation commands to each other or perform power allocation. Each device independently completes signal acquisition, operating condition determination, data source switching, reactive power calculation and compensation output, realizing adaptive zone reactive power compensation for all operating conditions of the dual bus.

[0074] During operation of this embodiment, SVG device #1 and SVG device #2 always perform independent sampling operations synchronously: SVG device #1 independently collects the CT signal of incoming line #1, the CT signal of bus tie line, and the PT signal of incoming line #1, while simultaneously collecting the real-time opening and closing status signals of incoming line switch #1 and bus tie switch, and transmits all sampled signals to its built-in SVG controller in real time; SVG device #2 independently collects the CT signal of incoming line #2, the CT signal of bus tie line, and the PT signal of incoming line #2, while simultaneously collecting the real-time opening and closing status signals of incoming line switch #2 and bus tie switch, and transmits all sampled signals to its built-in SVG controller in real time. The two SVG controllers operate independently without interfering with each other. They autonomously identify the current power supply mode of the system based on the real-time switch status and can accurately adapt to three core operating conditions: dual power supply independent power supply mode, power supply 1 with two bus sections power supply mode, and power supply 2 with two bus sections power supply mode. Furthermore, they adaptively switch the PT and CT sampling data sources required for reactive power calculation for different operating conditions, independently calculate the reactive power of the corresponding bus section, and independently output reactive power compensation current based on the calculation results to complete precise reactive power compensation in different zones.

[0075] In summary, the embodiments of this application are based on a dual SVG peer-to-peer control architecture without master-slave relationships. Relying on switch state recognition and adaptive switching technology for sampling data sources, it can seamlessly adapt to the three core power supply operating conditions of a dual bus system. The entire process requires no manual intervention or communication coordination between devices. The hardware architecture is simple and the operation is highly reliable. It effectively solves the technical problems of traditional master-slave control schemes, such as easy failure, high cost, interference in multi-condition compensation, and poor accuracy. It achieves high-precision, interference-free zoned reactive power compensation for the dual bus system under all operating conditions, significantly improving the power quality and power supply stability of the distribution system.

[0076] In one embodiment of this application, when the system is in a dual-power independent power supply mode, the 1# incoming line switch is closed, the 2# incoming line switch is closed, and the bus tie switch is opened. The control steps are as follows: The 1# SVG controller determines that the I section bus is independently powered by the 1# power supply based on the switch status, selects the 1# incoming line PT signal and the 1# incoming line CT signal as the calculation data source, calculates the reactive power QI1 of the I section bus, and controls the 1# SVG device to output reactive power -QI1 to compensate the reactive power of the I section bus separately; The 2# SVG controller determines that the II section bus is independently powered by the 2# power supply based on the switch status, selects the 2# incoming line PT signal and the 2# incoming line CT signal as the calculation data source, calculates the reactive power QII1 of the II section bus, and controls the 2# SVG device to output reactive power -QII1 to compensate the reactive power of the II section bus separately.

[0077] In the reactive power compensation control embodiment of the dual power supply independent power supply mode of this application, the system operates in the dual power supply independent power supply mode. At this time, the No. 1 incoming line switch is closed, the No. 2 incoming line switch is closed, the bus tie switch is open, the two bus sections operate independently, and each is independently powered by its corresponding incoming line power supply.

[0078] The specific control steps are as follows: The #1 SVG device collects the status signals of the #1 incoming line switch and the bus tie switch in real time and uploads them to the #1 SVG controller. The #1 SVG controller determines that the I-section busbar is independently powered by the #1 power supply based on the current switch status. Simultaneously, the #1 SVG controller selects the #1 incoming line PT signal and the #1 incoming line CT signal as the data source for reactive power calculation. It calculates the reactive power QI1 of the I-section busbar in real time using its built-in reactive power calculation algorithm, and finally controls the #1 SVG device to output reactive power -QI1, performing reactive power compensation separately for the I-section busbar.

[0079] Correspondingly, the #2 SVG device collects the status signals of the #2 incoming line switch and the bus tie switch in real time and uploads them to the #2 SVG controller. The #2 SVG controller determines that the II section bus is independently powered by the #2 power supply based on the switch status. The #2 SVG controller selects the #2 incoming line PT signal and the #2 incoming line CT signal as the calculation data source, calculates the reactive power QII1 of the II section bus, and controls the #2 SVG device to output reactive power -QII1, thus independently completing the reactive power compensation of the II section bus.

[0080] In this embodiment, the two bus sections operate independently and the two SVG units provide independent zone compensation without interfering with each other. This can accurately offset the local reactive load of each bus section and effectively maintain the stability of the bus voltage and the compliance of the power factor under the split operation condition.

[0081] In one embodiment of this application, when the system is in the mode of supplying power to two bus sections via power supply from power source #1, the #1 incoming switch is closed, the #2 incoming switch is open, and the bus tie switch is closed. The control steps are as follows: The #1 SVG controller determines that both bus sections are supplied by power source #1 based on the switch status. It calculates the total reactive power QI2 of the two bus sections using the PT signal and CT signal of the #1 incoming line, and calculates the independent reactive power QII2 of bus section II using the PT signal and CT signal of the #1 incoming line. The independent reactive power QI2-QII2 of bus section I is obtained through difference calculation. The #1 SVG device is controlled to output reactive power QII2-QI2 to compensate for the reactive power deficit of bus section I. The #2 SVG controller determines that bus section II is supplied by power source #1 via the bus tie switch based on the switch status. It selects the PT signal and CT signal of the #2 incoming line as the calculation data source, calculates the reactive power QII2 of bus section II, and controls the #2 SVG device to output reactive power -QII2 to independently compensate for the reactive power of bus section II.

[0082] In the reactive power compensation control embodiment of the power supply mode of No. 1 power supply with two bus sections in this application, the system operates in the power supply mode of No. 1 power supply with two bus sections. At this time, No. 1 incoming switch is closed, No. 2 incoming switch is open, and bus tie switch is closed. The entire double bus system is powered by No. 1 incoming power supply. The II bus section obtains power supply through the bus tie switch.

[0083] The specific control steps are as follows: The #1 SVG controller determines, based on the collected switch status, that both bus sections are powered by the #1 power supply. The #1 SVG controller uses two sampling data sources for reactive power calculation: the total reactive power QI2 of both bus sections is calculated using the #1 incoming PT signal combined with the #1 incoming CT signal; the independent reactive power QII2 of bus section II is calculated using the #1 incoming PT signal combined with the bus tie CT signal. Further, through the difference calculation QI2-QII2, the independent reactive power load of bus section I is accurately obtained, and the #1 SVG device is controlled to output reactive power QII2-QI2 to compensate for the reactive power deficit of bus section I.

[0084] Simultaneously, based on the open state of the No. 2 incoming line switch and the closed state of the bus tie switch, the No. 2 SVG controller determines that the II section bus is powered by the No. 1 power supply via the bus tie switch. The No. 2 SVG controller selects the No. 2 incoming line PT signal and the bus tie CT signal as the reactive power calculation data source, calculates the reactive power QII2 of the II section bus, and controls the No. 2 SVG device to output reactive power -QII2, independently completing the reactive power compensation of the II section bus.

[0085] This embodiment uses differential calculation based on dual CT data sources to accurately distinguish between the reactive power of the main bus and the reactive power of the segmented buses, solving the problem of reactive power coupling and ambiguous compensation boundaries of the two bus segments when a single power source operates with two buses in parallel, and achieving precise compensation for the two bus segments in a partitioned manner.

[0086] In one embodiment of this application, when the system is in the mode of supplying power to two bus sections via power supply from power source #2, the #2 incoming switch is closed, the #1 incoming switch is open, and the bus tie switch is closed. The control steps are as follows: The #2 SVG controller determines that both bus sections are supplied by power source #2 based on the switch status. It calculates the total reactive power QII3 of the two bus sections using the PT signal and CT signal of the #2 incoming line, and calculates the independent reactive power QI3 of bus section I using the PT signal and CT signal of the #2 incoming line. The independent reactive power QII3-QI3 of bus section II is obtained through difference calculation. The #2 SVG device is controlled to output reactive power QI3-QII3 to compensate for the reactive power deficit of bus section II. The #1 SVG controller determines that bus section I is supplied by power source #2 via the bus tie switch based on the switch status. It selects the PT signal of the #1 incoming line and the CT signal of the bus tie as the calculation data source, calculates the reactive power QI3 of bus section I, and controls the #1 SVG device to output reactive power -QI3 to independently compensate for the reactive power of bus section I.

[0087] In the reactive power compensation control embodiment of the power supply mode of the No. 2 power supply with two bus sections in this application, the system operates in the power supply mode of the No. 2 power supply with two bus sections. At this time, the No. 2 incoming switch is closed, the No. 1 incoming switch is open, and the bus tie switch is closed. The entire double bus system is powered by the No. 2 incoming power supply. The No. 1 bus section obtains power supply through the bus tie switch.

[0088] The specific control steps are as follows: The #2 SVG controller determines, based on the collected switch status, that both bus sections are powered by the #2 power supply. The #2 SVG controller uses two sampling data sources for reactive power calculation: the total reactive power QII3 of both bus sections is calculated using the #2 incoming line PT signal combined with the #2 incoming line CT signal; the independent reactive power QI3 of bus section I is calculated using the #2 incoming line PT signal combined with the bus tie CT signal. The independent reactive power load of bus section II is obtained by calculating the difference QII3-QI3, and the #2 SVG device is controlled to output reactive power QI3-QII3 to compensate for the reactive power deficit of bus section II.

[0089] Simultaneously, based on the status of the #1 incoming line switch being open and the bus tie switch being closed, the #1 SVG controller determines that the I section bus is powered by the #2 power supply via the bus tie switch. The #1 SVG controller selects the #1 incoming line PT signal and the bus tie CT signal as the reactive power calculation data source, calculates the reactive power QI3 of the I section bus, and controls the #1 SVG device to output reactive power -QI3, independently completing the reactive power compensation of the I section bus.

[0090] This embodiment can be adapted to extreme operating conditions where the entire section of the No. 2 power supply is under load. By using differential logic between the total incoming current and the cross-section current of the bus tie, the independent reactive power of each bus section is accurately separated, avoiding the defects of overlapping and mutual disturbance of SVG compensation under parallel operation conditions.

[0091] In one embodiment of this application, the hardware acquisition architecture of SVG device 1 and SVG device 2 is completely symmetrical, and each is independently configured with a CT sampling module, a PT sampling module, and a status sampling module; both SVG devices synchronously acquire the bus tie CT signal and the bus tie switch status signal, providing a sampling basis for full-condition power supply mode recognition and adaptive data source switching.

[0092] In the dual SVG symmetrical hardware sampling architecture embodiment of this application, the 1#SVG device and the 2#SVG device adopt a completely symmetrical hardware acquisition architecture. Both SVG devices are independently configured with CT sampling module, PT sampling module and status sampling module, and have independent and complete signal acquisition and data preprocessing capabilities.

[0093] Among them, the two SVG devices not only collect the status of local incoming line CTs, incoming line PTs, and incoming line switches, but also simultaneously collect the bus tie CT signals and bus tie switch position status signals. By adding a synchronous acquisition link for bus tie electrical quantities and switch status quantities, each SVG device can independently sense all operating topology changes such as dual busbar splitting, paralleling, and single power supply cross-banding. This provides a complete hardware sampling foundation for the system's full-condition power supply mode recognition and reactive power calculation sampling data source adaptive switching, ensuring accurate switching and stable execution of control logic under different operating conditions.

[0094] In one embodiment of this application, SVG device 1 and SVG device 2 are peer independent control units. There is no master-slave hierarchy between them. They do not issue compensation commands to each other or perform power allocation. Each device autonomously completes the entire process of operating condition determination, power calculation, and reactive power compensation output.

[0095] In the masterless peer-to-peer independent control architecture embodiment of this application, SVG device 1 and SVG device 2 are completely peer-to-peer independent control units. The system does not have a master-slave hierarchy and does not rely on cross-device communication and collaboration.

[0096] The two SVG devices do not issue compensation commands to each other, nor do they perform power sharing or command allocation. Each SVG device can autonomously complete the entire closed-loop calculation process, including operating condition determination, reactive power calculation, and compensation current output, based on the voltage, current, and switch status signals it collects. Compared to the traditional master-slave architecture, this embodiment completely avoids the risk of the entire compensation system shutting down due to master failure, communication interruption, or command anomalies, significantly improving system reliability. At the same time, it simplifies the system hardware network structure and reduces equipment investment and maintenance costs.

[0097] In one embodiment of this application, the adaptive switching process of the data source does not require manual intervention. The system automatically matches the corresponding PT and CT sampling combination according to the real-time opening and closing status of the incoming switch and the bus tie switch, adapting to all power supply scenarios of dual busbar parallel operation and single power supply parallel operation, and realizing seamless switching compensation under all working conditions.

[0098] In the fully automatic data source adaptive switching control embodiment of this application, the entire process of adaptive switching of PT and CT sampling data sources in this embodiment does not require manual intervention and has fully automatic adaptive characteristics.

[0099] The system can automatically match and switch the PT and CT sampling combinations required for reactive power calculation based on the real-time opening and closing status of incoming line switches and bus tie switches. It can adaptively adapt to all power supply scenarios, including independent operation of dual busbars, parallel operation of power source #1 with two busbar sections, and parallel operation of power source #2 with two busbar sections. During grid operation mode switching, fault switching, and maintenance switching, the SVG compensation logic can seamlessly follow the topology and automatically switch, achieving accurate reactive power compensation under all operating conditions, without any sense of loss or interruption, effectively ensuring the stability and consistency of power quality under different operating modes.

[0100] This application's embodiments address the multi-condition operation characteristics of dual-bus dual-SVG power distribution systems. Through core technical solutions such as peer-to-peer master-slave control, multi-signal synchronous acquisition, adaptive switching of sampling data sources, and segmented differential reactive power calculation, it solves the defects of traditional master-slave control schemes, including poor reliability, high dependence, mutual interference in multi-condition compensation, low accuracy, and high cost. It achieves high-precision and high-reliability zoned adaptive reactive power compensation for dual-bus systems under all operating conditions, possessing strong engineering application and promotion value.

[0101] like Figure 2 The diagram shown is a typical main circuit diagram for two busbars using two SVG devices; as shown Figure 3 The diagram shown is a schematic diagram of the acquisition principle for CT signals, PT signals, and switch status of device #1 SVG; as shown... Figure 4 The diagram shows the acquisition principle of CT signal, PT signal and switch status of device #2 SVG.

[0102] Specifically, such as Figure 1 The diagram shown is a typical main circuit diagram for two busbars using two SVG devices. The typical characteristics of the main circuit are: each busbar has a power supply, a load and an SVG device, and a bus tie switch is installed between the two busbars.

[0103] Specifically, such as Figure 2 The diagram shows the acquisition principle of CT signal, PT signal and switch status of device 1#SVG. The CT sampling module of 1#SVG acquires the CT signal of 1# incoming line and the CT signal of bus tie and transmits them to the controller of 1#SVG. The PT sampling module of 1#SVG acquires the PT signal of 1# incoming line and transmits it to the controller of 1#SVG. The status sampling module of 1#SVG acquires the switch status of 1# incoming line and the switch status of bus tie and transmits them to the controller of 1#SVG.

[0104] like Figure 3The diagram shows the acquisition principle of CT signals, PT signals, and switch status of the #2 SVG device. The CT sampling module of the #2 SVG acquires the CT signals of the #2 incoming line and the bus tie CT signals and transmits them to the #2 SVG controller. The PT sampling module of the #2 SVG acquires the PT signals of the #2 incoming line and transmits them to the #2 SVG controller. The status sampling module of the #2 SVG acquires the switch status of the #2 incoming line and the bus tie switch status and transmits them to the #2 SVG controller. The reactive power compensation control method using two SVG devices for the two bus sections is described below:

[0105] There are three power supply methods for the two bus sections. The first method: Bus section I is powered by power source #1, with the #1 incoming switch closed; Bus section II is powered by power source #2, with the #2 incoming switch closed and the bus tie switch open. The second method: Bus section I is powered by power source #1, with the #1 incoming switch closed; Bus section II is powered by power source #1 via the bus tie switch, with the bus tie switch closed and the #2 incoming switch open. The third method: Bus section I is powered by power source #2 via the bus tie switch, with the bus tie switch closed and the #1 incoming switch open; Bus section II is powered by power source #2, with the #2 incoming switch closed.

[0106] The reactive power compensation control method for SVG device #1 under the first power supply mode is as follows:

[0107] The CT sampling module of the 1#SVG device collects the CT signal of the 1# incoming line and the CT signal of the bus and transmits them to the controller of the 1#SVG device. The PT sampling module of the 1#SVG device collects the PT signal of the 1# incoming line and transmits it to the controller of the 1#SVG device.

[0108] The status sampling module of the 1#SVG device collects the closing status of the 1# incoming line switch and the opening status of the bus tie switch and transmits them to the controller of the 1#SVG device. The controller of the 1#SVG device determines that the I section bus is powered by the 1# power supply based on the 1# incoming line switch being in the closed state and the bus tie switch being in the open state.

[0109] The controller of the 1#SVG device selects the PT signal and CT signal of the 1# incoming line as the data source for calculating the active power and reactive power of the I section bus. The active power PI1 and reactive power QI1 of the I section bus are calculated by the program algorithm of the controller. The 1#SVG device outputs reactive power -QI1 based on the reactive power calculation data.

[0110] The reactive power compensation control method for SVG device #2 under the first power supply mode is as follows:

[0111] The CT sampling module of the 2#SVG device collects the CT signal from the 2# incoming line and the CT signal from the bus and transmits it to the controller of the 2#SVG device. The PT sampling module of the 2#SVG device collects the PT signal from the 2# incoming line and transmits it to the controller of the 2#SVG device.

[0112] The status sampling module of the SVG device 2 collects the closing status of the SVG device 2 incoming line switch and the opening status of the bus tie switch and transmits them to the controller of the SVG device 2. The controller of the SVG device 2 determines that the II section bus is powered by the SVG device 2 based on the closing status of the SVG device 2 incoming line switch and the opening status of the bus tie switch.

[0113] The controller of the #2 SVG device selects the #2 incoming line PT signal and the #2 incoming line CT signal as the data source for calculating the active power and reactive power of the II section bus. The controller's program algorithm calculates the active power PII1 and reactive power QII1 of the II section bus. The #2 SVG device outputs reactive power -QII1 based on the reactive power calculation data.

[0114] The reactive power compensation control method for SVG device #1 under the second power supply method is as follows:

[0115] The CT sampling module of the 1#SVG device collects the CT signal of the 1# incoming line and the CT signal of the bus and transmits them to the controller of the 1#SVG device. The PT sampling module of the 1#SVG device collects the PT signal of the 1# incoming line and transmits it to the controller of the 1#SVG device.

[0116] The status sampling module of the 1#SVG device collects the closing status of the 1# incoming line switch and the bus switch and transmits it to the controller of the 1#SVG device. The controller of the 1#SVG device determines that the I section bus and the II section bus are powered by the 1# power supply based on the closing status of the 1# incoming line switch and the bus tie switch.

[0117] The controller of SVG device #1 selects the PT signal and CT signal of incoming line #1 as the data source for calculating the active and reactive power of bus section I and bus section II. The controller's program algorithm calculates the active power PI2 and reactive power QI2 of bus section I and bus section II. The controller of SVG device #1 selects the PT signal of incoming line #1 and the bus tie CT signal as the data source for calculating the active and reactive power of bus section II. The controller's program algorithm calculates the active power PII2 and reactive power QII2 of bus section II. The program algorithm of SVG device #1 uses QI2 minus QII2 to calculate the reactive power QI2-QII2 that needs to be compensated for on bus section I. SVG device #1 outputs the reactive power QII2-QI2 based on the reactive power calculation data.

[0118] The reactive power compensation control method for the No. 2 SVG device under the second power supply method is as follows:

[0119] The CT sampling module of the 2#SVG device collects the CT signal from the 2# incoming line and the CT signal from the bus and transmits it to the controller of the 2#SVG device. The PT sampling module of the 2#SVG device collects the PT signal from the 2# incoming line and transmits it to the controller of the 2#SVG device.

[0120] The status sampling module of the SVG device 2 collects the open status of the SVG 2 incoming line switch and the closed status of the bus tie switch and transmits them to the controller of the SVG device 2. The controller of the SVG device 2 determines that the II section bus is powered by the SVG 1 power supply based on the fact that the SVG 2 incoming line switch is in the open status and the bus tie switch is in the closed status.

[0121] The controller of the #2 SVG device selects the PT signal of the #2 incoming line and the CT signal of the bus tie as the data source for calculating the active power and reactive power of the II section bus. The active power PII2 and reactive power QII2 of the II section bus are calculated by the program algorithm of the controller. The #2 SVG device outputs reactive power -QII2 based on the reactive power calculation data.

[0122] The reactive power compensation control method for SVG device #1 under the third power supply mode is as follows:

[0123] The CT sampling module of the 1#SVG device collects the CT signal of the 1# incoming line and the CT signal of the bus and transmits them to the controller of the 1#SVG device. The PT sampling module of the 1#SVG device collects the PT signal of the 1# incoming line and transmits it to the controller of the 1#SVG device.

[0124] The status sampling module of the 1#SVG device collects the open status of the 1# incoming line switch and the closed status of the bus switch and transmits them to the controller of the 1#SVG device. The controller of the 1#SVG device determines that the I section bus is powered by the 2# power supply based on the 1# incoming line switch being in the open state and the bus tie switch being in the closed state.

[0125] The controller of SVG device #1 selects the PT signal of incoming line #1 and the CT signal of bus tie as the data source for calculating the active power and reactive power of bus section I. The active power PI3 and reactive power QI3 of bus section I are calculated by the controller's program algorithm. The SVG device #1 outputs reactive power -QI3 based on the reactive power calculation data.

[0126] The reactive power compensation control method for the No. 2 SVG device under the third power supply mode is as follows:

[0127] The CT sampling module of the 2#SVG device collects the CT signal from the 2# incoming line and the CT signal from the bus and transmits it to the controller of the 2#SVG device. The PT sampling module of the 2#SVG device collects the PT signal from the 2# incoming line and transmits it to the controller of the 2#SVG device.

[0128] The status sampling module of the SVG device 2 collects the closing status of the SVG device 2 incoming line switch and the closing status of the bus switch and transmits them to the controller of the SVG device 2. The controller of the SVG device 2 determines that the I section bus and the II section bus are powered by the SVG device 2 based on the closing status of the SVG device 2 incoming line switch and the bus tie switch.

[0129] The controller of SVG device #2 selects the PT signal and CT signal of incoming line #2 as the data source for calculating the active and reactive power of bus section I and bus section II. The controller's program algorithm calculates the active power PII3 and reactive power QII3 of bus section I and bus section II. The controller of SVG device #2 selects the PT signal of incoming line #2 and the bus tie CT signal as the data source for calculating the active and reactive power of bus section I. The controller's program algorithm calculates the active power PI3 and reactive power QI3 of bus section I. The program algorithm of SVG device #2 calculates the reactive power QII3-QI3 that needs to be compensated for by subtracting QI3 from QII3. SVG device #2 outputs the reactive power QI3-QII3 based on the reactive power calculation data.

[0130] This application also provides a dual-bus dual-SVG adaptive reactive power compensation control device 500, such as... Figure 2 As shown, a schematic diagram of the structure of the dual-bus dual-SVG adaptive reactive power compensation control device in this application embodiment is provided. The device 500 includes at least: a synchronous signal acquisition module 510 for two SVG devices, an autonomous operating condition determination module 520, an adaptive switching calculation data source module 530, and a zoned autonomous reactive power compensation module 540, wherein:

[0131] In one embodiment of this application, the synchronous signal acquisition module 510 for the two SVG devices is specifically used to: each of the two SVG devices independently acquires the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, and corresponding incoming line switch and bus tie switch status signals and transmits them to its own SVG controller.

[0132] The two SVG devices acquire signals synchronously: SVG device #1 acquires the CT signal of incoming line #1 and the CT signal of bus tie through its built-in CT sampling module, acquires the PT signal of incoming line #1 through its PT sampling module, and acquires the opening and closing status signals of incoming line switch #1 and bus tie switch through its status sampling module, and transmits them to SVG controller #1; SVG device #2 acquires the CT signal of incoming line #2 and the CT signal of bus tie through its built-in CT sampling module, acquires the PT signal of incoming line #2 through its PT sampling module, and acquires the opening and closing status signals of incoming line switch #2 and bus tie switch through its status sampling module, and transmits them to SVG controller #2.

[0133] In one embodiment of this application, the autonomous operating condition determination module 520 is specifically used for: each SVG controller autonomously identifying the current power supply mode of the system based on the collected switch status signals, wherein the power supply mode includes dual power supply independent power supply mode, power supply 1 with two bus sections power supply mode, and power supply 2 with two bus sections power supply mode.

[0134] Autonomous determination of operating conditions: SVG controller #1 and SVG controller #2 autonomously identify the current power supply mode of the system based on the collected status signals of the incoming line switch and the bus tie switch. The power supply modes include dual power supply independent power supply mode, power supply #1 with two bus sections power supply mode, and power supply #2 with two bus sections power supply mode.

[0135] For example, dual power supply independent power supply mode

[0136] Under this operating condition, the No. 1 incoming line switch is closed, the No. 2 incoming line switch is closed, and the bus tie switch is open. The No. 1 section bus is independently powered by the No. 1 incoming line power supply, and the No. 2 section bus is independently powered by the No. 2 incoming line power supply. The two sections of the bus operate independently with no cross-section load flow.

[0137] After acquiring the status signals of the closing of the No. 1 incoming line switch and the opening of the bus tie switch, the No. 1 SVG controller autonomously determines that the system is in a dual-power independent supply mode, and that the I-section bus is an independent power supply section. The controller adaptively selects the No. 1 incoming line PT signal and the No. 1 incoming line CT signal as the reactive power calculation data source, calculates the real-time reactive power QI1 of the I-section bus through the built-in instantaneous reactive power algorithm, and then controls the No. 1 SVG device to independently output reactive power -QI1, so as to accurately compensate for the reactive load of the I-section bus and eliminate reactive power disturbances of the I-section bus.

[0138] Similarly, after the #2 SVG controller acquires the status signals of the #2 incoming line switch being closed and the bus tie switch being open, it autonomously determines that the II section bus is an independent power supply section. The controller adaptively selects the #2 incoming line PT signal and the #2 incoming line CT signal as the reactive power calculation data source, calculates the real-time reactive power QII1 of the II section bus, and controls the #2 SVG device to independently output reactive power -QII1, thereby independently completing the reactive power compensation of the II section bus.

[0139] Under this operating condition, the two SVG devices operate completely independently with zoned compensation, without compensation overlap or reactive power coupling interference, and are precisely adapted to the operating condition of dual busbars operating separately.

[0140] For example, power supply #1 is in a two-bus power supply mode.

[0141] Under this operating condition, the No. 1 incoming line switch is closed, the No. 2 incoming line switch is open, and the bus tie switch is closed. The No. 1 incoming line power supply simultaneously supplies power to both the I section bus and the II section bus, and the two bus sections operate in parallel. The No. 2 incoming line power supply is taken out of operation.

[0142] After acquiring the status signals of the closed #1 incoming switch, the open #2 incoming switch, and the closed bus tie switch, the #1 SVG controller autonomously determines that both bus sections are powered by the #1 power supply. The controller adaptively switches between dual sampling data sources: on one hand, it calculates the total reactive power QI2 of both bus sections using the #1 incoming PT signal combined with the #1 incoming CT signal; on the other hand, it accurately calculates the reactive power QII2 flowing through the bus tie to the II bus section using the #1 incoming PT signal combined with the bus tie CT signal. The controller then uses the difference calculation QI2-QII2 to accurately isolate the independent reactive load of the I bus section, ultimately controlling the #1 SVG device to output reactive power QII2-QI2 to specifically compensate for the reactive power deficit of the I bus section.

[0143] After acquiring the status signals of the #2 incoming line switch opening and the bus tie switch closing, the #2 SVG controller autonomously determines that the II section bus is supplied with power from the #1 power source via the bus tie switch. The controller adaptively selects the #2 incoming line PT signal and the bus tie CT signal as the reactive power calculation data source, calculates the real-time reactive power QII2 of the II section bus, and controls the #2 SVG device to independently output reactive power -QII2, thereby independently completing the reactive power compensation of the II section bus.

[0144] Under this operating condition, the two SVG devices perform their respective functions and provide zoned compensation. Through adaptive switching of dual CT data sources, the reactive load of the two bus sections is accurately split, completely avoiding the problem of mutual interference in reactive compensation under parallel operation.

[0145] For example, power supply #2 is in a two-bus power supply mode.

[0146] Under this operating condition, the No. 2 incoming line switch is closed, the No. 1 incoming line switch is open, and the bus tie switch is closed. The No. 2 incoming line power supply simultaneously supplies power to both the I section bus and the II section bus, and the two bus sections operate in parallel. The No. 1 incoming line power supply is taken out of operation.

[0147] After acquiring the status signals of the #2 incoming line switch being closed, the #1 incoming line switch being open, and the bus tie switch being closed, the #2 SVG controller autonomously determines that both bus sections are powered by the #2 power supply. The controller adaptively switches between the dual sampling data sources, calculating the total reactive power QII3 of the two bus sections using the #2 incoming line PT signal and the #2 incoming line CT signal. Simultaneously, it calculates the reactive power QI3 flowing to the I bus section via the bus tie using the #2 incoming line PT signal and the bus tie CT signal. Through the difference calculation QII3-QI3, the independent reactive load of the II bus section is extracted, and the #2 SVG device is controlled to output reactive power QI3-QII3 to accurately compensate for the reactive power deficit of the II bus section.

[0148] After acquiring the status signals of the opening of the No. 1 incoming line switch and the closing of the bus tie switch, the No. 1 SVG controller autonomously determines that the No. 2 power supply is connected to the No. 1 bus section via the bus tie switch. The controller adaptively selects the No. 1 incoming line PT signal and the bus tie CT signal as the reactive power calculation data source, calculates the real-time reactive power QI3 of the No. 1 bus section, and controls the No. 1 SVG device to independently output the reactive power -QI3, thereby independently completing the reactive power compensation of the No. 1 bus section.

[0149] In one embodiment of this application, the adaptive switching calculation data source module 530 is specifically used for: each SVG controller adaptively switching the PT and CT sampling data sources required for reactive power calculation according to the current power supply mode, and independently calculating the reactive power of the corresponding bus section.

[0150] Adaptive switching of calculation data source: Each SVG controller autonomously switches the PT and CT sampling data source required for reactive power calculation according to the determined power supply mode, and independently calculates the reactive power of the corresponding bus section.

[0151] In one embodiment of this application, the partitioned autonomous reactive power compensation module 540 is specifically used for: two SVG devices independently output reactive power compensation current according to their own calculated section reactive power, so as to realize the dual bus full-condition partitioned reactive power compensation. The two SVG devices adopt a masterless peer control architecture, and do not issue compensation commands to each other or perform power allocation.

[0152] Autonomous reactive power compensation in zones: The 1#SVG device and the 2#SVG device have no master-slave architecture and do not communicate with each other to allocate commands. They independently output the compensation reactive current according to the reactive power of their corresponding zones calculated by themselves, so as to complete the precise reactive power compensation of the dual busbars under all operating conditions.

[0153] It is understood that the above-mentioned dual-bus dual-SVG adaptive reactive power compensation control device can realize each step of the dual-bus dual-SVG adaptive reactive power compensation control method provided in the foregoing embodiments. The relevant explanations of the transaction reconciliation method are applicable to the transaction reconciliation device and will not be repeated here.

[0154] Figure 6 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Please refer to it. Figure 6 At the hardware level, the electronic device includes a processor, and optionally also includes an internal bus, a network interface, and memory. The memory may include main memory, such as high-speed random-access memory (RAM), or non-volatile memory, such as at least one disk drive. Of course, the electronic device may also include other hardware required for other business operations.

[0155] The processor, network interface, and memory can be interconnected via an internal bus, which can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. This bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 6 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0156] Memory is used to store programs. Specifically, programs may include program code, which includes computer operation instructions. Memory may include main memory and non-volatile memory, and provides instructions and data to the processor.

[0157] The processor reads the corresponding computer program from non-volatile memory into main memory and then executes it, forming a dual-bus dual-SVG adaptive reactive power compensation control device at the logical level. The processor executes the program stored in memory and specifically performs the following operations:

[0158] Each of the two SVG devices independently acquires the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, and corresponding incoming line switch and bus tie switch status signals and transmits them to its own SVG controller;

[0159] Each SVG controller autonomously identifies the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2.

[0160] Each SVG controller adaptively switches the PT and CT sampling data sources required for reactive power calculation based on the current power supply mode, and independently calculates the reactive power of the corresponding bus section; and

[0161] Each of the two SVG devices independently outputs reactive power compensation current based on its own calculated reactive power for the designated section, achieving full-condition zoned reactive power compensation for the dual-bus system. The two SVG devices employ a master-slave peer-to-peer control architecture, without issuing compensation commands to each other or performing power allocation. The above is as described in this application. Figure 1 The method executed by the dual-bus dual-SVG adaptive reactive power compensation control device disclosed in the illustrated embodiment can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0162] The electronic device can also perform Figure 1 The method for implementing a dual-bus dual-SVG adaptive reactive power compensation control device is described, and the implementation of the dual-bus dual-SVG adaptive reactive power compensation control device in... Figure 1 The functions of the embodiments shown are not described in detail here.

[0163] This application also proposes a computer-readable storage medium that stores one or more programs, the programs including instructions that, when executed by an electronic device including multiple applications, enable the electronic device to perform... Figure 1 The method executed by the dual-bus dual-SVG adaptive reactive power compensation control device in the illustrated embodiment is specifically used to perform the following:

[0164] Each of the two SVG devices independently acquires the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, and corresponding incoming line switch and bus tie switch status signals and transmits them to its own SVG controller;

[0165] Each SVG controller autonomously identifies the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2.

[0166] Each SVG controller adaptively switches the PT and CT sampling data sources required for reactive power calculation based on the current power supply mode, and independently calculates the reactive power of the corresponding bus section; and

[0167] Each of the two SVG devices independently outputs reactive power compensation current based on its own calculated reactive power in the section, realizing reactive power compensation in the dual-bus full-condition zone. The two SVG devices adopt a masterless peer-to-peer control architecture, and do not issue compensation commands to each other or perform power allocation.

[0168] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0169] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0170] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0171] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0172] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0173] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0174] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0175] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0176] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0177] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A dual-busbar dual-SVG adaptive reactive power compensation control method, applied to a dual-busbar power supply system with a first-section busbar and a second-section busbar, wherein the first-section busbar is equipped with a #1 incoming power supply and a #1 SVG device, and the second-section busbar is equipped with a #2 incoming power supply and a #2 SVG device, a bus tie switch is provided between the two busbars, and the system is equipped with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT), characterized in that, The method includes: Each of the two SVG devices independently acquires the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, and the corresponding incoming line switch and bus tie switch status signals and transmits them to its own SVG controller; Each SVG controller autonomously identifies the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2. Each SVG controller adaptively switches the PT and CT sampling data sources required for reactive power calculation based on the current power supply mode, and independently calculates the reactive power of the corresponding bus section; and Each of the two SVG devices independently outputs reactive power compensation current based on its own calculated reactive power in the section, realizing reactive power compensation in the dual-bus full-condition zone. The two SVG devices adopt a masterless peer-to-peer control architecture, and do not issue compensation commands to each other or perform power allocation.

2. The method according to claim 1, characterized in that, When the system is in dual-power independent supply mode, the control steps are as follows: 1# incoming switch closes, 2# incoming switch closes, and bus tie switch opens. Based on the switch status, the 1#SVG controller determines that the I-section bus is independently powered by the 1# power supply. It selects the 1# incoming line PT signal and the 1# incoming line CT signal as the calculation data source, calculates the reactive power QI1 of the I-section bus, and controls the 1#SVG device to output reactive power -QI1 to compensate the reactive power of the I-section bus separately. The SVG controller determines that the II section bus is independently powered by the SVG power supply based on the switch status. It selects the PT signal and CT signal of the SVG input line as the calculation data source, calculates the reactive power QII1 of the II section bus, and controls the SVG device to output reactive power -QII1 to compensate the reactive power of the II section bus separately.

3. The method according to claim 1, characterized in that, When the system is in the mode of supplying power from power source #1 to two busbars, the control steps are as follows: Power source #1 closes, power source #2 opens, and bus tie switch closes. The SVG controller determines that both bus sections are powered by the SVG power supply based on the switch status. It calculates the total reactive power QI2 of the two bus sections using the PT signal and CT signal of the SVG input line, and calculates the independent reactive power QII2 of the bus section II using the PT signal and CT signal of the bus tie line. The independent reactive power QI2-QII2 of the bus section I is obtained by difference calculation. The SVG controller then controls the SVG device to output reactive power QII2-QI2 to compensate for the reactive power deficit of the bus section I. The SVG controller #2 determines that the II section bus is powered by the #1 power supply via the bus tie switch based on the switch status. It selects the PT signal of the #2 incoming line and the CT signal of the bus tie as the calculation data source, calculates the reactive power QII2 of the II section bus, and controls the #2 SVG device to output reactive power -QII2 to independently compensate for the reactive power of the II section bus.

4. The method according to claim 1, characterized in that, When the system is in the mode of supplying power to two busbars via power supply #2, the control steps are as follows: #2 incoming switch closes, #1 incoming switch opens, and the bus tie switch closes. The #2 SVG controller determines that both bus sections are powered by the #2 power supply based on the switch status. It calculates the total reactive power QII3 of the two bus sections using the #2 incoming PT signal and the #2 incoming CT signal, and calculates the independent reactive power QI3 of the I bus section using the #2 incoming PT signal and the bus tie CT signal. The independent reactive power QII3-QI3 of the II bus section is obtained through difference calculation. The #2 SVG device is then controlled to output reactive power QI3-QII3 to compensate for the reactive power deficiency of the II bus section. The 1#SVG controller determines that the I-section busbar is powered by the 2# power supply via the bus tie switch based on the switch status. It selects the PT signal of the 1# incoming line and the CT signal of the bus tie as the calculation data source, calculates the reactive power QI3 of the I-section busbar, and controls the 1#SVG device to output reactive power -QI3 to independently compensate for the reactive power of the I-section busbar.

5. The method according to claim 1, characterized in that, The hardware acquisition architecture of SVG devices #1 and #2 is completely symmetrical, with each device independently configured with a CT sampling module, a PT sampling module, and a status sampling module. Both SVG devices synchronously acquire the bus tie CT signal and the bus tie switch status signal, providing a sampling basis for full-condition power supply mode recognition and adaptive data source switching.

6. The method according to claim 1, characterized in that, The SVG device #1 and SVG device #2 are equal and independent control units. There is no master and slave hierarchy between them. They do not issue compensation commands to each other or perform power allocation. Each device autonomously completes the entire process of operating condition determination, power calculation, and reactive power compensation output.

7. The method according to claim 1, characterized in that, The adaptive switching process of the data source requires no manual intervention. The system automatically matches the corresponding PT and CT sampling combination according to the real-time opening and closing status of the incoming line switch and the bus tie switch, adapting to all power supply scenarios of dual busbar operation and single power supply parallel operation, and realizing seamless switching compensation under all working conditions.

8. A dual-busbar dual-SVG adaptive reactive power compensation control device, applied to a dual-busbar power supply system with a first-section busbar and a second-section busbar, wherein the first-section busbar is equipped with a #1 incoming power supply and a #1 SVG device, and the second-section busbar is equipped with a #2 incoming power supply and a #2 SVG device, a bus tie switch is provided between the two busbars, and the system is equipped with a #1 incoming current transformer (CT), a #2 incoming current transformer (CT), a bus tie current transformer (CT), a #1 incoming voltage transformer (PT), and a #2 incoming voltage transformer (PT), characterized in that, The device includes: The synchronous signal acquisition module for the two SVG devices is used to allow each of the two SVG devices to independently acquire the corresponding incoming line CT signal, bus tie CT signal, incoming line PT signal, as well as the corresponding incoming line switch and bus tie switch status signals and transmit them to their own SVG controller. The operating condition autonomous determination module is used by each SVG controller to autonomously identify the current power supply mode of the system based on the collected switch status signals. The power supply modes include dual power supply independent power supply mode, power supply mode with two bus sections of power supply #1, and power supply mode with two bus sections of power supply #2. The adaptive switching calculation data source module is used by each SVG controller to adaptively switch the PT and CT sampling data sources required for reactive power calculation according to the current power supply mode, and independently calculate the reactive power of the corresponding bus section; and The autonomous reactive power compensation module is used by two SVG devices to independently output reactive power compensation current according to their own calculated reactive power in the section, so as to realize the dual bus full-condition zone reactive power compensation. The two SVG devices adopt a masterless peer control architecture, and do not issue compensation commands to each other or perform power allocation.

9. An electronic device, comprising: processor; as well as A memory configured to store computer-executable instructions, which, when executed, cause the processor to perform the method of any one of claims 1 to 7.

10. A computer-readable storage medium storing one or more programs, which, when executed by an electronic device including a plurality of applications, cause the electronic device to perform the method of any one of claims 1 to 7.

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