Source network load storage aggregation control system and method, terminal and storage medium

Abstract

The invention belongs to the technical field of power supply and distribution, and particularly relates to a source network load storage aggregation control system and method, a terminal and a storage medium, the system comprises at least one control master station, and each control master station is correspondingly connected with a plurality of coordination controllers; the coordination controller comprises a terminal concentrator, a distributed power supply access unit and an electric energy meter, the first end of the distributed power supply access unit is connected to the source load storage unit through the electric energy meter, and the second end of the distributed power supply access unit is connected to the corresponding control master station through the terminal concentrator; according to the invention, the coordination controller collects the state parameters of the source-load storage unit in real time and calculates the power coordination capability of the source-load storage unit, so that the operation state of the power grid is accurately mastered; and the control master station generates and issues a coordination corresponding instruction according to the received data in combination with the pre-stored power coordination target, so that the dispatching flexibility and response speed of the power grid are effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply and distribution, and particularly relates to a source-network-load-storage aggregation control system, method, terminal, and storage medium. Background Art

[0002] In the current wave of global energy transformation and grid modernization, the structure of the energy system is undergoing profound changes. With the rapid development of renewable energy such as wind energy and solar energy, the proportion of new energy in power supply is increasing day by day, which poses unprecedented challenges to the operation and management of traditional power grids. Especially in China, the number of new energy power plants has far exceeded that of traditional energy facilities such as conventional thermal power plants. The large-scale connection of new energy to the power grid has brought significant improvement in the utilization of clean energy, but at the same time, it has also triggered a series of problems in consumption, dispatching, operation, and management.

[0003] In traditional local power grids, distributed power sources, grid automation devices, controllable loads, energy storage devices, electric vehicles, and charging facilities each have independent control systems. There is a lack of effective coordination mechanisms between these systems, resulting in low overall operating efficiency and difficulty in effectively dispatching and controlling new energy. The uncertainty and volatility of various load devices further increase the difficulty of new energy participating in power grid dispatching control, which not only increases the operating cost of the power grid but also may affect the stability and security of the power grid.

[0004] More seriously, due to the lack of unified management and optimization between independent systems, it is easy to lead to duplicate investment in local power grids, increase the operation and maintenance costs, and at the same time, the energy loss also increases. Especially in the aspect of new energy consumption, due to the lack of effective dispatching and control means, the power generation capacity of new energy often cannot be fully utilized, which not only causes waste of resources but also affects the further development of renewable energy.

[0005] At the control level, traditional power grid dispatching methods often adopt top-level design and achieve the control of the power grid by issuing and enforcing dispatching instructions. However, this method not only has a long cycle and poor flexibility but also is difficult to reflect economic benefits in the short term. Especially in the context of large-scale access of new energy, the traditional dispatching method has been difficult to meet the requirements of efficient and flexible operation of the power grid. Summary of the Invention

[0006] Aiming at the defect in the prior art that distributed power sources, grid automation devices, controllable loads, energy storage devices, electric vehicles, and charging facilities in traditional local power grids each have independent control systems, and there is a lack of effective coordination mechanisms between these systems, resulting in low overall operating efficiency, the present invention provides a source-network-load-storage aggregation control system, method, terminal, and storage medium to solve the above technical problems.

[0007] In a first aspect, the present invention provides a source-network-load-storage aggregation control system, which includes at least one control master station, and each control master station is correspondingly connected to a plurality of coordination controllers; the coordination controller includes a terminal concentrator, a distributed power access unit, and a watt-hour meter. The first end of the distributed power access unit is connected to the source-load-storage unit through the watt-hour meter, and the second end of the distributed power access unit is connected to the corresponding control master station through the terminal concentrator; The coordination controller is configured to collect the status parameters of the source-load-storage unit, calculate the power coordination ability of the source-load-storage unit according to the collected status parameters of the source-load-storage unit; and transmit the collected status parameters of the source-load-storage unit and the calculated power coordination ability of the source-load-storage unit to the control master station; and is configured to perform power adjustment on the source-load-storage unit according to the received coordination response instruction; The control master station is configured to generate a coordination response instruction corresponding to the source-load-storage unit according to the received power coordination ability of the source-load-storage unit and the pre-stored power coordination target corresponding to the network topology node where the source-load-storage unit is located, and send it to the coordination controller.

[0008] A further improvement of this technical solution is that the coordination controller includes one terminal concentrator and several distributed power access units, and each distributed power access unit is equipped with a watt-hour meter.

[0009] A further improvement of this technical solution is that the terminal concentrator includes a concentrator housing, a function module compartment and a first wiring terminal compartment are arranged in the concentrator housing, the first wiring terminal compartment is arranged at the bottom of the concentrator housing, the function module compartment is arranged above the first wiring terminal compartment, and a display installation area, a first indicator light installation area and a button installation area are arranged on the outside of the concentrator housing above the function module compartment; A power switch, a storage battery, a battery switch, a remote control and remote signaling module, a communication interface and a communication module are arranged in the function module compartment; Three-phase strong electricity terminals, metering sampling auxiliary terminals and remote control and remote signaling module terminals are arranged in the first wiring terminal compartment.

[0010] A further improvement of this technical solution is that the communication module of the terminal concentrator includes a remote communication unit and a local communication unit; The remote communication unit includes an RJ-45 communication sub-unit, a first optical fiber communication sub-unit, a high-speed serial port communication sub-unit, a wireless public network, a wireless private network, a first dual-mode communication sub-unit, a telephone PSTN, an Ethernet communication sub-unit, a second optical fiber communication sub-unit; the wireless public network includes GPRS, CDMA, 4G and 5G; the wireless private network includes 1.8G; the first dual-mode communication sub-unit includes 4G and 1.8G dual-mode communication, 5G and 1.8G dual-mode communication; The local communication unit includes a narrowband carrier communication subunit, a broadband carrier communication subunit, a micro-power wireless communication subunit, and a second dual-mode communication subunit.

[0011] A further improvement of this technical solution is that the distributed power access unit includes a power access housing, on which a local status indicator light, a local maintenance interface, a data acquisition interface, a transfer module, and an Ethernet communication module are provided; The local maintenance interface is used to connect to a local handheld device to set operating parameters and read distributed power data on-site; The data acquisition interface is used to perform minute-level acquisition on the corresponding distributed power, and the acquired data items include voltage, active power, reactive power, and power factor; The transfer module is used to expand the communication interface of the distributed power; The Ethernet communication module is used to provide an Ethernet communication interface and connect to the corresponding distributed power and the corresponding terminal concentrator; At the bottom of the power access housing, there are also installation holes for installing and fixing the non-power unit.

[0012] A further improvement of this technical solution is that the distributed power access unit includes an upstream communication unit and a downstream communication unit; the upstream communication unit includes power line carrier HPLC communication, dual-mode communication, and Ethernet communication; the downstream communication unit includes RS485 communication, RS232 communication, TTL serial port, CAN communication, and Ethernet communication.

[0013] A further improvement of this technical solution is that the electric energy meter includes an electric energy meter housing, in which a transmission module compartment and a second terminal block compartment are provided. The second terminal block compartment is arranged at the bottom of the electric energy meter housing, the transmission module compartment is arranged above the second terminal block compartment, and a second indicator light installation area is arranged on the outer side of the electric energy meter housing above the transmission module compartment; The transmission module compartment is provided with a dual-mode communication interface, an RS-485 communication interface, a CAN bus interface, a telemetry signal interface, and a Bluetooth module; The second terminal block compartment is provided with an electric energy pulse output terminal, a signal output terminal, and a +12V DC power output terminal.

[0014] Second, the present invention provides a source-network-load-storage aggregation control method, including: The coordination controller collects the status parameters of the source-load-storage unit and calculates the power coordination ability of the source-load-storage unit according to the collected status parameters of the source-load-storage unit; The coordination controller transmits the collected status parameters of the source-load-storage unit and the calculated power coordination ability of the source-load-storage unit to the control master station; The control master station generates a collaborative response instruction corresponding to the source-load-storage unit according to the received power collaboration capability of the source-load-storage unit and the pre-stored power collaboration target corresponding to the network topology node where the source-load-storage unit is located, and issues it to the coordination controller; The coordination controller adjusts the power of the source-load-storage unit according to the received collaborative response instruction.

[0015] In a third aspect, a terminal is provided, including: A processor and a memory, where, The memory is used to store a computer program, The processor is used to call and run the computer program from the memory, so that the terminal executes the method of the above terminal.

[0016] In a fourth aspect, a computer storage medium is provided. Instructions are stored in the computer-readable storage medium. When it runs on a computer, the computer is made to execute the methods described in the above aspects.

[0017] The beneficial effects of the present invention are as follows: Improve the operation efficiency and stability of the power grid: By the coordination controller, the state parameters of the source-load-storage unit are collected in real time, and its power collaboration ability is calculated, realizing the accurate grasp of the power grid operation state; The control master station generates and issues a collaborative response instruction according to the received data and in combination with the pre-stored power collaboration target, effectively improving the dispatching flexibility and response speed of the power grid.

[0018] Optimize energy utilization and reduce waste: The system can realize the full utilization of new energy power generation capacity, avoiding energy waste caused by improper dispatching; By accurately controlling the power output of the source-load-storage unit, the efficient utilization of energy is realized, and the overall economic benefit of the energy system is improved.

[0019] In addition, the design principle of the present invention is reliable, the structure is simple, and it has a very wide application prospect. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0021] Figure 1 It is a schematic block diagram of the source-network-load-storage aggregation control system.

[0022] Figure 2 It is a specific connection relationship diagram of the source-network-load-storage aggregation control system.

[0023] Figure 3It is a schematic structural diagram of a terminal concentrator.

[0024] Figure 4 It is a schematic structural diagram of a distributed power access unit.

[0025] Figure 5 It is a schematic structural diagram of an electric energy meter.

[0026] Figure 6 It is a schematic flow chart of the method according to an embodiment of the present invention.

[0027] Figure 7 It is a schematic structural diagram of a terminal provided by an embodiment of the present invention.

[0028] 110 is a control master station, 120 is a coordination controller, 121 is a terminal concentrator, 1211 is a concentrator housing, 1212 is a function module compartment, 1213 is a first terminal compartment, 1214 is a display installation area, 1215 is a first indicator light installation area, 1216 is a button installation area, 122 is a distributed power access unit, 1221 is a power access housing, 1222 is a local status indicator light, 1223 is a local maintenance interface, 1224 is a data acquisition interface, 1225 is a transfer module, 1226 is an Ethernet communication module, 1227 is a mounting hole, 123 is an electric energy meter, 1231 is an electric energy meter housing, 1232 is a transmission module compartment, 1233 is a second terminal compartment, 1234 is a second indicator light installation area. Detailed implementation manners

[0029] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0031] The following explains the key terms that appear in the present invention.

[0032] PCS, the full English name is Power Conversion System, and the Chinese meaning is power conversion system; the power conversion system (PCS) is usually used to convert electrical energy in one form into electrical energy in another form, such as converting direct current (DC) into alternating current (AC), or converting between different voltages and frequencies. In the field of renewable energy, PCS is often used to convert the electrical energy generated by solar panels or wind turbines into a form of electrical energy acceptable to the power grid.

[0033] RJ-45, the full English name is Registered Jack-45, and the Chinese meaning is registered jack 45; RJ-45 is a standardized network interface connector, usually used for Ethernet connections. It contains 8 metal pins for transmitting data and control signals, supporting a data transmission rate of up to 1000 Mbps (gigabit Ethernet).

[0034] USB, the full English name is Universal Serial Bus, and the Chinese meaning is universal serial bus; USB is an external bus standard used to connect a computer to external devices (such as printers, keyboards, mice, storage devices, etc.). It supports hot plugging, plug and play, and high-speed data transmission (up to 5 Gbps for USB 3.x versions).

[0035] PSTN, the full English name is Public Switched Telephone Network, and the Chinese meaning is public switched telephone network; PSTN is the traditional telephone network, composed of telephone switches and transmission lines, used to provide voice communication services. Although the use of PSTN has gradually decreased with the popularity of the Internet, it is still the basic communication infrastructure in many countries and regions.

[0036] GPRS, the full English name is General Packet Radio Service, and the Chinese meaning is general packet radio service; GPRS is a wireless data transmission technology based on the GSM network, which provides a faster data transmission rate than traditional SMS (short message service). GPRS is often used for mobile data communication, such as mobile phone Internet access, remote monitoring, etc.

[0037] CDMA, the full English name is Code Division Multiple Access, and the Chinese meaning is code division multiple access; CDMA is a wireless communication technology that uses different codes to distinguish different users, thus allowing multiple users to use the same frequency and time slot simultaneously. CDMA is widely used in the field of mobile communication, such as 3G networks.

[0038] 4G and 5G, the full English names are Fourth Generation / Fifth Generation Mobile Communication Technology respectively, and the Chinese meanings are the fourth generation / fifth generation mobile communication technology respectively; 4G and 5G are two consecutive development stages of mobile communication technology. 4G provides high-speed data transmission rates and better network coverage, supporting applications such as high-definition video calls and online games. 5G further improves the data transmission rate (up to dozens of Gbps), reduces latency (millisecond level) and increases connection density, making it possible for applications such as the Internet of Things, autonomous driving, and remote healthcare.

[0039] 1.8G, the full English name is 1.8 GHz Frequency Band, and the Chinese meaning is 1.8 gigahertz frequency band; 1.8G usually refers to the 1.8 gigahertz frequency band used in wireless communication. This frequency band can be used for various wireless communication applications, such as private network communication, Internet of Things, etc. The specific use depends on the spectrum allocation and regulatory policies of the country and region.

[0040] CAN, the full English name is Controller Area Network, and the Chinese meaning is controller area network; CAN is a vehicle bus standard used to connect electronic devices such as microcontrollers and sensors in automobiles. It supports multi-master communication, high reliability and real-time performance, and is widely used in automotive control systems, industrial automation and other fields.

[0041] HPLC, the full English name is High-Performance Power Line Carrier Communication, and the Chinese meaning is high-performance power line carrier communication; HPLC is a communication technology that uses power lines as a transmission medium to transmit data in power systems. It supports high-speed data transmission and remote monitoring, and is widely used in smart grids, smart homes and other fields.

[0042] RS485, the full English name is Recommended Standard 485, and the Chinese meaning is recommended standard 485; RS485 is a differential transmission serial communication protocol that supports long distances (up to 1200 meters) and multi-point connections (up to 32 devices). It is widely used in industrial automation, smart homes and other fields.

[0043] RS232, whose full English name is Recommended Standard 232, means Recommended Standard 232 in Chinese; RS232 is a serial communication protocol used to transfer data between a computer and external devices. It uses a single-ended transmission method and supports short-distance (usually no more than 15 meters) communication. Although RS232 has been gradually replaced by more advanced interfaces such as USB, it is still in use in some old devices or specific applications.

[0044] TTL, whose full English name is Transistor-Transistor Logic, means Transistor-Transistor Logic in Chinese; TTL is a logic level standard for digital circuits used to describe the voltage levels in a circuit. TTL levels are usually used in low-voltage digital circuits (such as 5V) and are widely used in computers and electronic devices.

[0045] Modbus, whose full English name is Modbus Protocol, means Modbus Protocol in Chinese; Modbus is a serial communication protocol used to connect industrial electronic devices. It supports multiple transmission media (such as RS232, RS485, Ethernet, etc.) and multiple device types (such as sensors, actuators, controllers, etc.). The Modbus protocol is widely used in fields such as industrial automation and process control.

[0046] As Figure 1 shown, the present invention provides a source-network-load-storage aggregation control system, which is connected in a cascaded manner. The source-network-load-storage aggregation control system includes at least one control master station 110, and each control master station is correspondingly connected to a plurality of coordination controllers 120; the coordination controller includes a terminal concentrator, a distributed power access unit, and a watt-hour meter. The first end of the distributed power access unit is connected to the source-load-storage unit (the source-load-storage unit includes various distributed AC-DC conversion devices such as a photovoltaic inverter, an energy storage PCS, and a charging pile) through the watt-hour meter, and the second end of the distributed power access unit is connected to the corresponding control master station through the terminal concentrator. The source-network-load-storage aggregation control system is applicable to various application scenarios such as photovoltaic inverters, energy storage devices, and charging piles. The cascaded manner can be used to collect the electrical energy information of multiple distributed power sources and perform control. Among them, the coordination controller is connected to the power grid and the source-load-storage unit through an energy transmission method; the coordination controller is connected to the control master station through a communication transmission method.

[0047] Specifically, a coordination controller is configured to collect the state parameters of the source-load-storage unit, calculate the power coordination capability of the source-load-storage unit based on the collected state parameters of the source-load-storage unit; and transmit the collected state parameters of the source-load-storage unit and the calculated power coordination capability of the source-load-storage unit to the control master station; and is used to adjust the power of the source-load-storage unit according to the received coordination response instruction; the control master station is configured to generate a coordination response instruction corresponding to the source-load-storage unit based on the received power coordination capability of the source-load-storage unit and the pre-stored power coordination target corresponding to the network topology node where the source-load-storage unit is located, and send it to the coordination controller.

[0048] As Figure 2 shown, the coordination controller includes a terminal concentrator and several distributed power access units, and each distributed power access unit is equipped with an electric energy meter.

[0049] As Figure 3 shown, the terminal concentrator includes a concentrator housing 1211. Inside the concentrator housing, there is a function module compartment 1212 and a first wiring terminal compartment 1213. The first wiring terminal compartment is arranged at the bottom of the concentrator housing, and the function module compartment is arranged above the first wiring terminal compartment. On the outside of the concentrator housing above the function module compartment, there are a display installation area 1214, a first indicator light installation area 1215, and a key installation area 1216; inside the function module compartment, there are a power switch, a storage battery, a battery switch, a remote control and remote signaling module, a communication interface, and a communication module; inside the first wiring terminal compartment, there are three-phase strong power terminals, metering and sampling auxiliary terminals, and remote control and remote signaling module terminals.

[0050] Furthermore, the terminal concentrator supports the hot-swap function. The communication module of the terminal concentrator includes a remote communication unit and a local communication unit; the remote communication unit includes an RJ-45 communication sub-unit, a first optical fiber communication sub-unit, a USB communication sub-unit, a high-speed serial port communication sub-unit, a wireless public network, a wireless private network, a first dual-mode communication sub-unit, a telephone PSTN, an Ethernet communication sub-unit, and a second optical fiber communication sub-unit; the wireless public network includes GPRS, CDMA, 4G, and 5G; the wireless private network includes 1.8G; the first dual-mode communication sub-unit includes 4G and 1.8G dual-mode communication, and 5G and 1.8G dual-mode communication; specifically, the USB interface in the USB communication sub-unit meets the USB 2.0 requirements, and the communication rate is 480Mbps; the communication rate of the serial port communication sub-unit is not less than 115,200bps.

[0051] The local communication unit includes a narrowband carrier communication subunit, a broadband carrier communication subunit, a micro-power wireless communication subunit, and a second dual-mode communication subunit; the serial communication rate of the local communication unit is defaulted to 115200bps, the parity check mode is even parity, the data bits are 8 bits, and the stop bits are 1 bit; in addition, the local communication unit has 2 RS-485 interfaces, the communication rate is 300∼115200bps, the parity check mode is even parity, the data bits are 8 bits, and the stop bits are 1 bit, and at least 1 RS-485 interface supports up / downlink adaptive communication; the local communication unit has 1 CAN communication interface, the transmission rate supports optional values of 10kbps, 25kbps, 50kbps, 125kbps, 250kbps, 500kbps, 1Mbps, and supports the CAN2.0B protocol specified in ISO 11898.

[0052] The terminal concentrator integrates 4G mobile network communication technology, HPLC communication technology, AC sampling technology, container technology, network security technology, etc., adopts a high-performance 32-bit embedded CPU for industrial control, and uses a modular design to achieve the interchangeability of function modules and the flexible configuration of terminal functions; at the same time, each module is relatively independent to achieve the functions of terminal fault point monitoring and isolation.

[0053] As Figure 4 shown, the distributed power access unit includes a power access housing 1221, on which a local status indicator 1222, a local maintenance interface 1223, a data acquisition interface 1224, a transfer module 1225, and an Ethernet communication module 1226 are provided; the local maintenance interface is used to connect to a local handheld device to set operating parameters and read distributed power data on-site; the data acquisition interface is used to perform minute-level acquisition on the corresponding distributed power, and the acquired data items include voltage, active power, reactive power, and power factor; the transfer module is used to expand the communication interface of the distributed power; the Ethernet communication module is used to provide an Ethernet communication interface and connect to the corresponding distributed power and the corresponding terminal concentrator; the bottom of the power access housing is also provided with mounting holes 1227 for installing and fixing the non-power unit. Among them, the local status indicator can indicate various status information such as infrared communication, operation, alarm, 485 / 1, 485 / 2, 485 / 3, 485 / 4, reception, and transmission; Furthermore, the distributed power access unit includes an uplink communication unit and a downlink communication unit; the uplink communication unit includes power line carrier HPLC communication, dual-mode communication, and Ethernet communication; the downlink communication unit includes RS485 communication, RS232 communication, TTL serial port, CAN communication, and Ethernet communication.

[0054] The distributed power access unit can support the collection, processing, and real-time monitoring of the charging (power generation), electricity consumption information of charging station users, and realize functions such as automatic collection of distributed power information, abnormal monitoring of metering, power quality monitoring, electricity consumption analysis and management, release of relevant information, distributed energy monitoring, and information interaction of intelligent electrical equipment. It is a device that can collect the power generation and electricity consumption information of distributed power. The distributed power access unit has a terminal control function, can achieve local autonomy, accelerate the adjustable response speed, and reduce the computing power requirements of the control master station.

[0055] The distributed power access unit has parameter setting and query functions, and can set and query parameters through the local maintenance interface, including parameters such as clock, address, and data aging time. The distributed power access unit has a timing function, and the absolute value of the daily timing error ≤ 0.5 s / d. It can receive the clock polling and time synchronization commands of the terminal concentrator or local handheld device.

[0056] The distributed power access unit has an automatic protocol recognition function, supports the automatic recognition function of the downstream Modbus protocol. The distributed power access unit can automatically recognize the access protocols of the underlying distributed power sources (including: photovoltaic inverters, energy storage PCS, charging piles), and can automatically convert the upstream DL / T698.45 protocol into the corresponding recognized Modbus protocol for communication.

[0057] As Figure 5 shown, the electricity meter includes an electricity meter housing 1231. A transmission module compartment 1232 and a second wiring terminal compartment 1233 are arranged inside the electricity meter housing. The second wiring terminal compartment is arranged at the bottom of the electricity meter housing, and the transmission module compartment is arranged above the second wiring terminal compartment. A second indicator light installation area 1234 is arranged on the outside of the electricity meter housing above the transmission module compartment. Inside the transmission module compartment, there are a dual-mode communication interface, an RS-485 communication interface, a CAN bus interface, a telemetry signal interface, and a Bluetooth module. Inside the second wiring terminal compartment, there are an electric energy pulse output terminal, a signal output terminal, and a +12V DC power output terminal.

[0058] Specifically, the electricity meter adopts a rail-mounted electricity meter, which is installed on the incoming line side of a multi-metering box and fixed on a rail with the model TH35×7.5. It is used to monitor electrical quantities such as voltage, current, power, and electric energy on the incoming line side of the metering box. At the same time, it has the functions of collecting temperature and humidity, door lock status, and data of other electricity meters, and realizes the overall state perception of the meter box. In extreme cases, rigid control is adopted to cut off the distributed power generation, so as to ensure the safe operation of the large power grid. In addition, the physical layers of the communication channels of the electricity meter are independent of each other, and the damage of any one communication channel does not affect the normal operation of other channels. During communication, the metering performance, metering data, and parameters stored in the electricity meter are not affected and changed.

[0059] AsFigure 6 As shown in the figure, the present invention provides a source-network-load-storage aggregation control method, including: Step 610, the coordination controller collects the state parameters of the source-load-storage unit, and calculates the power coordination ability of the source-load-storage unit according to the collected state parameters of the source-load-storage unit; Step 620, the coordination controller transmits the collected state parameters of the source-load-storage unit and the calculated power coordination ability of the source-load-storage unit to the control master station; Step 630, the control master station generates a corresponding coordination response instruction for the source-load-storage unit according to the received power coordination ability of the source-load-storage unit and the pre-stored power coordination target corresponding to the network topology node where the source-load-storage unit is located, and issues it to the coordination controller; Step 640, the coordination controller adjusts the power of the source-load-storage unit according to the received coordination response instruction.

[0060] Specifically, the data is sent to the control master station in a dual-mode / 4G manner through the terminal concentrator. The distributed power access unit constructs a multi-layer intelligent algorithm based on elements such as the power consumption characteristics of the regional power grid, user priorities (natural persons / non-natural persons), and flexible control ratios, and generates a distributed power regulation plan and regulation scheme according to the constructed multi-layer intelligent algorithm, and real-time tracks the regulation process to achieve precise regulation of distributed power output and optimization of the operation mode; the distributed power access unit obtains the remaining capacity of the distributed power in real time, monitors the power quality at the grid connection point, and uses its idle capacity to achieve reactive power support and harmonic suppression. According to the historical power generation and consumption data of the distributed power, combined with multiple important elements such as date, season, and weather, the distributed power output is predicted, so as to make a scheduling plan in advance; when the voltage is lower than the lower limit, if the idle capacity is insufficient, first reduce the active power and increase the inductive reactive power to analyze the voltage crossing treatment effect at the grid connection point, and then decide whether to cut the reactive power according to the analysis result. If the treatment effect is positive, cut the active power, and if the treatment effect is negative, maintain the original treatment method unchanged; in extreme cases, adopt rigid control, and use the rail-mounted watt-hour meter and circuit breaker to cut off the distributed photovoltaic power generation, so as to ensure the safe operation of the large power grid.

[0061] For example, the distributed power access unit can collect the operation data of the charging pile (including the voltage, current, power, operation status, etc. of the charging pile) through a two-in-one transfer cable and RS485 / RS232 interfaces, and can monitor the overall information such as the installed capacity, operation status, power flow, and voltage distribution of the charging facilities, and exchange data with the terminal concentrator.

[0062] Figure 7 It is a schematic structural diagram of a terminal 700 provided by an embodiment of the present invention. The terminal 700 can be used to execute the source-network-load-storage aggregation control method provided by an embodiment of the present invention.

[0063] Among them, the terminal 700 may include: a processor 710, a memory 720, and a communication module 730. These components communicate through one or more buses. Those skilled in the art can understand that the structure of the server shown in the figure does not constitute a limitation to the present invention. It can be a bus structure, a star structure, and may also include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0064] Among them, the memory 720 can be used to store the execution instructions of the processor 710. The memory 720 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. When the execution instructions in the memory 720 are executed by the processor 710, the terminal 700 can execute some or all of the steps in the above method embodiments.

[0065] The processor 710 is the control center of the storage terminal, connecting various parts of the entire electronic terminal through various interfaces and lines. By running or executing software programs and / or modules stored in the memory 720, and calling the data stored in the memory, it executes various functions of the electronic terminal and / or processes data. The processor may be composed of an integrated circuit (IC), for example, it may be composed of a single packaged IC, or may be composed of multiple packaged ICs with the same or different functions connected. For example, the processor 710 may only include a central processing unit (CPU). In the embodiment of the present invention, the CPU may be a single operation core or may include multiple operation cores.

[0066] The communication module 730 is used to establish a communication channel, so that the storage terminal can communicate with other terminals. Receive user data sent by other terminals or send user data to other terminals.

[0067] The present invention also provides a computer storage medium. Among them, the computer storage medium can store a program, and when the program is executed, it may include some or all of the steps in the embodiments provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0068] Those skilled in the art can clearly understand that the technology in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solutions in the embodiments of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc, etc., various media that can store program codes, including several instructions for causing a computer terminal (which can be a personal computer, a server, or a second terminal, a network terminal, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0069] For the same or similar parts among the various embodiments in this specification, reference can be made to each other. In particular, for the terminal embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for the relevant parts, reference can be made to the descriptions in the method embodiments.

[0070] In several embodiments provided by the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there can be other division methods. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of systems or modules can be in electrical, mechanical, or other forms.

[0071] The modules described as separate components may or may not be physically separated. The components shown as modules may or may not be physical modules, that is, they can be located in one place, or they can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0072] In addition, in each embodiment of the present invention, the functional modules can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module.

[0073] Although the present invention has been described in detail by reference to the accompanying drawings and in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope of the present invention. / Any person skilled in the art within the technical scope disclosed by the present invention can easily conceive of changes or substitutions, and all should be covered within the protection scope of the present invention.

Claims

1. A source-grid-load-storage aggregation control system, characterized in that: It includes at least one control master station, each control master station is connected to a plurality of coordination controllers; the coordination controller includes a terminal concentrator, a distributed power access unit and an electric energy meter, the first end of the distributed power access unit is connected to the source load storage unit through the electric energy meter, and the second end of the distributed power access unit is connected to the corresponding control master station through the terminal concentrator; A coordination controller is used to collect state parameters of the source-load-storage unit, and calculate the power coordination capability of the source-load-storage unit according to the collected state parameters of the source-load-storage unit; and transmit the collected state parameters of the source-load-storage unit and the calculated power coordination capability of the source-load-storage unit to the control main station; and is used to adjust the power of the source-load-storage unit according to the received coordination corresponding instruction; The control master station is used to generate corresponding coordination instructions corresponding to the source-load-storage unit according to the received power coordination capability of the source-load-storage unit and the pre-stored power coordination target corresponding to the network topology node where the source-load-storage unit is located, and send it to the coordination controller.

2. The source-grid-load-storage aggregation control system according to claim 1 is characterized in that: The coordination controller includes a terminal concentrator and a plurality of distributed power access units, each of which is equipped with an electric energy meter.

3. The source-grid-load-storage aggregation control system according to claim 1 is characterized in that: The terminal concentrator comprises a concentrator housing, a function module compartment and a first terminal compartment are arranged in the concentrator housing, the first terminal compartment is arranged at the bottom of the concentrator housing, the function module compartment is arranged above the first terminal compartment, and a display screen installation area, a first indicator light installation area and a button installation area are arranged on the outer side of the concentrator housing above the function module compartment; The functional module compartment is equipped with a power switch, a storage battery, a battery switch, a remote control signal module, a communication interface and a communication module; The first terminal compartment is provided with three-phase high-voltage terminals, metering and sampling auxiliary terminals and remote control and telesignaling module terminals.

4. The source-grid-load-storage aggregation control system according to claim 1, characterized in that: The communication module of the terminal concentrator includes a remote communication unit and a local communication unit; The remote communication unit includes an RJ-45 communication subunit, a first optical fiber communication subunit, a high-speed serial communication subunit, a wireless public network, a wireless private network, a first dual-mode communication subunit, a telephone PSTN, an Ethernet communication subunit, and a second optical fiber communication subunit; the wireless public network includes GPRS, CDMA, 4G, and 5G; the wireless private network includes 1.8G; the first dual-mode communication subunit includes 4G and 1.8G dual-mode communication, and 5G and 1.8G dual-mode communication; The local communication unit includes a narrowband carrier communication subunit, a broadband carrier communication subunit, a micro-power wireless communication subunit and a second dual-mode communication subunit.

5. The source-grid-load-storage aggregation control system according to claim 1, characterized in that: The distributed power access unit includes a power access housing, on which a local status indicator light, a local maintenance interface, a data acquisition interface, a switching module and an Ethernet communication module are provided; Local maintenance interface, used to connect local handheld devices to set operating parameters and read distributed power data on site; Data acquisition interface, used to collect data of corresponding distributed power sources at minute level, including voltage, active power, reactive power and power factor; Adapter module, used to expand the communication interface of distributed power supply; An Ethernet communication module, used to provide an Ethernet communication interface, connected to a corresponding distributed power source and a corresponding terminal concentrator; The bottom of the power supply access housing is also provided with a mounting hole for mounting and fixing the power supply unit.

6. The source-grid-load-storage aggregation control system according to claim 5 is characterized in that: The distributed power access unit includes an uplink communication unit and a downlink communication unit; the uplink communication unit includes power line carrier HPLC communication, dual-mode communication and Ethernet communication; the downlink communication unit includes RS485 communication, RS232 communication, TTL serial port, CAN communication and Ethernet communication.

7. The source-grid-load-storage aggregation control system according to claim 1, characterized in that: The electric energy meter comprises an electric energy meter housing, a transmission module compartment and a second terminal compartment are arranged in the electric energy meter housing, the second terminal compartment is arranged at the bottom of the electric energy meter housing, the transmission module compartment is arranged above the second terminal compartment, and a second indicator light installation area is arranged on the outer side of the electric energy meter housing above the transmission module compartment; The transmission module cabin is equipped with dual-mode communication interface, RS-485 communication interface, CAN bus interface, remote signal interface and Bluetooth module; The second terminal compartment is provided with an electric energy pulse output terminal, a signal output terminal and a +12V DC power supply output terminal.

8. A source-grid-load-storage aggregation control method, characterized in that: include: The coordination controller collects state parameters of the source-load-storage unit, and calculates the power coordination capability of the source-load-storage unit according to the collected state parameters of the source-load-storage unit; The coordination controller transmits the collected state parameters of the source-load-storage unit and the calculated power coordination capability of the source-load-storage unit to the control master station; The control master station generates a corresponding coordination instruction for the source-load-storage unit according to the received power coordination capability of the source-load-storage unit and the pre-stored power coordination target corresponding to the network topology node where the source-load-storage unit is located, and sends it to the coordination controller; The coordination controller adjusts the power of the source load storage unit according to the received coordination corresponding instruction.

9. A terminal, characterized in that: include: processor; A memory for storing execution instructions of the processor; Wherein, the processor is configured to execute the method of claim 8.

10. A computer-readable storage medium storing a computer program, characterized in that: When the program is executed by a processor, the method according to claim 8 is implemented.

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