Distributed phase regulator configuration method and system

Abstract

The present invention relates to the field of power system engineering, and discloses a distributed phase-shifting configuration method and system, the method comprising: analyzing the reactive power demand and grid structure of the power system, identifying the load center of the power system; configuring the distributed phase-shifting of the load center; constructing a control data model of the distributed phase-shifting and the power system, determining the control target of the distributed phase-shifting, identifying the performance index of the power system, and constructing the control algorithm and coordination strategy of the distributed phase-shifting; determining the communication protocol between the distributed phase-shifting and the corresponding monitoring center of the power system, and establishing a redundant communication path between the distributed phase-shifting and the corresponding monitoring center; collecting the grid compensation data of the distributed phase-shifting after operation, optimizing the corresponding parameters of the distributed phase-shifting, obtaining the target parameters, and executing reactive power compensation for the power system based on the target parameters. The present invention can improve the configuration effect of the distributed phase-shifting.

Description

Technical Field

[0001] The present invention relates to the field of power system engineering, and in particular to a distributed phase regulator configuration method and system. Background Art

[0002] Distributed phase regulator refers to a reactive power compensation device based on power electronics technology, which can provide fast-response dynamic reactive support in the power system. Distributed phase regulators are an important part of the modern power system, especially in the context of high proportion of renewable energy grid connection and extensive use of power electronic equipment. They play an important role in improving the flexibility and reliability of the power grid.

[0003] At present, distributed phase regulator configuration is mainly achieved by analyzing the power grid status to select hardware equipment, installation location, control strategy, etc. This method does not take into account special situations such as possible signal interference, communication link failure or data transmission congestion that may cause response delays in distributed phase regulators, resulting in poor configuration of distributed phase regulators. Summary of the invention

[0004] The present invention provides a distributed phase regulator configuration method and system, the main purpose of which is to improve the configuration effect of the distributed phase regulator.

[0005] To achieve the above object, the present invention provides a distributed phase condenser configuration method, comprising:

[0006] Acquire grid data of the power system, analyze the grid reactive power demand and grid structure of the power system based on the grid data, and identify the load center of the power system based on the grid reactive power demand and the grid structure;

[0007] Based on the reactive power demand of the power grid, configuring the distributed phase regulator of the load center;

[0008] Constructing a control data model between the distributed phase regulator and the power system, determining a control target of the distributed phase regulator, identifying a performance indicator of the power system, and constructing a control algorithm and coordination strategy for the distributed phase regulator based on the control data model, the control target, and the performance indicator;

[0009] Determine a communication protocol between the distributed phase regulator and a corresponding monitoring center of the power system, and establish a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol;

[0010] Based on the unit capacity, the control algorithm, the coordination strategy and the redundant communication path, the grid compensation data of the distributed phase regulator after the operation of the power system is collected, and based on the grid compensation data, the corresponding parameters of the distributed phase regulator are optimized to obtain target parameters, and based on the target parameters, reactive power compensation of the power system is performed.

[0011] Optionally, analyzing the grid reactive power demand and grid structure of the power system based on the grid data includes:

[0012] Preprocessing the power grid data to obtain preprocessed power grid data;

[0013] Based on the pre-processed power grid data, a power flow analysis is performed on the power system to obtain a power flow analysis result;

[0014] Analyzing the reactive power demand of the power system based on the power flow analysis result;

[0015] Based on the preprocessed grid data, identifying a component topology of the power system;

[0016] Based on the component topology diagram, a grid structure of the power system is determined.

[0017] Optionally, analyzing the grid reactive power demand of the power system based on the power flow analysis result includes:

[0018] Analyzing the reactive power demand influencing factors of the power system;

[0019] Identifying the influence relationship of the reactive demand influencing factor on the reactive demand of the power system;

[0020] Based on the power flow analysis result, identifying the impact factor value of the reactive demand impact factor;

[0021] Based on the impact factor value and the reactive power demand impact relationship, the grid reactive power demand of the power system is determined.

[0022] Optionally, the identifying the load center of the power system based on the reactive power demand of the power grid and the power grid structure includes:

[0023] Serializing the reactive power demand of the power grid to obtain a serialized reactive power demand;

[0024] Mark the target reactive power demand with the maximum reactive power corresponding to the serialized reactive power demand;

[0025] Based on the power grid structure, locating reactive power demand coordinates of the target reactive power demand;

[0026] The reactive power demand coordinates are used as the load center of the power system.

[0027] Optionally, configuring the distributed phase regulator of the load center based on the reactive power demand of the power grid includes:

[0028] determining a grid condition of the load center;

[0029] Determining the type of distributed phase regulator at the load center based on the power system conditions and the reactive power demand of the power grid;

[0030] Calculating reactive power compensation capacity of the load center;

[0031] Based on the reactive power compensation capacity, configuring the unit capacity of the distributed phase condenser type;

[0032] Based on the type of distributed phase regulator and the unit capacity, the distributed phase regulator of the load center is deployed.

[0033] Optionally, the calculating the reactive compensation capacity of the load center includes:

[0034] determining the apparent power and power factor angle of the load center;

[0035] Based on the apparent power and the power factor angle, the load reactive power of the load center is calculated using the following formula:

[0036]

[0037] Where σ represents the reactive compensation capacity of the load center, D c represents the apparent power of the cth load in the load center, It represents the power factor angle of the cth load in the load center, Indicates the sine value of the power factor angle of the cth load in the load center;

[0038] Based on the load reactive power, the reactive compensation capacity of the load center is calculated.

[0039] Optionally, the calculating the reactive compensation capacity of the load center based on the load reactive power includes:

[0040] Identify the angular frequency and voltage value of the power grid corresponding to the load center;

[0041] Based on the angular frequency, the voltage value and the load reactive power, the reactive compensation capacity of the load center is calculated using the following formula:

[0042]

[0043] Among them, L represents the reactive compensation capacity of the load center, σ represents the reactive power of the load, ω represents the angular frequency of the power grid corresponding to the load center, and P represents the voltage value of the power grid corresponding to the load center.

[0044] The angular frequency refers to the frequency of voltage and current changes in the power grid, and the voltage value refers to the voltage at a certain point in the power grid.

[0045] Optionally, the establishing a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol includes:

[0046] Based on the communication protocol, establishing a main communication path between the distributed phase regulator and the monitoring center;

[0047] Based on the main communication path, establishing a backup communication path between the distributed phase regulator and the monitoring center;

[0048] A redundancy mechanism of the primary communication path and the backup communication path is configured to obtain the redundant communication path.

[0049] Optionally, the optimizing corresponding parameters of the distributed phase condenser based on the power grid compensation data to obtain target parameters includes:

[0050] identifying compensation characteristics of the power grid compensation data;

[0051] Based on the compensation feature, identifying a compensation state of the distributed phase condenser;

[0052] Based on the compensation state, analyzing compensation abnormality of the distributed phase condenser;

[0053] Based on the compensation anomaly, the corresponding parameters of the distributed phase condenser are optimized to obtain target parameters.

[0054] In order to solve the above problems, the present invention also provides a distributed phase regulator configuration system, the system comprising:

[0055] A load center analysis module, used to obtain grid data of the power system, analyze the grid reactive power demand and grid structure of the power system based on the grid data, and identify the load center of the power system based on the grid reactive power demand and the grid structure;

[0056] A distributed phase regulator configuration module, configured to configure the distributed phase regulator of the load center based on the reactive power demand of the power grid;

[0057] A control algorithm building module, used to build a control data model between the distributed phase regulator and the power system, determine the control target of the distributed phase regulator, identify the performance index of the power system, and build a control algorithm and coordination strategy for the distributed phase regulator based on the control data model, the control target and the performance index;

[0058] A redundant communication path establishing module, used to determine the communication protocol between the distributed phase regulator and the corresponding monitoring center of the power system, and to establish a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol;

[0059] A power grid compensation module is used to collect power grid compensation data of the distributed phase regulator after the operation of the power system based on the unit capacity, the control algorithm, the coordination strategy and the redundant communication path, optimize corresponding parameters of the distributed phase regulator based on the power grid compensation data, obtain target parameters, and perform reactive power compensation for the power system based on the target parameters.

[0060] The embodiment of the present invention analyzes the reactive power demand and grid structure of the power system based on the grid data to better understand the operation status of the grid and formulate corresponding reactive power compensation strategies; the embodiment of the present invention configures the distributed phase regulator of the load center based on the reactive power demand of the grid to realize effective compensation of reactive power and improve the voltage stability and operation efficiency of the grid; the embodiment of the present invention can realize the basis of efficient control of the distributed phase regulator by constructing the control data model between the distributed phase regulator and the power system; further, the embodiment of the present invention establishes a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol to establish a high-reliability communication network to ensure a stable connection between the distributed phase regulator and the monitoring center, thereby supporting real-time monitoring and effective control of the power system. Further, the embodiment of the present invention optimizes the corresponding parameters of the distributed phase regulator based on the grid compensation data to obtain the target parameters in order to improve the performance of the distributed phase regulator, so that it can more effectively compensate for the reactive power of the grid, improve the voltage quality and improve the stability of the system. Finally, the embodiment of the present invention performs reactive power compensation for the power system based on the target parameters to improve the stability of the power system. Therefore, the distributed phase regulator configuration method and system proposed in the present invention can improve the configuration effect of the distributed phase regulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 A schematic diagram of a flow chart of a distributed phase condenser configuration method provided by an embodiment of the present invention;

[0062] Figure 2A functional module diagram of a distributed phase regulator configuration system provided by an embodiment of the present invention;

[0063] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0064] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0065] The embodiment of the present application provides a distributed phase regulator configuration method. The execution subject of the distributed phase regulator configuration method includes but is not limited to at least one of the electronic devices such as a server, a terminal, etc. that can be configured to execute the method provided by the embodiment of the present application. In other words, the distributed phase regulator configuration method can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, etc. The server can be an independent server, or it can be a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), and big data and artificial intelligence platforms.

[0066] Reference Figure 1 FIG. 1 is a flow chart of a distributed phase condenser configuration method provided in an embodiment of the present invention. In this embodiment, the distributed phase condenser configuration method includes:

[0067] S1. Acquire grid data of an electric power system, analyze the grid reactive power demand and grid structure of the electric power system based on the grid data, and identify the load center of the electric power system based on the grid reactive power demand and the grid structure.

[0068] In the embodiment of the present invention, the power system refers to a system composed of power generation, transmission, transformation, distribution and power consumption, and the power system refers to a part of the power system, specifically the network structure of power transmission and distribution, which includes high-voltage transmission lines, substations, distribution networks and low-voltage power supply lines, and the power grid data refers to information related to the operation, status, performance and reliability of the power grid. These data may include real-time operation data of the power system (such as voltage, current, power, frequency, etc.), equipment parameters (such as line length, transformer capacity, circuit breaker status, etc.), and system topology (such as power grid structure, node connection, etc.).

[0069] The embodiment of the present invention analyzes the reactive power demand and structure of the power system based on the power grid data to better understand the operation status of the power grid and formulate corresponding reactive power compensation strategies. The reactive power demand of the power grid refers to the reactive power required by the power system to maintain the voltage level, improve the power factor angle and ensure the stable operation of the system, and the power grid structure refers to the spatial layout and connection mode of all transmission lines, substations, distribution lines and other power facilities in the power system.

[0070] As an embodiment of the present invention, the analyzing the grid reactive power demand and grid structure of the power system based on the grid data includes:

[0071] Preprocessing the power grid data to obtain preprocessed power grid data;

[0072] Based on the pre-processed power grid data, a power flow analysis is performed on the power system to obtain a power flow analysis result;

[0073] Analyzing the reactive power demand of the power system based on the power flow analysis result;

[0074] Based on the preprocessed grid data, identifying a component topology of the power system;

[0075] Based on the component topology diagram, a grid structure of the power system is determined.

[0076] Among them, the pre-processed power grid data refers to a data set after operations such as invalid value deletion and missing value supplementation are performed on the power grid data. The power flow analysis results include: node voltage, line flow, power factor angle, transformer load, generator output, and the component topology diagram refers to a graphical representation method for displaying the physical connection relationship between various components in the power grid (such as generators, transformers, lines, loads, etc.).

[0077] Furthermore, in an optional embodiment of the present invention, the power flow analysis of the power system is performed based on the pre-processed power grid data, and the power flow analysis results can be obtained by installing sensors at each node.

[0078] Furthermore, in another optional embodiment of the present invention, analyzing the reactive power demand of the power system based on the power flow analysis result includes:

[0079] Analyzing the reactive power demand influencing factors of the power system;

[0080] Identifying the influence relationship of the reactive demand influencing factor on the reactive demand of the power system;

[0081] Based on the power flow analysis result, identifying the impact factor value of the reactive demand impact factor;

[0082] Based on the impact factor value and the reactive power demand impact relationship, the grid reactive power demand of the power system is determined.

[0083] Among them, the reactive demand influencing factor refers to the factors affecting the reactive demand assessment of the power system, such as node voltage, node current, power and other factors; the reactive demand influencing relationship refers to the correlation between the reactive demand influencing factor and the reactive demand of the power system, wherein the reactive demand influencing relationship can be achieved through statistical analysis, and the influencing factor value refers to the quantified value of the reactive demand influencing factor, such as node voltage value, node current value and other values.

[0084] Optionally, in an embodiment of the present invention, the load center refers to an area in the power grid where the reactive power demand is the largest.

[0085] As an embodiment of the present invention, the identifying the load center of the power system based on the reactive power demand of the power grid and the power grid structure includes:

[0086] Serializing the reactive power demand of the power grid to obtain a serialized reactive power demand;

[0087] Mark the target reactive power demand with the maximum reactive power corresponding to the serialized reactive power demand;

[0088] Based on the power grid structure, locating reactive power demand coordinates of the target reactive power demand;

[0089] The reactive power demand coordinates are used as the load center of the power system.

[0090] Among them, the serialized reactive demand refers to the demand after arranging the reactive demand of the power grid according to the corresponding reactive power values, the target reactive demand refers to the reactive demand with the largest reactive power in the serialized reactive demand, and the reactive demand coordinate refers to the position of the target reactive demand in the power grid structure.

[0091] S2. Based on the reactive power demand of the power grid, configure the distributed phase regulator of the load center.

[0092] The embodiment of the present invention configures the distributed phase regulator of the load center based on the reactive power demand of the power grid to achieve effective reactive power compensation and improve the voltage stability and operation efficiency of the power grid. The distributed phase regulator refers to a reactive power compensation device based on power electronics technology.

[0093] As an embodiment of the present invention, configuring the distributed phase regulator of the load center based on the reactive power demand of the power grid includes:

[0094] determining a grid condition of the load center;

[0095] Determining the type of distributed phase regulator at the load center based on the power system conditions and the reactive power demand of the power grid;

[0096] Calculating reactive power compensation capacity of the load center;

[0097] Based on the reactive power compensation capacity, configuring the unit capacity of the distributed phase condenser type;

[0098] Based on the type of distributed phase regulator and the unit capacity, the distributed phase regulator of the load center is deployed.

[0099] Among them, the power system conditions refer to the operating status of the power system, including voltage level, frequency, load characteristics, line impedance, transformer parameters and other conditions; the distributed phase regulator types include: voltage source type DSTATCOM, current source type DSTATCOM, hybrid DSTATCOM and other types; the reactive compensation capacity refers to the maximum reactive power compensation capacity that the distributed phase regulator can provide; the unit capacity refers to the capacity of a single module in the DSTATCOM.

[0100] Further, in an optional embodiment of the present invention, the calculating the reactive compensation capacity of the load center includes:

[0101] determining the apparent power and power factor angle of the load center;

[0102] Based on the apparent power and the power factor angle, the load reactive power of the load center is calculated using the following formula:

[0103]

[0104] Where σ represents the reactive compensation capacity of the load center, D c represents the apparent power of the cth load in the load center, It represents the power factor angle of the cth load in the load center, Indicates the sine value of the power factor angle of the cth load in the load center;

[0105] Based on the load reactive power, the reactive compensation capacity of the load center is calculated.

[0106] The apparent power refers to the product of the current and voltage in the circuit, the power factor angle refers to the phase difference between the voltage and the current, and the load reactive power refers to the reactive power loss caused by the load in the circuit.

[0107] Furthermore, in another optional embodiment of the present invention, the calculating the reactive compensation capacity of the load center based on the load reactive power includes:

[0108] Identify the angular frequency and voltage value of the power grid corresponding to the load center;

[0109] Based on the angular frequency, the voltage value and the load reactive power, the reactive compensation capacity of the load center is calculated using the following formula:

[0110]

[0111] Among them, L represents the reactive compensation capacity of the load center, σ represents the reactive power of the load, ω represents the angular frequency of the power grid corresponding to the load center, and P represents the voltage value of the power grid corresponding to the load center.

[0112] The angular frequency refers to the frequency of voltage and current changes in the power grid, and the voltage value refers to the voltage at a certain point in the power grid.

[0113] S3. Construct a control data model between the distributed phase regulator and the power system, determine the control target of the distributed phase regulator, identify the performance indicators of the power system, and construct a control algorithm and coordination strategy for the distributed phase regulator based on the control data model, the control target and the performance indicators.

[0114] The embodiment of the present invention can realize the basis for efficient control of distributed phase regulators by constructing a control data model between the distributed phase regulator and the power system. The control data model refers to a data structure that describes and analyzes the interaction and information transmission between various components in the control system in the control of the distributed phase regulator and the power grid. In detail, the control data model can be established through power system analysis software (such as PSS / E, DIGITAL PowerFactory, ETAP, etc.).

[0115] Furthermore, in an embodiment of the present invention, the control objectives include: voltage control range, power factor target and other objectives, and the performance indicators refer to a series of parameters and standards used to evaluate the operating status and performance of the power grid, such as voltage stability, power factor, reactive power flow and other indicators.

[0116] Optionally, the control algorithm and coordination strategy of the distributed phase-shifting device constructed based on the control data model, the control target, and the performance index can achieve reactive power management and voltage regulation of the power grid, and improve the stability and power supply quality of the power grid. The control algorithm is a series of mathematical and logical rules for guiding the operation of the distributed phase-shifting device, and the coordination strategy refers to the interaction and collaboration rules between the distributed phase-shifting device and other power grid control devices (such as SCADA systems, protection devices, other distributed phase-shifting devices, etc.).

[0117] Exemplarily, when the control target is voltage control, the control algorithm can achieve the voltage control target by designing PI, PID or adaptive control algorithm. When the control target is transient response, the control algorithm can design a fault response control strategy to ensure that the distributed phase regulator can respond quickly and stabilize the power grid when the power grid is disturbed.

[0118] In detail, the coordination strategy can be implemented by constructing a data exchange mechanism between the distributed phase regulator and the power system equipment.

[0119] S4. Determine a communication protocol between the distributed phase regulator and a corresponding monitoring center of the power system, and establish a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol.

[0120] In the embodiment of the present invention, the communication protocol refers to a protocol for realizing communication between the distributed phase regulator and the corresponding monitoring center of the power system, such as DNP3, Modbus, IEC 61850, etc. In detail, the communication protocol is analyzed according to communication requirements (real-time, reliability, security, compatibility, etc.).

[0121] In the embodiment of the present invention, based on the communication protocol, redundant communication paths between the distributed phase regulator and the monitoring center are established to establish a highly reliable communication network, ensuring a stable connection between the distributed phase regulator and the monitoring center, thereby supporting real-time monitoring and effective control of the power system. The redundant communication paths refer to multiple communication paths set up in the communication system to improve the reliability of communication and the stability of the system.

[0122] As an embodiment of the present invention, the establishing of a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol includes:

[0123] Based on the communication protocol, establishing a main communication path between the distributed phase regulator and the monitoring center;

[0124] Based on the main communication path, establishing a backup communication path between the distributed phase regulator and the monitoring center;

[0125] A redundancy mechanism of the primary communication path and the backup communication path is configured to obtain the redundant communication path.

[0126] Among them, the main communication path refers to the main channel used to realize the network communication between the distributed phase regulator and the monitoring center, the backup communication path refers to the backup channel used when the main communication path fails to work during the network communication between the distributed phase regulator and the monitoring center, and the redundancy mechanism refers to a mechanism that can be implemented in a system. If a communication path fails, the redundant path can automatically or manually take over the communication to ensure the continuity of data transmission and the normal operation of the system, such as STP, RSTP, MSTP and other mechanisms.

[0127] S5. Based on the unit capacity, the control algorithm, the coordination strategy and the redundant communication path, the grid compensation data of the distributed phase regulator after the operation of the power system is collected, and based on the grid compensation data, the corresponding parameters of the distributed phase regulator are optimized to obtain target parameters, and based on the target parameters, reactive power compensation for the power system is performed.

[0128] In an embodiment of the present invention, the grid compensation data refers to the data generated by the reactive power compensation process of the power system by configuring the corresponding unit capacity, control algorithm, coordination strategy and redundant communication path of the distributed phase regulator, such as voltage data, reactive power data, power factor data, and transient response data.

[0129] Optionally, the embodiment of the present invention optimizes the corresponding parameters of the distributed phase regulator based on the grid compensation data to obtain target parameters in order to improve the performance of the distributed phase regulator so that it can more effectively compensate for the reactive power of the grid, improve the voltage quality and improve the stability of the system. The target parameters refer to the parameters after the corresponding parameters of the distributed phase regulator are optimized.

[0130] As an embodiment of the present invention, the optimizing corresponding parameters of the distributed phase condenser based on the power grid compensation data to obtain target parameters includes:

[0131] identifying compensation characteristics of the power grid compensation data;

[0132] Based on the compensation feature, identifying a compensation state of the distributed phase condenser;

[0133] Based on the compensation state, analyzing compensation abnormality of the distributed phase condenser;

[0134] Based on the compensation anomaly, the corresponding parameters of the distributed phase condenser are optimized to obtain target parameters.

[0135] Among them, the compensation characteristics refer to the basic characteristics of the distributed phase regulator in the power grid, including its capacity, response speed, control strategy and other characteristics; the compensation status refers to the actual operating status of the distributed phase regulator in the power grid, including its output power, voltage, current and other parameters; the compensation abnormality refers to the abnormal situation that occurs in the distributed phase regulator during the operation of the power grid, such as overload, overheating, fault and other abnormalities.

[0136] Furthermore, in an optional embodiment of the present invention, based on the compensation abnormality, the corresponding parameters of the distributed phase regulator are optimized to obtain target parameters by analyzing the abnormal cause of the compensation abnormality, determining the optimization target of the compensation abnormality through the abnormal cause, and performing parameter optimization based on the optimization target. For example, the abnormal cause may be overheating due to long-term operation and poor heat dissipation, and the optimization target may be to improve the heat dissipation efficiency. Adjustments may be made to optimize the corresponding heat dissipation efficiency parameters of the distributed phase regulator.

[0137] Finally, the embodiment of the present invention performs reactive power compensation on the power system based on the target parameters to improve the stability of the power system.

[0138] The embodiment of the present invention analyzes the reactive power demand and grid structure of the power system based on the grid data to better understand the operation status of the grid and formulate corresponding reactive power compensation strategies; the embodiment of the present invention configures the distributed phase regulator of the load center based on the reactive power demand of the grid to achieve effective compensation of reactive power and improve the voltage stability and operation efficiency of the grid; the embodiment of the present invention can realize the basis of efficient control of the distributed phase regulator by constructing the control data model between the distributed phase regulator and the power system; further, the embodiment of the present invention establishes a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol to establish a high-reliability communication network to ensure a stable connection between the distributed phase regulator and the monitoring center, thereby supporting real-time monitoring and effective control of the power system. Further, the embodiment of the present invention optimizes the corresponding parameters of the distributed phase regulator based on the grid compensation data to obtain the target parameters in order to improve the performance of the distributed phase regulator, so that it can more effectively compensate for the reactive power of the grid, improve the voltage quality and improve the stability of the system. Finally, the embodiment of the present invention performs reactive power compensation for the power system based on the target parameters to improve the stability of the power system. Therefore, the distributed phase regulator configuration method proposed in the present invention can improve the configuration effect of the distributed phase regulator.

[0139] like Figure 2 , which is a functional module diagram of a distributed phase regulator configuration system provided by an embodiment of the present invention.

[0140] The distributed phase condenser configuration system 200 of the present invention can be installed in an electronic device. According to the functions to be implemented, the distributed phase condenser configuration system 200 can include a load center analysis module 201, a distributed phase condenser configuration module 202, a control algorithm construction module 203, a redundant communication path establishment module 204 and a power grid compensation module 205. The module of the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0141] In this embodiment, the functions of each module / unit are as follows:

[0142] The load center analysis module 201 is used to obtain grid data of the power system, analyze the grid reactive power demand and grid structure of the power system based on the grid data, and identify the load center of the power system based on the grid reactive power demand and the grid structure;

[0143] The distributed phase regulator configuration module 202 is used to configure the distributed phase regulator of the load center based on the reactive power demand of the power grid;

[0144] The control algorithm building module 203 is used to build a control data model between the distributed phase regulator and the power system, determine the control target of the distributed phase regulator, identify the performance index of the power system, and build a control algorithm and coordination strategy for the distributed phase regulator based on the control data model, the control target and the performance index;

[0145] The redundant communication path establishing module 204 is used to determine the communication protocol between the distributed phase regulator and the corresponding monitoring center of the power system, and establish a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol;

[0146] The power system compensation module 205 is used to collect the grid compensation data of the distributed phase regulator after the power system is in operation based on the unit capacity, the control algorithm, the coordination strategy and the redundant communication path, optimize the corresponding parameters of the distributed phase regulator based on the grid compensation data, obtain target parameters, and perform reactive power compensation for the power system based on the target parameters.

[0147] In detail, each module described in the distributed phase condenser configuration system 200 described in the embodiment of the present invention adopts the same technical means as the distributed phase condenser configuration method described in the accompanying drawings when used, and can produce the same technical effects, which will not be repeated here.

[0148] An embodiment of the present invention provides an electronic device for implementing a distributed phase condenser configuration method.

Claims

1. A distributed phase condenser configuration method, characterized in that: The method comprises: Acquire grid data of the power system, analyze the grid reactive power demand and grid structure of the power system based on the grid data, and identify the load center of the power system based on the grid reactive power demand and the grid structure; the load center refers to the area with the largest reactive power demand in the grid; Based on the reactive power demand of the power grid, configuring the distributed phase regulator of the load center; Constructing a control data model between the distributed phase regulator and the power system, determining a control target of the distributed phase regulator, identifying a performance indicator of the power system, and constructing a control algorithm and coordination strategy for the distributed phase regulator based on the control data model, the control target, and the performance indicator; Determine a communication protocol between the distributed phase regulator and a corresponding monitoring center of the power system, and establish a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol; Based on the unit capacity, the control algorithm, the coordination strategy and the redundant communication path, the grid compensation data of the distributed phase regulator after the operation of the power system is collected, and based on the grid compensation data, the corresponding parameters of the distributed phase regulator are optimized to obtain target parameters, and based on the target parameters, reactive power compensation of the power system is performed; The configuring the distributed phase regulator of the load center based on the reactive power demand of the power grid includes: determining a grid condition of the load center; Determining the type of distributed phase regulator at the load center based on the power system conditions and the reactive power demand of the power grid; Calculating reactive power compensation capacity of the load center; Based on the reactive power compensation capacity, configuring the unit capacity of the distributed phase condenser type; Deploying the distributed phase regulator at the load center based on the type of the distributed phase regulator and the unit capacity; The calculating the reactive compensation capacity of the load center includes: determining the apparent power and power factor angle of the load center; Based on the apparent power and the power factor angle, the load reactive power of the load center is calculated using the following formula: ； in, Indicates the reactive power compensation capacity of the load center, Indicates the load center The apparent power of a load, Indicates the load center The power factor angle of the load, Indicates the load center The sine value of the power factor angle of the load; Calculating reactive power compensation capacity of the load center based on the load reactive power; The calculating the reactive compensation capacity of the load center based on the load reactive power includes: Identify the angular frequency and voltage value of the power grid corresponding to the load center; Based on the angular frequency, the voltage value and the load reactive power, the reactive compensation capacity of the load center is calculated using the following formula: ； in, Indicates the reactive power compensation capacity of the load center, Indicates the load reactive power, Indicates the angular frequency of the power grid corresponding to the load center, Indicates the voltage value of the power grid corresponding to the load center; The angular frequency refers to the frequency of voltage and current changes in the power grid, and the voltage value refers to the voltage at a certain point in the power grid; The establishing of a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol includes: Based on the communication protocol, establishing a main communication path between the distributed phase regulator and the monitoring center; Based on the main communication path, establishing a backup communication path between the distributed phase regulator and the monitoring center; A redundancy mechanism of the primary communication path and the backup communication path is configured to obtain the redundant communication path.

2. The distributed phase condenser configuration method according to claim 1, characterized in that: The analyzing the grid reactive power demand and grid structure of the power system based on the grid data includes: Preprocessing the power grid data to obtain preprocessed power grid data; Based on the pre-processed power grid data, a power flow analysis is performed on the power system to obtain a power flow analysis result; Analyzing the reactive power demand of the power system based on the power flow analysis result; Based on the preprocessed grid data, identifying a component topology of the power system; Based on the component topology diagram, a grid structure of the power system is determined.

3. The distributed phase condenser configuration method according to claim 2, characterized in that: The analyzing the reactive power demand of the power system based on the power flow analysis result includes: Analyzing the reactive power demand influencing factors of the power system; Identifying the influence relationship of the reactive demand influencing factor on the reactive demand of the power system; Based on the power flow analysis result, identifying the impact factor value of the reactive demand impact factor; Based on the impact factor value and the reactive power demand impact relationship, the grid reactive power demand of the power system is determined.

4. The distributed phase condenser configuration method according to claim 1, characterized in that: The identifying the load center of the power system based on the reactive power demand of the power grid and the power grid structure includes: Serializing the reactive power demand of the power grid to obtain a serialized reactive power demand; Mark the serialized reactive power demand corresponding to the target reactive power demand with the maximum reactive power; Based on the power grid structure, locating reactive power demand coordinates of the target reactive power demand; The reactive power demand coordinates are used as the load center of the power system.

5. The distributed phase condenser configuration method according to claim 1, characterized in that: The step of optimizing the corresponding parameters of the distributed phase regulator based on the power grid compensation data to obtain target parameters includes: identifying compensation characteristics of the power grid compensation data; Based on the compensation feature, identifying a compensation state of the distributed phase condenser; Based on the compensation state, analyzing compensation abnormality of the distributed phase condenser; Based on the compensation anomaly, the corresponding parameters of the distributed phase condenser are optimized to obtain target parameters.

6. A distributed phase condenser configuration system, characterized in that: The system is used to execute the distributed phase condenser configuration method according to any one of claims 1 to 5, the system comprising: A load center analysis module, used to obtain grid data of the power system, analyze the grid reactive power demand and grid structure of the power system based on the grid data, and identify the load center of the power system based on the grid reactive power demand and the grid structure; A distributed phase regulator configuration module, configured to configure the distributed phase regulator of the load center based on the reactive power demand of the power grid; A control algorithm building module, used to build a control data model between the distributed phase regulator and the power system, determine the control target of the distributed phase regulator, identify the performance index of the power system, and build a control algorithm and coordination strategy for the distributed phase regulator based on the control data model, the control target and the performance index; A redundant communication path establishing module, used to determine the communication protocol between the distributed phase regulator and the corresponding monitoring center of the power system, and to establish a redundant communication path between the distributed phase regulator and the monitoring center based on the communication protocol; A power grid compensation module is used to collect power grid compensation data of the distributed phase regulator after the operation of the power system based on the unit capacity, the control algorithm, the coordination strategy and the redundant communication path, optimize corresponding parameters of the distributed phase regulator based on the power grid compensation data, obtain target parameters, and perform reactive power compensation for the power system based on the target parameters.

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