Nuclear power unit primary frequency modulation remote disturbance test method, system, device and medium

Abstract

The application discloses a nuclear power unit primary frequency modulation remote disturbance test method, system, device and medium, relates to the related technical field of nuclear power unit test, and the method comprises the following steps: interacting with the installed configuration of the primary frequency modulation homologous device of the nuclear power unit, constructing a test loop; for the test loop, dividing test main lines and test auxiliary lines, and constructing a test control module; receiving a frequency modulation task; based on the test control module, load adjustment decision and condition compensation are carried out on the frequency modulation task, and a pre-frequency modulation strategy is determined; based on the pre-frequency modulation strategy, the frequency difference of the nuclear power unit is controlled. The technical problems that the existing technology cannot effectively respond to the frequency modulation requirements brought by larger disturbances or remote scheduling instructions, and thus it is difficult to ensure the stability of the nuclear power unit while quickly and accurately responding to the frequency change are solved, and the technical effects of improving the stable operation and response performance in the process of the nuclear power unit primary frequency modulation remote large disturbance test are achieved.

Description

Technical Field

[0001] This application relates to the technical field of nuclear power unit testing, specifically to the method, system, equipment and medium for remote disturbance testing of primary frequency regulation of nuclear power units. Background Technology

[0002] The power grid regularly conducts remote large-disturbance tests on primary frequency regulation units to ensure stable grid operation. By simulating disturbance scenarios with large frequency differences, the tests verify the adequacy of primary frequency regulation resources, the agility of the control system, and the multi-regional coordination capabilities. Currently, remote large-disturbance tests on primary frequency regulation units of thermal power units in Shandong and Jiangsu provinces have become routine.

[0003] With the large-scale integration of new energy sources (such as photovoltaics and wind power), the inertia of the power system has decreased, leading to a reduction in the grid's frequency regulation capability and making it more prone to fluctuations. In economically developed provinces in China, the high electricity demand and the volatility and uncertainty of new energy sources place higher demands on grid stability. In recent years, with the significant acceleration of nuclear power unit construction, the proportion of nuclear power in the electricity supply has been increasing, playing an increasingly important role in primary frequency regulation. Shandong Province has already required nuclear power units to regularly undergo remote large-disturbance testing for primary frequency regulation. This involves monthly testing of the primary frequency regulation comprehensive indicators by a computer system when there are no major disturbances in the grid frequency. This is a first for nuclear power units nationwide. Remote large-disturbance testing for primary frequency regulation tests is a challenge to the operational stability and load regulation speed of nuclear power units, necessitating the development of new technologies to improve their stable operation and response performance during such tests. Summary of the Invention

[0004] This application provides a method, system, equipment, and medium for remote disturbance testing of primary frequency regulation in nuclear power units, thereby improving the operational stability and load regulation speed of nuclear power units during remote large disturbance testing of primary frequency regulation.

[0005] This application provides a method for remote disturbance testing of primary frequency regulation in nuclear power units. The method includes: configuring the primary frequency regulation co-source device of the nuclear power unit to construct a test loop, wherein the configuration is a dual-redundant configuration, including hardware equipment and software logic configuration; dividing the test loop into a main test line and a secondary test line, and constructing a test control module, wherein the main test line is variable load frequency regulation control, and the secondary test line performs main line control compensation; receiving a frequency regulation task, wherein the frequency regulation task is a grid frequency regulation command or a remote disturbance test command, the remote disturbance test command is remotely generated and sent primary frequency regulation load information, and the grid frequency regulation command is a grid frequency signal based on sensor acquisition; based on the test control module, performing load adjustment decision and condition compensation on the frequency regulation task to determine a pre-frequency regulation strategy; and based on the pre-frequency regulation strategy, performing load frequency difference frequency regulation control on the nuclear power unit.

[0006] In a possible implementation, the construction of the test control module further includes the following processes: for the main test line, constructing an adjustment logic block based on the linear load adjustment relationship of the power grid frequency fluctuation; for the auxiliary test line, constructing a DCS logic block with distributed logic conditions as the compensation target; coordinating the adjustment logic block and the DCS logic block, and performing sample-driven training to generate the test control module.

[0007] In a possible implementation, to obtain the linear load regulation relationship, the following processing is also performed: historical frequency regulation records of the nuclear power unit are retrieved, and based on the preset load fluctuation of the power grid, clustering is performed to determine N clusters; the first cluster is identified, and the first frequency regulation node is identified, wherein the first frequency regulation node includes a first load fluctuation vector and a first regulation parameter, the first load fluctuation vector being the mean load fluctuation within the cluster, and the first regulation parameter being the ensemble value of the regulation parameters within the cluster; the N clusters are traversed to determine the Nth frequency regulation node, and curve transformation is performed on the first frequency regulation node up to the Nth frequency regulation node to determine the linear load regulation relationship.

[0008] In a possible implementation, the construction of the DCS logic block further includes the following processing: performing dual-path switching for the primary frequency regulation load adjustment command generated by the grid frequency and the primary frequency regulation load adjustment command generated by the turbine speed deviation, wherein the primary frequency regulation load adjustment command generated by the grid frequency comes from the same source device, and the switching is triggered by the anomaly of the same source device; setting the maximum value of the load fluctuation frequency regulation, and generating control limiting conditions for the frequency regulation load command fluctuation constraint; when there is an anomaly in the primary frequency regulation same source device, sending an alarm command to the DCS so that the DCS rejects the frequency regulation command; and configuring the DCS logic block of the test auxiliary line based on the dual-path switching, the control limiting conditions, and the alarm command.

[0009] In a possible implementation, the remote disturbance test command performs load adjustment decision and condition compensation to determine the pre-frequency adjustment strategy, and also performs the following processing: based on whether an alarm command is received, the frequency adjustment task is judged to determine if there is an anomaly, and a judgment result is generated; if the judgment result is normal, based on the adjustment logic block, a first frequency adjustment strategy is determined by performing a linear adjustment decision on the load frequency conversion; the first frequency adjustment strategy is transferred to the DCS logic block, and combined with the control limiting condition, the first frequency adjustment strategy is judged to exceed the limit and undergoes multi-step conversion, and a pre-frequency adjustment strategy is determined through condition constraint compensation.

[0010] In a possible implementation, after frequency regulation control of the load frequency difference of the nuclear power unit, the following processing is also performed: based on the primary frequency regulation standard, an index evaluation matrix is ​​set, wherein the index evaluation matrix has evaluation indicators as matrix rows and multiple evaluation levels as matrix columns; based on the sensor group, the primary frequency regulation response of the nuclear power unit is monitored to determine the frequency regulation response data; according to the index evaluation matrix, the frequency regulation response data is evaluated by single indicators and weighted comprehensive calculation to determine the frequency regulation test result.

[0011] In a possible implementation, the nuclear power unit primary frequency regulation remote disturbance test method further performs the following processing: based on the sensor group, monitoring the frequency regulation control status of the first parallel branch, wherein the first parallel branch is the primary frequency regulation device currently performing frequency regulation control in the dual-redundancy configuration; determining the fault in the frequency regulation control status, switching to the second parallel branch for frequency regulation control, and suspending the frequency regulation control of the first parallel branch.

[0012] This application also provides a remote disturbance testing system for primary frequency regulation of nuclear power units, comprising: a test loop construction module for constructing a test loop by interacting with the installation configuration of the primary frequency regulation co-source device of the nuclear power unit, wherein the installation configuration is a dual-redundant configuration, including hardware equipment and software logic configuration; a test control module construction module for dividing the test loop into a main test line and a secondary test line, and constructing a test control module, wherein the main test line is variable load frequency regulation control, and the secondary test line performs main line control compensation; a frequency regulation task receiving module for receiving frequency regulation tasks, wherein the frequency regulation task is a grid frequency regulation command or a remote disturbance test command, the remote disturbance test command is remotely generated and sent primary frequency regulation load information, and the grid frequency regulation command is a grid frequency signal based on sensor acquisition; a pre-frequency regulation strategy determination module for determining a pre-frequency regulation strategy by performing load adjustment decisions and condition compensation for the frequency regulation task based on the test control module; and a frequency regulation control module for performing load frequency difference frequency regulation control of the nuclear power unit based on the pre-frequency regulation strategy.

[0013] This application also provides an electronic device, including: a memory for storing executable instructions; and a processor for implementing a remote disturbance test method for primary frequency regulation of a nuclear power unit when executing the executable instructions stored in the memory.

[0014] This application also provides a computer-readable storage medium, including: a computer program stored thereon, which, when executed by a processor, implements a method for remote disturbance testing of primary frequency regulation of a nuclear power unit.

[0015] This application proposes a method, system, equipment, and medium for remote disturbance testing of primary frequency regulation in nuclear power units. It involves configuring the primary frequency regulation co-source device of the nuclear power unit to construct a test loop. For the test loop, a main test line and a secondary test line are defined, and a test control module is constructed. Frequency regulation tasks are received. Based on the test control module, load adjustment decisions and condition compensation are performed on the frequency regulation tasks to determine a pre-frequency regulation strategy. Based on the pre-frequency regulation strategy, frequency regulation control of the nuclear power unit based on the load frequency difference is implemented. This solves the technical problem in existing technologies where the frequency regulation requirements brought about by large disturbances or remote dispatch commands cannot be effectively handled, leading to difficulties in quickly and accurately responding to frequency changes while ensuring the stability of the nuclear power unit. This achieves the technical effect of improving the stable operation and response performance during remote large disturbance testing of primary frequency regulation in nuclear power units. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments of this disclosure will be briefly described below. Flowcharts are used in this application to illustrate the operations performed by the system according to the embodiments of this application. It should be understood that the preceding or following operations are not necessarily performed precisely in sequence. Instead, various steps can be processed in reverse order or simultaneously as needed. Furthermore, other operations can be added to these processes, or one or more steps can be removed from these processes.

[0017] Figure 1 This is a schematic flowchart of a remote disturbance test method for primary frequency regulation of a nuclear power unit provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram illustrating the construction process of the test control module in the remote disturbance test method for primary frequency regulation of nuclear power units provided in this application embodiment.

[0019] Figure 3 A schematic diagram of the structure of a remote disturbance test system for primary frequency regulation of a nuclear power unit provided in an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached drawings: Test loop construction module 10, Test control module construction module 20, Frequency modulation task receiving module 30, Pre-frequency modulation strategy determination module 40, Frequency modulation control module 50, Input device 401, Processor 402, Memory 403, Output device 404. Detailed Implementation

[0022] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below.

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application will be provided in conjunction with the accompanying drawings. The described embodiments should not be considered as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the following description, references to "some embodiments" describe a subset of all possible embodiments. However, it is understood that "some embodiments" can be the same or different subsets of all possible embodiments and can be combined with each other without conflict. The terms "first" and "second" are used merely to distinguish similar objects and do not represent a specific ordering of objects. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or modules not explicitly listed or inherent to these processes, methods, products, or devices. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only.

[0025] This application provides a method for remote disturbance testing of primary frequency regulation in nuclear power units, such as... Figure 1 As shown, the method includes:

[0026] Step S100: Configure the primary frequency regulation device of the interactive nuclear power unit and construct a test circuit. The configuration is a dual-redundant configuration, which includes hardware equipment and software logic configuration.

[0027] Preferably, the installation configuration of the primary frequency regulation co-source device for the interactive nuclear power unit refers to the intelligent control device for primary frequency regulation of the nuclear power unit. Primary frequency regulation refers to the nuclear power unit adjusting its output power according to the changes in the grid frequency when the grid frequency fluctuates, in order to help maintain the frequency stability of the grid. The co-source device indicates that these devices have consistency and coordination. The installation configuration refers to a dual-redundant configuration, which includes hardware devices (including high-frequency and high-precision sensors, actuators for load regulation, etc.) and software logic configuration (including control strategies and load regulation strategies that are dynamically adjusted based on grid power changes). Specifically, the primary frequency regulation co-source device uses high-frequency, high-precision sensors to achieve high-speed, high-precision acquisition of grid frequency signals. The measurement data is synchronized, resulting in high control accuracy, rapid response, and a reasonable control scheme. It employs a control strategy based on dynamic adjustments to grid power variations, acquiring frequency signals and applying different action amplitudes to different grid frequency differences. The software logic of the primary frequency regulation co-source device enables seamless connection between signal acquisition and control, directly outputting control commands. Redundant configuration refers to configuring two primary frequency regulation intelligent control devices in the primary frequency regulation optimization system of a single unit, simultaneously acquiring frequency signals. Even if one device fails, system safety will not be affected. Finally, a test loop is constructed, consisting of hardware and software modules, to simulate actual scenarios such as grid frequency fluctuations or load changes, testing the performance of the nuclear power unit's primary frequency regulation device to ensure it can perform frequency regulation tasks as expected in actual operation, thus guaranteeing grid stability.

[0028] Step S200: For the test circuit, divide it into a main test line and a secondary test line, and construct a test control module. The main test line is a variable load frequency regulation control, and the secondary test line performs main line control compensation.

[0029] Preferably, the test loop is divided into two critical paths with different functions: the main test line and the auxiliary test line. The main and auxiliary lines undertake different functions and tasks, typically configured in the test system to ensure comprehensive verification. Specifically, the main test line is the core channel of the test system, primarily responsible for implementing the system's basic functions. The main test line performs variable load frequency regulation control, meaning the nuclear power unit dynamically adjusts its output load according to grid frequency fluctuations. Variable load frequency regulation control is the core task of nuclear power unit frequency regulation control, adjusting the unit's power generation based on grid frequency changes to ensure grid frequency stability. The auxiliary test line performs main line control compensation, not directly performing main load regulation, but optimizing the main line through a compensation mechanism. The frequency regulation control effect is achieved by making necessary compensations or adjustments based on the load regulation results of the main test line to ensure the accuracy and stability of the frequency regulation control. For example, when the main system is regulated, the auxiliary line can detect potential errors during the load adjustment process and make corrections (such as adjusting the amplitude and frequency of the output power in a timely manner) to avoid deviations caused by delays or external interference. Finally, a test control module is constructed to coordinate the main test line and the auxiliary test line. Through unified control logic, it monitors the operating status of the main line and the auxiliary line and decides when to start the compensation function and when to adjust the control strategy. The test control module needs to make real-time decisions based on the frequency regulation command of the power grid or the frequency regulation response of the nuclear power unit to ensure the efficiency and accuracy of the overall control process.

[0030] Step S300: Receive frequency regulation task, wherein the frequency regulation task is a power grid frequency regulation command or a remote disturbance test command, the remote disturbance test command is a remotely generated and sent primary frequency regulation load information, and the power grid frequency regulation command is a power grid frequency signal based on sensor acquisition.

[0031] Preferably, receiving frequency regulation tasks refers to receiving two types of input task signals that the nuclear power unit needs to process during frequency regulation testing. Among them, the frequency regulation task is either a grid frequency regulation command or a remote disturbance test command. Specifically, the grid frequency regulation command is a grid frequency signal based on sensor acquisition, that is, a frequency regulation command generated by the nuclear power plant side through the real-time frequency deviation collected by sensors. It serves as the basic signal for the nuclear power unit to adjust its power generation output. For example, if the grid suddenly experiences a load increase or decrease, causing the frequency to deviate from the set value, or if the nuclear power unit needs to participate in the grid frequency recovery process in a short period of time, the grid frequency regulation command directly triggers the nuclear power unit's rapid frequency regulation response by monitoring the frequency deviation at the measurement point. By adjusting the output power of the nuclear power unit, it helps the grid restore frequency stability. Furthermore, the grid frequency regulation command has immediate and high dynamic requirements, requiring the system to have a rapid response capability.

[0032] Preferably, the remote disturbance test command is a remotely generated and sent primary frequency regulation load command, that is, a frequency regulation load command generated by the remote dispatch center and sent to the nuclear power unit. It usually includes pre-planned load adjustment signals to guide the nuclear power unit to complete specific frequency regulation tasks. The grid frequency regulation command is based on dynamically changing real-time signals and is usually processed directly by the local control module, while the remote disturbance test command is a test signal sent by the dispatch center. The grid frequency regulation command relies on sensor acquisition and real-time processing by the control module, while the remote disturbance test command relies on remote communication from the dispatch center. By processing these two types of signals simultaneously, the test module can verify the nuclear power unit's response capability and load adjustment performance in frequency control tasks, thereby ensuring that the nuclear power unit can effectively support grid stability in actual operation.

[0033] Step S400: Based on the test control module, perform load adjustment decision and condition compensation for the frequency modulation task to determine the pre-frequency modulation strategy.

[0034] Preferably, the frequency regulation task is processed using a test control module, including load adjustment decisions and condition compensation, to determine a pre-regulation strategy to optimize the frequency regulation effect. The test control module is the core of the control system. Based on the received frequency regulation task, it analyzes and makes decisions based on various information (such as grid frequency status, current unit load, system dynamic performance, etc.). Specifically, it determines the pre-regulation strategy based on the current unit status and grid demand. Load adjustment decisions refer to determining how the nuclear power unit needs to adjust its output power (load) according to the specific requirements of the frequency regulation task (such as grid frequency deviation or scheduling plan). The decision may include determining the increment or decrement of load adjustment based on the magnitude of the grid frequency deviation; determining the time range of load adjustment to ensure that the adjustment is completed within the tolerance time of grid frequency fluctuations; prioritizing grid frequency stability requirements in multi-task situations, with secondary consideration given to the scheduling plan; for example, calculating the deviation between the current load and the target load through real-time monitoring of the grid frequency signal, and combining this with the dynamic response capability of the nuclear power unit (such as the maximum load change rate) to formulate a feasible adjustment path.

[0035] Preferably, conditional compensation refers to optimizing and compensating for potential external disturbances (such as unexpected changes in grid load) or internal nonlinearities (such as delays or errors in the dynamic response of nuclear power units) that may occur during frequency regulation. This may include real-time adjustments to the initial decision based on actual load response data during regulation; precise compensation through feedback control mechanisms when an error is detected between the target load and the actual load; dynamic modification of frequency regulation parameters based on the operating status of the nuclear power unit (such as cooling water temperature, fuel consumption status, etc.) and external environmental conditions; for example, secondary optimization of frequency regulation decisions using real-time data collected by sensors (such as frequency change rate, load adjustment delay), or through advanced control (such as fuzzy control, pre-... (Measurement and control) Predict possible disturbances and take measures in advance; then determine the pre-regulation strategy, that is, determine the adjustment plan before the frequency regulation task is executed, which is used to guide the nuclear power unit to achieve efficient load adjustment in the subsequent frequency regulation process. For example, according to the grid frequency regulation command or remote disturbance test command, set the target value of load adjustment, and optimize the time and power allocation of load adjustment by using historical operating data and simulation test results while ensuring the safety of the nuclear power unit. At the same time, consider the equipment limitations of the nuclear power unit (such as the maximum regulation speed) and grid demands (such as frequency recovery time requirements) to ensure the feasibility of the strategy, thereby ensuring that the nuclear power unit can quickly and stably complete the frequency regulation task when the grid frequency fluctuates, and at the same time provide safety guarantee for operation under complex grid conditions.

[0036] Furthermore, such as Figure 2 As shown, step S400 further includes step S410, constructing an adjustment logic block for the main test line based on the linear load adjustment relationship of the power grid frequency fluctuation; step S420, constructing a DCS logic block for the auxiliary test line with distributed logic conditions as the compensation target; and step S430, coordinating the adjustment logic block and the DCS logic block, and performing sample-driven training to generate the test control module.

[0037] Preferably, by designing and training adjustment logic blocks (mainline frequency regulation control) and DCS logic blocks (compensation control), a test control module capable of coping with grid frequency fluctuations and complex interferences is generated. Specifically, based on the linear load regulation relationship of grid frequency fluctuations, an adjustment logic block is constructed, which is mainly responsible for the adjustment decision of the nuclear power unit load. The linear load regulation relationship of grid frequency fluctuations refers to the linear relationship between grid frequency fluctuations and power plant load regulation. When the grid frequency increases, the load regulation will decrease, and conversely, when the grid frequency decreases, the load regulation will increase. Based on the linear relationship of grid frequency fluctuations, the adjustment logic block is used to calculate the amount of load adjustment required by the nuclear power unit. Based on the magnitude and direction of the grid frequency change, it determines how to adjust the output power (load) of the nuclear power unit to respond to grid frequency fluctuations and restore frequency stability.

[0038] Preferably, a DCS logic block is constructed with distributed logic conditions as the compensation target. This block is primarily responsible for compensating and optimizing errors and interferences during frequency regulation. Distributed logic conditions refer to various complex factors that need to be considered during power grid frequency regulation, such as combinations of conditions at different locations, with different equipment, and at different times. Therefore, by using distributed logic conditions as the compensation target, a DCS logic block is constructed to address various interferences and errors that occur during load regulation using distributed logic rules. The DCS (Distributed Control System) logic block is a distributed control compensation module used to compensate for complex factors affecting power grid frequency fluctuations, thereby optimizing the frequency regulation response of nuclear power units. Based on multiple input conditions, the DCS logic block employs distributed computing methods to adjust and correct potential errors or imperfect responses in the mainline frequency regulation logic. For example, when a large disturbance occurs in the system, it combines multiple sensors, historical data, and system status, utilizing distributed computing (such as local optimization and network cooperation) to dynamically adjust the control strategy, providing accurate compensation signals, correcting the mainline load regulation strategy, and ensuring system stability.

[0039] Preferably, the regulating logic block and the DCS logic block work together to optimize the frequency regulation control strategy through sample-driven training. Specifically, the regulating logic block and the DCS logic block cooperate to achieve optimal frequency regulation control. The regulating logic block is responsible for initial adjustments based on grid load changes, while the DCS logic block is responsible for compensating and optimizing the regulating logic based on complex environmental conditions. This collaborative work ensures more accurate and efficient frequency regulation response from the nuclear power unit. Sample-driven training refers to collecting a large amount of actual data samples of grid frequency fluctuations and load adjustments (such as historical data of grid frequency fluctuations and nuclear power unit response data) as sample data for training and optimization. This continuously adjusts and optimizes the parameters of the regulating logic block and the DCS logic block, enabling them to execute frequency regulation tasks more accurately in actual operation. Ultimately, they jointly generate a test control module that integrates the linear response of the mainline frequency regulation control and the complex compensation of the auxiliaryline compensation control. This module is applied in real-time to the nuclear power unit, automatically adjusting the load and compensating for external interference to ensure grid frequency stability.

[0040] Furthermore, step S410 also includes step S411, calling up the historical frequency regulation records of the nuclear power unit, performing clustering processing based on the preset load fluctuation of the power grid, and determining N clusters; step S412, identifying the first cluster and mining the first frequency regulation node, wherein the first frequency regulation node includes a first load fluctuation vector and a first adjustment parameter, the first load fluctuation vector is the average load fluctuation within the cluster, and the first adjustment parameter is the concentrated value of the adjustment parameters within the cluster; step S413, traversing the N clusters, determining the Nth frequency regulation node, and performing curve transformation on the first frequency regulation node up to the Nth frequency regulation node to determine the linear load regulation relationship.

[0041] Preferably, by clustering analysis of historical frequency regulation data of nuclear power units and grid frequency fluctuation patterns, different frequency regulation response patterns (i.e., frequency regulation nodes) are identified. By fitting these patterns, a linear relationship between grid frequency fluctuations and nuclear power unit frequency regulation responses is established. Historical frequency regulation records of nuclear power units are retrieved, and clustering is performed based on preset grid load fluctuations. These historical frequency regulation records refer to past frequency regulation records of nuclear power units under different grid conditions (such as load changes and frequency adjustments). Grid load fluctuations are typically set based on grid load demand and historical fluctuation characteristics. Preset load fluctuations help determine possible load changes in the grid within a specific time period. Then, by comparing historical frequency regulation records with these... By clustering based on preset load fluctuations, similar frequency regulation patterns can be divided into several clusters to identify different load fluctuation patterns and analyze their corresponding frequency regulation responses. Each cluster represents the frequency regulation pattern of the power grid under specific load fluctuation conditions. Then, one cluster is randomly selected as the first cluster, and the corresponding first frequency regulation node is mined, which is a representative load fluctuation and regulation parameter. Specifically, it includes the first load fluctuation vector and the first regulation parameter. The first load fluctuation vector is the mean of all load fluctuation data in the cluster, representing the typical characteristics of power grid frequency fluctuations in this cluster. The first regulation parameter is the concentrated value of all frequency regulation control parameters in the cluster, representing the load regulation characteristics of nuclear power units under this load fluctuation mode.

[0042] Preferably, all clusters are traversed to determine N frequency regulation nodes corresponding to N clusters, where N is a positive integer. Then, curve transformation is performed on the first frequency regulation node to the Nth frequency regulation node. Specifically, by processing the frequency regulation nodes in multiple clusters (from the first cluster to the Nth cluster), these discrete node data are transformed into a continuous curve. This includes connecting the frequency fluctuation of each frequency regulation node with the regulation parameters through curve fitting or interpolation methods, thereby determining the linear load regulation relationship, that is, the linear load regulation relationship between the frequency fluctuation and the regulation parameters. In other words, a mathematical model (such as a linear regression model) can be used to describe the relationship between grid frequency fluctuation and nuclear power unit frequency regulation response. For example, how the amplitude of frequency fluctuation affects the change of nuclear power unit regulation parameters, or the relationship between a certain frequency change and the unit regulation output, helps to provide nuclear power units with more accurate frequency regulation control strategies, thereby improving the efficiency of grid frequency regulation response.

[0043] Furthermore, step S420 also includes step S421, performing dual-path switching for the primary frequency regulation load adjustment command generated by the grid frequency and the primary frequency regulation load adjustment command generated by the turbine speed deviation, wherein the primary frequency regulation load adjustment command generated by the grid frequency comes from the same source device, and the switching is triggered by the abnormality of the same source device; step S422, setting the maximum value of the load fluctuation frequency regulation, and generating the control limit condition for the frequency regulation load command fluctuation constraint; step S423, when there is an abnormality in the primary frequency regulation same source device, sending an alarm command to the DCS so that the DCS rejects the frequency regulation command; step S424, configuring the DCS logic block of the test auxiliary line based on the dual-path switching, the control limit condition and the alarm command.

[0044] Preferably, the dual-redundancy configuration consists of two independent sets of primary frequency regulation devices connected in parallel. These two sets of devices operate in parallel, each independently executing the same frequency regulation task to avoid affecting normal operation due to a single channel failure. The parallel operation of the two sets of primary frequency regulation devices means that both sets of equipment execute tasks simultaneously, triggered by a single control anomaly. That is, if one set of equipment fails, the other set can immediately take over the task, thus performing a dual-path switchover. When an anomaly or fault occurs, the switchover is triggered by a single set of primary frequency regulation devices experiencing an anomaly (e.g., equipment failure, excessive control error, etc.), switching to the other set of devices to continue executing the frequency regulation task. For example, if the frequency adjustment response of the main device exceeds the allowable range. Furthermore, a maximum value for load fluctuation frequency regulation is set as a control limit condition for the frequency regulation load command fluctuation constraint. This maximum value is limited by the unit's capacity, and the control limit condition restricts the magnitude of load adjustment, ensuring that the load adjustment of the nuclear power unit does not exceed its allowable range during frequency regulation, preventing excessive load fluctuations that could lead to over-adjustment or instability of the nuclear power unit, thereby ensuring the stability of the power grid frequency.

[0045] Preferably, the critical power is used as the minimum or maximum power value for frequency regulation of the nuclear power unit in the frequency regulation command. Based on the set critical power value, an alarm logic for judging abnormal input commands from the primary frequency regulation source device is added. This includes determining whether the critical power range is exceeded, and then deciding whether to trigger an alarm. For example, if the grid frequency fluctuation exceeds the normal range, and the command requires the unit's load adjustment to reach a certain critical value, an alarm condition will be triggered. Examples include: input command deterioration alarm; input command greater than ±0.5MW, delayed pulse alarm; input command ≥ ±37.5MW, alarm. This ensures that the system can respond promptly and take effective measures when abnormalities occur, avoiding instability due to over-adjustment or improper operation. For example, when the primary frequency regulation source device switches to the large disturbance test mode (remotely controlled by the grid dispatch system via RTU), the large disturbance test response signal... Simultaneously, the signal is sent to the DCS to implement a large disturbance test alarm function, reminding operators to pay attention to load changes. Finally, based on the dual-path switching conditions, control limiting conditions, and alarm command conditions, the DCS logic block of the test auxiliary line is configured. That is, compensation is made according to the deviation and external disturbance in actual operation, so that the nuclear power unit can perform frequency regulation tasks more accurately and maintain grid frequency stability. Specifically, according to the aforementioned dual-path switching, the control limiting conditions, and the alarm command, the DCS logic block will be configured accordingly to achieve precise control and optimization of the frequency regulation process. For example, if the main line regulation exceeds the set range, the DCS logic block will correct and compensate the main line regulation logic based on real-time data (such as load fluctuations, frequency changes, etc.), adjust the load regulation amount, ensure that the nuclear power unit works efficiently and stably in a complex and dynamic grid environment, and ensure the stable operation of the grid.

[0046] Furthermore, step S421 also includes step S421a, which monitors the frequency modulation control status of the first parallel branch based on the sensor group, wherein the first parallel branch is the primary frequency modulation device currently performing frequency modulation control in the dual-path redundancy configuration; step S421b, which determines the fault status of the frequency modulation control, switches to the second parallel branch for frequency modulation control, and suspends the frequency modulation control of the first parallel branch.

[0047] Preferably, in the dual-redundancy configuration, the first parallel branch refers to the primary frequency regulation device currently performing frequency regulation control tasks. A sensor array (such as a grid frequency sensor, load sensor, and other monitoring equipment related to frequency regulation) is used to collect real-time data on the operating status (such as load adjustment, frequency correction, power changes, etc.) and operation of the first parallel branch. This ensures that the branch's regulation response meets expectations, promptly detects potential faults, and then performs fault determination on the frequency regulation control status to determine whether the first parallel branch is operating normally. Specifically, if the frequency regulation control status is abnormal (such as inability to respond to frequency changes, load adjustment exceeding allowable range, equipment failure, etc.), a fault is triggered. The system issues a fault determination and generates a dual-path switching command. When a device malfunctions or becomes abnormal, it can promptly detect the fault and switch from the currently used first parallel branch to the second parallel branch (i.e., the redundant branch) to continue frequency regulation control, preventing the power grid's frequency regulation task from being affected. The second parallel branch is usually a backup or redundant control path. When the first parallel branch fails, it will take over the frequency regulation control. After switching to the second parallel branch, the frequency regulation control of the first parallel branch will be suspended to prevent conflicts or repeated adjustments when the two branches are working simultaneously, which would affect the frequency regulation effect. This enhances the system's reliability and fault tolerance, ensuring the stable operation of the power grid's frequency regulation task.

[0048] Furthermore, step S400 also includes step S440, which determines whether the frequency regulation task is abnormal based on whether an alarm command is received, and generates a determination result; step S450, if the determination result is normal, a first frequency regulation strategy is determined based on the adjustment logic block by executing a linear adjustment decision of the load frequency conversion; step S460, the first frequency regulation strategy is transferred to the DCS logic block, and combined with the control limiting condition, the first frequency regulation strategy is subjected to over-limit determination and multi-step conversion, and a pre-frequency regulation strategy is determined through condition constraint compensation.

[0049] Preferably, by real-time monitoring of the frequency regulation task, anomalies are determined based on the command alarm conditions to identify abnormal or inconsistent situations in the frequency regulation task. That is, by judging whether the command triggers the alarm condition, it is confirmed whether the frequency regulation task is executed normally. If the command does not exceed the preset range, the task is considered to be executed normally; if there is an anomaly, an alarm will be triggered, and corresponding remedial measures will be taken according to the judgment result, and this normal or abnormal result will be used as the judgment result. If the judgment result is normal, the regulation logic block is called, and by responding to the grid frequency fluctuation, the linear regulation decision of the load frequency conversion is executed. That is, based on the grid frequency deviation and load fluctuation, the regulation logic block calculates an appropriate regulation amount (load frequency conversion amount) as the first frequency regulation strategy. That is, under normal circumstances, the nuclear power unit takes preliminary frequency regulation measures according to the grid frequency fluctuation, including how to adjust the load, the rate of adjustment, and the magnitude of adjustment, etc. Among them, the regulation logic block is the core control module, which is responsible for executing the load regulation decision.

[0050] Preferably, the DCS logic block receives the first frequency regulation strategy generated by the regulation logic block and further adjusts and optimizes it. The DCS logic block needs to combine control limiting conditions, i.e., limit the maximum and minimum range of load fluctuations, to ensure that the frequency regulation strategy does not exceed the system's safe range. For example, when load fluctuations exceed the preset safe range, the DCS logic block will limit the adjustment range of the frequency regulation strategy to avoid excessive load changes leading to unit instability or grid failure. Specifically, the first frequency regulation strategy undergoes limit-over judgment and multi-step conversion. Limit-over judgment refers to checking whether the frequency regulation strategy exceeds the predetermined safe range or limit value. If the load change that needs adjustment exceeds the maximum regulation capacity of the nuclear power unit or exceeds the safe range for grid frequency stability, limit-over judgment is performed, and the strategy is blocked. The execution of the strategy involves several steps. During frequency regulation of nuclear power units, load adjustments may need to be made gradually in multiple steps to avoid excessive system load or rapid fluctuations. Multi-step conversion refers to dividing the frequency regulation strategy into multiple steps (the step size is adjusted according to the actual situation; if the amplitude is too large, it may affect grid stability and the effect will be poor; if the amplitude is too small, there is no need to adjust). Each step of the frequency regulation operation is executed step by step to achieve smooth load regulation. Then, through conditional constraint compensation, that is, the DCS logic block dynamically corrects the strategy according to the actual situation, such as adjusting the adjustment time and power change, and finally determines the pre-frequency regulation strategy. It takes into account factors such as load fluctuation limits, frequency regulation strategy compensation, over-limit adjustment, and step-by-step adjustment, aiming to ensure that nuclear power units can adjust efficiently and smoothly under grid load changes.

[0051] Step S500: Based on the pre-frequency regulation strategy, perform load frequency difference regulation control on the nuclear power unit.

[0052] Preferably, upon receiving a frequency regulation command from the power grid, the nuclear power unit controls the grid frequency deviation (i.e., frequency difference) by adjusting its generating load based on a pre-defined pre-regulation strategy. The frequency regulation control process requires making corresponding load adjustment decisions based on changes in the grid frequency (load frequency difference) and the unit's response capability. Through precise load adjustment, the nuclear power unit can help the grid return to its normal frequency level, ensuring stable grid operation. This involves using the decision content of the pre-regulation strategy to perform load frequency difference frequency regulation control on the nuclear power unit. The load frequency difference refers to the difference between the current grid frequency and its desired frequency. When the grid load increases or decreases, the frequency may deviate from the set value. (Typically 50Hz) This leads to grid instability. Load frequency deviation control reduces this frequency deviation by adjusting the load of nuclear power units, restoring grid frequency stability. Specifically, it involves real-time monitoring of grid frequency changes. When the grid frequency deviates from the target frequency (typically 50Hz), the nuclear power units, in coordination with the grid, need to make corresponding load adjustments. According to the pre-regulation strategy, the nuclear power units adjust their output power based on the frequency deviation. For example, when the frequency is too low (i.e., the grid load is too heavy), the units increase the load; when the frequency is too high (i.e., the grid load is too light), the units reduce the load. By precisely controlling the load output, the grid frequency is restored to the target frequency, reducing the frequency deviation. By employing optimized frequency regulation strategies, real-time feedback mechanisms, and dynamic adjustment methods, the nuclear power units ensure that the grid can restore its frequency as quickly and accurately as possible during load fluctuations, maintaining grid stability and reliability.

[0053] Furthermore, step S500 also includes step S510, setting an indicator evaluation matrix based on the primary frequency regulation standard, wherein the indicator evaluation matrix has evaluation indicators as matrix rows and multiple evaluation levels as matrix columns; step S520, monitoring the primary frequency regulation response of the nuclear power unit based on the sensor group to determine the frequency regulation response data; step S530, performing single-indicator evaluation and weighted comprehensive calculation on the frequency regulation response data according to the indicator evaluation matrix to determine the frequency regulation test result.

[0054] Preferably, the primary frequency regulation standard refers to the frequency regulation tasks that nuclear power units must complete according to standard requirements when the grid frequency fluctuates. This includes key performance indicators such as response time, frequency deviation correction amplitude, and power regulation accuracy. Based on the primary frequency regulation standard, an indicator evaluation matrix is ​​set to assess the frequency regulation response capability of the nuclear power units. The matrix rows represent different evaluation indicators, such as frequency regulation response time, frequency deviation, regulation amplitude, and power change rate, while the matrix columns represent different evaluation levels, such as excellent, good, qualified, and needing improvement. Each indicator is assigned a corresponding level based on the response result. A sensor array is used to monitor the grid frequency and nuclear power unit power output in real time to obtain grid frequency change data and the nuclear power unit's response data during the frequency regulation process, including frequency deviation correction values ​​and adjusted load amounts. This data is then used for evaluation. Based on the judgment matrix, each monitored frequency regulation response data point is evaluated individually. For example, the evaluation index is the frequency regulation response speed. If the actual response speed is less than the specified value, the index may be rated as excellent; if it exceeds the range, it may be rated as needing improvement. Since different evaluation indices have different degrees of influence on frequency regulation testing, each index is weighted. For example, response time and frequency deviation may be more important than power change rate, so response time and frequency deviation are given higher weights. Finally, a comprehensive result is obtained, reflecting the overall performance of the nuclear power unit in the frequency regulation task. The results obtained from the single index evaluation and the weighted comprehensive calculation are then integrated to obtain the frequency regulation test results, thereby ensuring that it can respond to grid frequency fluctuations in a timely and accurate manner in actual operation, improving response performance and ensuring grid stability.

[0055] In the above text, refer to Figure 1 The method for remote disturbance testing of primary frequency regulation of a nuclear power unit according to an embodiment of the present invention is described in detail. Next, reference will be made to... Figure 3 A remote disturbance testing system for primary frequency regulation of a nuclear power unit is described according to an embodiment of the present invention.

[0056] The nuclear power unit primary frequency regulation remote disturbance testing system according to embodiments of the present invention addresses the technical problem in the prior art that it cannot effectively cope with the frequency regulation requirements brought about by large disturbances or remote dispatch commands, thus making it difficult to quickly and accurately respond to frequency changes while ensuring the stability of the nuclear power unit. The system achieves the technical effect of improving the stable operation and response performance during remote large disturbance testing of the primary frequency regulation of nuclear power units. The nuclear power unit primary frequency regulation remote disturbance testing system includes: a test loop construction module 10, a test control module construction module 20, a frequency regulation task receiving module 30, a pre-frequency regulation strategy determination module 40, and a frequency regulation control module 50.

[0057] The test loop construction module 10 is used to construct a test loop by configuring the primary frequency regulation device of the interactive nuclear power unit. The configuration is a dual-redundant configuration, including hardware equipment and software logic configuration. The test control module construction module 20 is used to divide the test loop into a main test line and a secondary test line, and construct a test control module. The main test line is variable load frequency regulation control, and the secondary test line performs main line control compensation. The frequency regulation task receiving module 30 is used to receive frequency regulation tasks, which are grid frequency regulation commands or remote disturbance test commands. The remote disturbance test command is remotely generated and sent primary frequency regulation load information, and the grid frequency regulation command is a grid frequency signal based on sensor acquisition. The pre-frequency regulation strategy determination module 40 is used to determine the pre-frequency regulation strategy by making load adjustment decisions and condition compensation for the frequency regulation task based on the test control module. The frequency regulation control module 50 is used to perform load frequency difference frequency regulation control of the nuclear power unit based on the pre-frequency regulation strategy.

[0058] The specific configuration of the test control module construction module 20 will be described in detail below. The test control module construction module 20 further includes: an adjustment logic block construction module, used to construct an adjustment logic block for the main test line based on the linear load adjustment relationship of the power grid frequency fluctuation; a DCS logic block construction module, used to construct a DCS logic block for the auxiliary test line with distributed logic conditions as the compensation target; and a sample-driven training module, used to coordinate the adjustment logic block and the DCS logic block, and perform sample-driven training to generate the test control module.

[0059] The specific configuration of the test control module construction module 20 will be described in detail below. The test control module construction module 20 further includes: a clustering processing module, used to call historical frequency regulation records of the nuclear power unit, perform clustering processing based on the preset load fluctuation of the power grid, and determine N clusters; a first frequency regulation node mining module, used to identify the first cluster and mine the first frequency regulation node, wherein the first frequency regulation node includes a first load fluctuation vector and a first adjustment parameter, the first load fluctuation vector being the average load fluctuation within the cluster, and the first adjustment parameter being the concentrated value of the adjustment parameters within the cluster; and a linear load adjustment relationship determination module, used to traverse the N clusters, determine the Nth frequency regulation node, and perform curve transformation on the first frequency regulation node up to the Nth frequency regulation node to determine the linear load adjustment relationship.

[0060] The specific configuration of the test control module construction module 20 will be described in detail below. The test control module construction module 20 further includes: performing dual-path switching for the primary frequency regulation load adjustment command generated by the grid frequency and the primary frequency regulation load adjustment command generated by the turbine speed deviation, wherein the primary frequency regulation load adjustment command generated by the grid frequency comes from the same source device, and switching is triggered by an anomaly in the same source device; setting the maximum value of the load fluctuation frequency regulation, and generating control limiting conditions for the frequency regulation load command fluctuation constraint; sending an alarm command to the DCS when there is an anomaly in the primary frequency regulation same source device, so that the DCS rejects the frequency regulation command; and configuring the DCS logic block of the test auxiliary line based on the dual-path switching, the control limiting conditions, and the alarm command.

[0061] The specific configuration of the pre-frequency regulation strategy determination module 40 will be described in detail below. The pre-frequency regulation strategy determination module 40 further includes: determining whether the frequency regulation task is abnormal based on whether an alarm command is received, and generating a determination result; if the determination result is normal, determining a first frequency regulation strategy based on the adjustment logic block by executing a linear adjustment decision for the load frequency conversion; transferring the first frequency regulation strategy to the DCS logic block, and combining the control limiting conditions to perform over-limit determination and multi-step conversion on the first frequency regulation strategy, and determining the pre-frequency regulation strategy through condition constraint compensation.

[0062] The specific configuration of the frequency regulation control module 50 will be described in detail below. The frequency regulation control module 50 may further include: setting an indicator evaluation matrix based on a primary frequency regulation standard, wherein the indicator evaluation matrix has evaluation indicators as matrix rows and multiple evaluation levels as matrix columns; monitoring the primary frequency regulation response of the nuclear power unit based on a sensor array to determine the frequency regulation response data; and performing single-indicator evaluation and weighted comprehensive calculation on the frequency regulation response data according to the indicator evaluation matrix to determine the frequency regulation test results.

[0063] The specific configuration of the frequency modulation control module 50 will be described in detail below. The frequency modulation control module 50 may further include: monitoring the frequency modulation control status of the first parallel branch based on the sensor group, wherein the first parallel branch is the primary frequency modulation device currently performing frequency modulation control in the dual-redundancy configuration; determining a fault in the frequency modulation control status, switching to the second parallel branch for frequency modulation control, and suspending the frequency modulation control of the first parallel branch.

[0064] The nuclear power unit primary frequency regulation remote disturbance test system provided in this embodiment of the invention can execute the nuclear power unit primary frequency regulation remote disturbance test method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0065] Based on the foregoing embodiments, this application also provides an electronic device and a computer-readable storage medium storing a computer program. When the computer program is executed by the processor of the electronic device, it can implement the methods described in any of the preceding embodiments.

[0066] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention, showing a block diagram of an exemplary electronic device suitable for implementing the embodiments of the present invention. Figure 4 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present invention. This electronic device is in the form of a general-purpose computing device, and its components may include, but are not limited to, an input device 401, a processor 402, a memory 403, and an output device 404. The processor 402 may be one or more; the memory 403 may include a computer-readable medium and at least one program product having a set (at least one) of program modules configured to perform the functions of the embodiments of this application.

[0067] The memory 403 shown in this embodiment of the invention can be any combination of one or more computer-readable media. The computer-readable storage medium can be, but is not limited to, infrared, semiconductor systems, devices or components, or any combination thereof, used to store software programs, computer-executable programs and modules, such as the program instructions / modules corresponding to the nuclear power unit primary frequency regulation remote disturbance test method in this embodiment of the invention. The processor 402 executes various functional applications and data processing of the computer device by running the software programs, instructions and modules stored in the memory 403, thereby realizing the above-mentioned nuclear power unit primary frequency regulation remote disturbance test method.

[0068] Although this application makes various references to certain modules in the system according to the embodiments of this application, any number of different modules can be used and run on user terminals and / or servers. The various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy distinction between each other and are not used to limit the scope of protection of this invention.

[0069] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A remote disturbance test method for primary frequency regulation of a nuclear power unit, characterized in that, The method includes: The installation configuration of the primary frequency regulation co-source device of the interactive nuclear power unit is used to construct a test circuit. The installation configuration is a dual-redundant configuration, which includes hardware equipment and software logic configuration. For the test loop, a main test line and a secondary test line are divided, and a test control module is constructed. The main test line is a variable load frequency regulation control, and the secondary test line performs main line control compensation. Receive frequency regulation task, wherein the frequency regulation task is a power grid frequency regulation command or a remote disturbance test command, the remote disturbance test command is a primary frequency regulation load information generated and sent remotely, and the power grid frequency regulation command is a power grid frequency signal based on sensor acquisition; Based on the test control module, load adjustment decisions and condition compensation are performed on the frequency modulation task to determine the pre-frequency modulation strategy; Based on the aforementioned pre-frequency regulation strategy, the nuclear power unit is subjected to frequency regulation control of the load frequency difference; The construction test control module includes: For the aforementioned test main line, an adjustment logic block is constructed based on the linear load adjustment relationship of power grid frequency fluctuations; For the aforementioned test auxiliary line, a DCS logic block is constructed with distributed logic conditions as the compensation target; The adjustment logic block and the DCS logic block are coordinated, and sample-driven training is performed to generate the test control module; The construction of the DCS logical block includes: For the primary frequency regulation load adjustment command generated by the grid frequency and the primary frequency regulation load adjustment command generated by the turbine speed deviation, a dual-path switching is performed. The primary frequency regulation load adjustment command generated by the grid frequency comes from the same source device, and the switching is triggered by the abnormality of the same source device. Set the maximum value of frequency regulation for load fluctuations, and generate control limit conditions for frequency regulation load command fluctuation constraints; When a malfunction occurs in the primary frequency modulation source device, an alarm command is sent to the DCS so that the DCS can reject the frequency modulation command. Configure the DCS logic block of the test auxiliary line based on the dual-path switching, the control limiting conditions, and the alarm command; The frequency regulation task is subjected to load adjustment decision-making and condition compensation to determine the pre-frequency regulation strategy, including: Based on whether an alarm command has been received, the frequency modulation task is evaluated for any discrepancies, and a result is generated. If the determination result is normal, based on the adjustment logic block, the first frequency regulation strategy is determined by executing the linear adjustment decision of the load frequency conversion. The first frequency modulation strategy is transferred to the DCS logic block. Combined with the control limiting condition, the first frequency modulation strategy is subjected to limit judgment and multi-step conversion. Through condition constraint compensation, the pre-frequency modulation strategy is determined.

2. The method for remote disturbance testing of primary frequency regulation of nuclear power units as described in claim 1, characterized in that, Obtaining the linear load adjustment relationship includes: By calling up the historical frequency regulation records of nuclear power units and performing clustering based on the preset load fluctuation of the power grid, N clusters are determined. Identify the first cluster and mine the first frequency modulation node, wherein the first frequency modulation node includes a first load fluctuation vector and a first adjustment parameter, the first load fluctuation vector is the average load fluctuation within the cluster, and the first adjustment parameter is the concentrated value of the adjustment parameter within the cluster; Traverse the N clusters to determine the Nth frequency modulation node, and perform curve transformation on the first frequency modulation node up to the Nth frequency modulation node to determine the linear load regulation relationship.

3. The method for remote disturbance testing of primary frequency regulation of nuclear power units as described in claim 1, characterized in that, After performing frequency regulation control on the load frequency difference of the nuclear power unit, the following steps are included: Based on the primary frequency regulation standard, an indicator evaluation matrix is ​​set, wherein the indicator evaluation matrix has evaluation indicators as matrix rows and multiple evaluation levels as matrix columns; Based on the sensor array, the frequency modulation response of the nuclear power unit is monitored once to determine the frequency modulation response data; Based on the index evaluation matrix, the frequency modulation response data is evaluated by single index and weighted comprehensive calculation to determine the frequency modulation test results.

4. The method for remote disturbance testing of primary frequency regulation of nuclear power units as described in claim 1, characterized in that, The method includes: Based on the sensor group, the frequency modulation control status of the first parallel branch is monitored, wherein the first parallel branch is the primary frequency modulation device currently performing frequency modulation control in the dual-path redundancy configuration. The frequency modulation control state is fault-determined, and the frequency modulation control is switched to the second parallel branch, while the frequency modulation control of the first parallel branch is suspended.

5. A remote disturbance testing system for primary frequency regulation of nuclear power units, characterized in that, The system is used to implement the remote disturbance test method for primary frequency regulation of nuclear power units as described in any one of claims 1 to 4, and the system comprises: The test loop construction module is used to configure the primary frequency regulation device of the interactive nuclear power unit and construct the test loop. The configuration is a dual-redundant configuration, which includes hardware equipment and software logic configuration. The test control module construction module is used to divide the test loop into a main test line and a secondary test line, and construct a test control module, wherein the main test line is a variable load frequency regulation control, and the secondary test line performs main line control compensation; A frequency modulation task receiving module is used to receive frequency modulation tasks, wherein the frequency modulation task is a power grid frequency modulation command or a remote disturbance test command, the remote disturbance test command is a primary frequency modulation load information generated and sent remotely, and the power grid frequency modulation command is a power grid frequency signal based on sensor acquisition; The pre-frequency regulation strategy determination module is used to determine the pre-frequency regulation strategy based on the test control module, performing load adjustment decisions and condition compensation for the frequency regulation task. The frequency control module is used to perform frequency regulation control of the load frequency difference of the nuclear power unit based on the pre-frequency regulation strategy.

6. An electronic device, characterized in that, The electronic device includes: Memory, used to store executable instructions; The processor, when executing executable instructions stored in the memory, implements the remote disturbance test method for primary frequency regulation of nuclear power units as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the remote disturbance test method for primary frequency regulation of nuclear power units as described in any one of claims 1-4.

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