A pumped storage power station equipment verification system, method and medium

Abstract

This invention provides a pumped storage power station equipment verification system, method, and medium, relating to the field of power station equipment operation and maintenance and simulation technology. It includes a virtual-real fusion control module, a simulation module, a simulation switch module, a signal conversion module, and a control panel module. The virtual-real fusion control module drives the equipment simulation model, signal conversion module, simulation switch module, and control panel module in the simulation module to operate synchronously with the actual pumped storage power station units according to the operation control commands. It also evaluates the performance of the equipment to be verified in the control panel module, obtaining the evaluation results of the equipment to be verified. The technical solution of this invention eliminates the need for the equipment to be verified to be directly connected to the actual unit, avoiding safety risks and improving the safety of the verification process.

Description

Technical Field

[0001] This invention relates to the field of power plant equipment operation and maintenance and simulation technology, and in particular to a pumped storage power plant equipment verification system, method and medium. Background Technology

[0002] As a core peak-shaving and frequency-regulating power source in the power system, the operational stability of pumped-storage power stations directly impacts grid security. With the upgrading of power technology and the advancement of domestic production, power stations need to regularly replace or upgrade core equipment such as computer monitoring systems, generator motor protection cabinets, main transformer protection cabinets, and SFC (Static Frequency Converter) control and protection cabinets to improve operational efficiency and reliability. However, when new equipment is directly connected to actual generating units, significant safety risks exist because the control logic, parameter compatibility, and fault handling capabilities of the new equipment have not been verified. This could lead to unit malfunctions, shutdowns, or even equipment damage, and direct commissioning could trigger a cascading grid failure.

[0003] While existing hardware-in-the-loop (HIL) simulation technology has been applied in power plant training and equipment testing, it only focuses on the cyber-physical fusion simulation of equipment and lacks a dynamic data synchronization mechanism. The simulation model deviates significantly from the actual operating conditions, making it difficult to meet the accuracy requirements for long-term verification of new equipment. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a pumped storage power station equipment verification system, method and medium, which uses a simulation module, a simulation switch module, a signal conversion module and a panel module to form a semi-physical simulation unit. Under the control of the virtual-real integration control module, the simulation unit and the real unit can operate synchronously to complete the performance verification of the new equipment.

[0005] In a first aspect, embodiments of the present invention provide a pumped storage power station equipment verification system. The system includes a virtual-real integrated control module, a simulation module, a simulation switch module, a signal conversion module, and a control panel module. The virtual-real integrated control module is communicatively connected to the unit LCU in the simulation module and the control panel module, respectively. The simulation module is communicatively connected to the simulation switch module and the signal conversion module, respectively. The simulation switch module is communicatively connected to the unit LCU. The virtual-real fusion control module is used to receive operation control commands from the real unit computer monitoring system and send the operation control commands to the unit LCU; drive the equipment simulation model in the simulation module to operate synchronously with the real unit of the pumped storage power station according to the operation control commands; receive the operation data of the real unit computer monitoring system and the response data of the equipment to be verified fed back by the panel module, evaluate the performance of the equipment to be verified, and obtain the evaluation result of the equipment to be verified. The simulation module is used to simulate the operating status of the primary equipment in the pumped storage power station under the control of the unit LCU, simulate the operation of the pumped storage power station in response to the operation control commands, obtain operating characteristic data, and send the switch control data for switch actions in the operating characteristic data to the simulation switch module. The signal conversion module is used to convert the operating characteristic data into physical data that is compatible with the panel module; The simulation switch module is used to execute corresponding switching actions according to the switch control data, obtain a status feedback signal and send it to the unit LCU in the panel module; The unit LCU is used to receive the operation control command and control the simulation module to simulate the operation status of the primary equipment in the pumped storage power station according to the operation control command, so as to realize synchronous operation with the real unit of the pumped storage power station; according to the status feedback signal and the operation characteristic data, control the secondary cabinet in the control panel module to perform corresponding protection actions, and collect the response data of the equipment to be verified in the secondary cabinet.

[0006] In a preferred embodiment of the present invention, the above-mentioned virtual-real fusion control module includes a parameter synchronization unit; the parameter synchronization unit is used to obtain the real parameters of each device in the pumped storage power station from the real unit computer monitoring system, and update the simulation parameters in the simulation model and the control parameters of the control panel module according to the real parameters.

[0007] In a preferred embodiment of the present invention, the above-mentioned virtual-real fusion control module includes a verification and evaluation unit; the verification and evaluation unit is used to receive the response data of the device to be verified fed back by the unit LCU, and compare the response data with the preset standard verification data to generate an evaluation result; wherein, the response data includes the action response time, setpoint execution accuracy, control logic consistency, operating power consumption and fault handling capability data of the device to be verified.

[0008] In a preferred embodiment of the present invention, the above-mentioned verification and evaluation unit is further configured to receive the response data of the device to be verified fed back by the unit LCU, and the operation data of the actual unit computer monitoring system corresponding to the device to be verified, and compare the response data with the operation data to be verified to generate an evaluation result.

[0009] In a preferred embodiment of the present invention, the above-mentioned virtual-real fusion control module includes a synchronization deviation monitoring unit; the synchronization deviation monitoring unit is used to receive simulation data fed back by the unit LCU and the operating data of the real unit computer monitoring system, and compare the simulation data and the operating data to obtain a data deviation result; when the data deviation result meets the deviation condition, the simulation module is stopped from being driven.

[0010] In a preferred embodiment of the present invention, the secondary control panel includes a generator LCU, a speed governor electrical cabinet, an excitation regulating cabinet, a relay protection cabinet, an SFC control and protection cabinet, and an AC / DC distribution cabinet; the device to be verified is at least one device in the secondary control panel; the other devices in the secondary control panel, excluding the device to be verified, have the same model as the corresponding devices in the actual generator unit.

[0011] In a preferred embodiment of the present invention, the above-mentioned cabinet module adopts a standardized interface design for connecting the device to be verified.

[0012] Secondly, embodiments of the present invention also provide a method for verifying pumped storage power station equipment, applied to the virtual-real fusion control module as described in the first aspect, the method comprising: Obtain operational control commands from the actual unit's computer monitoring system; The operation control command is sent to the panel module to instruct the panel module to drive the simulation module to run according to the operation control command, obtain operation characteristic data, and send the operation characteristic data to the panel module and the simulation switch module; The system acquires response data from the device to be verified in the control panel module in response to the operating characteristic data and the status feedback signal from the simulation switch module, as well as preset standard operating data. The response data is compared with the standard operating data to evaluate the performance of the device to be verified and obtain the evaluation result.

[0013] In a preferred embodiment of the present invention, before obtaining the operation control instructions from the actual unit computer monitoring system, the method further includes: The equipment parameters of the actual unit are read from the actual unit's computer monitoring system and used as the actual parameters. The actual parameters are input into the simulation module to update the model parameters in the simulation module.

[0014] Thirdly, embodiments of the present invention also provide an electronic device, including a processor and a memory, wherein the memory stores computer-executable instructions that can be executed by the processor, and the processor executes the computer-executable instructions to implement the pumped storage power station equipment verification method of the first aspect described above.

[0015] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions. When the computer-executable instructions are invoked and executed by a processor, the computer-executable instructions cause the processor to implement the pumped storage power station equipment verification method of the first aspect described above.

[0016] The embodiments of the present invention bring the following beneficial effects: This invention provides a pumped storage power station equipment verification system, comprising a virtual-real integrated control module, a simulation module, a simulation switch module, a signal conversion module, and a control panel module. The simulation module, simulation switch model, signal conversion module, and control panel module constitute a virtual machine group. The virtual-real integrated control module reads the operating control commands of the real unit from the real unit's computer monitoring system, thereby controlling the virtual machine group to operate synchronously with the real unit. In the virtual machine group, the control panel module, except for the equipment to be verified, uses equipment of the same model as the real unit. This allows the equipment to be verified to have the same operating environment as the real unit without being connected to it, ensuring the authenticity of the performance evaluation process. Simultaneously, all tests and verifications are completed in the virtual simulation environment, without affecting the real unit, ensuring production safety and avoiding real unit shutdowns, equipment damage, or even grid cascading failures caused by mismatched new equipment parameters, control logic errors, or abnormal fault responses. This system can be widely applied to new equipment selection, upgrades, and performance optimization scenarios in pumped storage power stations, providing data support for power station equipment operation and maintenance, and reducing operation and maintenance costs.

[0017] Other features and advantages of this disclosure will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the techniques described above.

[0018] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A structural block diagram of a pumped storage power station equipment verification system provided in an embodiment of the present invention; Figure 2A structural block diagram of another pumped storage power station equipment verification system provided in an embodiment of the present invention; Figure 3 A flowchart of a pumped storage power station equipment verification method provided in an embodiment of the present invention; Figure 4 A schematic diagram of a system for verifying a new SFC control and protection cabinet for a pumped storage power station, provided as an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] With the upgrading of power technology and the advancement of localization, power plants need to regularly replace or upgrade core equipment such as SFC control and protection cabinets and excitation regulating cabinets to improve operational efficiency and reliability. However, directly connecting new equipment to real generating units poses significant safety risks. First, the compatibility of the control logic and parameters of the new equipment with the real generating units has not been verified, which may lead to unit malfunctions, shutdowns, or even equipment damage. Second, the fault handling capabilities and long-term operational stability of the new equipment lack verification under actual operating conditions, and direct commissioning may trigger cascading failures in the power grid. Finally, traditional verification of new equipment often relies on offline simulation or short-term tests, which cannot simulate the complex operating conditions and long-term operating characteristics of real generating units, resulting in insufficient accuracy of the verification results.

[0023] Based on this, the pumped storage power station equipment verification system provided in this embodiment of the invention utilizes a simulation module, a simulation switch module, a signal conversion module, and a control panel module to form a semi-physical simulation unit. The equipment to be verified is connected to the control panel module. The virtual-real fusion control module reads the actual operation control commands executed by the real unit during operation from the computer monitoring system of the real unit, and controls the simulation unit to operate according to the operation control commands. This achieves synchronous operation between the simulation unit and the real unit, ensuring that the equipment to be verified has the same operating environment as the real unit during the performance evaluation process, thereby ensuring the authenticity and safety of the equipment to be verified during the performance evaluation process.

[0024] To facilitate understanding of this embodiment, a detailed description of the pumped storage power station equipment verification system disclosed in this embodiment of the invention will be provided first.

[0025] Example 1 This invention provides a pumped storage power station equipment verification system. Figure 1 This is a structural block diagram of a pumped storage power station equipment verification system provided in an embodiment of the present invention. Figure 1 As shown, the pumped storage power station equipment verification system may include: a virtual-real fusion control module, a simulation module, a simulation switch module, a signal conversion module, and a control panel module. The virtual-real fusion control module is communicatively connected to the real unit's computer monitoring system, the simulation module, and the unit's LCU in the control panel module. The simulation module is communicatively connected to the simulation switch module and the signal conversion module. The simulation switch module is communicatively connected to the unit's LCU. Specifically, the virtual-real fusion control module receives operation control commands from the real unit's computer monitoring system and sends these commands to the unit's LCU; it also receives response data from the control panel module of the equipment to be verified, evaluates the performance of the equipment, and obtains the evaluation result. The simulation module, under the control of the unit's LCU, simulates the operating status of the primary equipment in the pumped storage power station, obtains operating characteristic data, and sends the switch control data related to switch actions from the operating characteristic data to the simulation switch module. The signal conversion module converts the operating characteristic data into... The panel module is adapted to physical data; the simulation switch module is used to execute corresponding switching actions according to the switch control data, obtain status feedback signals and send them to the unit LCU in the panel module; the unit LCU is used to receive the operation control commands and control the simulation module to simulate the operation status of the primary equipment in the pumped storage power station according to the operation control commands, so as to realize synchronous operation with the real unit in the pumped storage power station; according to the status feedback signals and the operation characteristic data, the secondary panel in the panel module is controlled to execute corresponding protection actions and the response data of the equipment to be verified in the secondary panel is collected.

[0026] In this embodiment of the invention, the virtual-real fusion control module establishes a communication link with the real unit (the actual equipment used in the pumped storage power station) via the IEC 61850 MMS protocol. The real unit's computer monitoring system is used to control the operation of other equipment in the real unit. Simultaneously, the operation control commands used by the real unit's computer monitoring system to control the operation of other equipment in the real unit are synchronously sent to the virtual-real fusion control module to achieve synchronous control of the simulated unit. That is, the same operation control commands are issued to the simulation module, controlling the simulated unit to synchronously execute the same actions as the real unit, thus achieving synchronous operation between the simulated and real units. The operation control commands are those executed by the real unit during operation, used to describe the working status of each piece of equipment in the real unit, i.e., normal operation or fault scenarios when a fault occurs. After the real unit's computer monitoring system sends operation control commands to the virtual-real fusion control module, the virtual-real fusion control module forwards the operation control commands to the unit LCU in the control panel module. The unit LCU then controls the simulation module to execute the operation control commands, further driving the operation of the simulation switch module and signal conversion module, achieving synchronous operation between the simulated unit and the real unit. The unit LCU controlling the simulation module to execute operation control commands means controlling the simulation module to simulate fault scenarios or normal operation scenarios, providing the equipment to be verified with the same operating environment as the real unit.

[0027] The simulation module can be built based on electromagnetic transient simulation software. It can include simulation models of the primary equipment used in pumped storage power stations to simulate the electrical characteristics and dynamic responses of the primary equipment under normal operation, single fault, and combined fault conditions. For example, the simulation module can include simulation models of generators, main transformers, lines, switching switches, SFCs (Static Frequency Converters), and loads that correspond one-to-one with the actual units in the pumped storage power station. Furthermore, in the simulation module, the parameters of each simulation model are the same as the actual equipment parameters of the pumped storage power station. The actual equipment parameters include at least core parameters such as rated capacity, impedance value, and switching frequency. That is, the primary equipment simulation module can obtain the core parameters such as rated capacity, impedance value, and switching frequency corresponding to each piece of equipment in the pumped storage power station and input these core parameters into the corresponding simulation model. In this embodiment of the invention, the simulation model in the simulation module can be added, deleted, and modified according to actual simulation needs. For example, when adding equipment, only the simulation model in the simulation module needs to be updated, that is, the simulation model of the new equipment is added to the simulation module, without modifying the core control logic. The operational characteristic data output by the simulation module includes switch control data for switch actions. For example, the operational characteristic data is used to describe the current, voltage, and switching quantities (on or off) of the equipment during operation. The switch control data (switching quantities) for switch actions is used to control the actions performed by various types of switches in the pumped storage power station. For example, the switch control data for switch actions can control circuit breaker opening, disconnector closing, etc.

[0028] The simulation module is connected to the signal conversion module, outputting operational characteristic data to it. The simulation module is also connected to the simulation switch module, sending the switch control data related to switch actions from the operational characteristic data to the simulation switch module.

[0029] The simulation switch module executes corresponding switching actions based on the switch control data for switch actions, and obtains a status feedback signal. The status feedback signal describes the state of each switch in the simulation switch module after executing its corresponding switching action. In this embodiment of the invention, the switch control data received by the simulation switch module for switch actions can control the simulation switch module to simulate the normal and abnormal operating states of circuit breakers, phase-changing disconnectors, and disconnectors, supporting the simulation of abnormal states such as circuit breaker failure to close or open, and disconnector malfunction.

[0030] The signal conversion module is responsible for signal conversion between the simulation module and the control panel module. It converts the digital signals (operational characteristic data) output by the simulation module into physical data (such as 0-1A current, 0-100V voltage, switching signals, and analog signals) that the control panel module can recognize. The signal conversion module can use a 16-bit resolution digital-to-analog converter chip with a conversion rate of 1MS / s to ensure accurate conversion of transient signals and support the signal interaction requirements of closed-loop simulation. The output signal of an exemplary control panel module can be at least one of 0-1A current, 0-100V voltage, switching signals, and analog signals. Correspondingly, the signals that the control panel module can recognize are also 0-1A current, 0-100V voltage, switching signals, and analog signals. Therefore, for operational characteristic data, since it consists of small signals output by the control coordination module and the analog switch module, it cannot be directly recognized by the physical control panel module. It needs to be converted through the interface conversion module to obtain signals such as 0-1A current, 0-100V voltage, switching signals, and analog signals that the physical control panel module can recognize—that is, physical data.

[0031] The control panel module includes the unit's LCU (Local Control Unit) and secondary control panels. The secondary control panels include at least a governor electrical cabinet, an excitation regulating cabinet, a relay protection cabinet, an SFC control and protection cabinet, and an AC / DC distribution cabinet. The relay protection cabinet includes a rotor overvoltage protection cabinet, a generator motor protection cabinet, and a main transformer protection cabinet. In the control panel module, the device to be verified can be at least one of the following: the unit LCU, governor electrical cabinet, excitation regulating cabinet, relay protection cabinet, SFC control and protection cabinet, and AC / DC distribution cabinet. Except for the device to be verified, the model of each of the other devices corresponds to that of the actual unit. The unit LCU and the LCU in the actual unit's computer monitoring system are connected to the same time synchronization device to achieve time synchronization.

[0032] The control panel module is used to connect new equipment to be verified, enabling long-term performance verification of the new equipment without interrupting the operation of the actual generating units. Specifically, the control panel module employs a standardized interface design, allowing existing equipment within the module to be replaced with new equipment (the equipment to be verified). No modifications to the system architecture or communication protocol are required when connecting new equipment. It supports parallel access and switching of single or multiple new devices, enabling simultaneous verification of various new devices and reducing the difficulty of connecting new equipment. As part of the control panel module, the new equipment forms a closed-loop simulation link with the simulation module through the simulation switch module, signal conversion module, and simulation module, relying on a virtual-real fusion synchronous operation mechanism to complete long-term performance verification.

[0033] Based on the received operational characteristic data and status feedback signals, the control panel module executes corresponding protection actions according to a preset protection strategy, such as stopping operation or powering off. Specifically, within the control panel module, the unit's LCU controls the governor electrical cabinet, excitation regulating cabinet, relay protection cabinet, SFC control and protection cabinet, and AC / DC distribution cabinet to perform corresponding actions based on the received operational characteristic data and status feedback signals. For the equipment to be verified in the governor electrical cabinet, excitation regulating cabinet, relay protection cabinet, SFC control and protection cabinet, and AC / DC distribution cabinet, the unit's LCU collects the response data of the equipment to be verified in real time. For example, the response data includes at least the action response time, setpoint execution accuracy, control logic consistency, operating power consumption, and fault handling capability data. The control panel module can directly send the collected response data to the virtual-physical integrated control module.

[0034] The virtual-real fusion control module compares the received response data with pre-set standard data, calculates the difference between each value in the response data and the corresponding value in the standard data, and obtains the evaluation result of the device to be calibrated. Alternatively, the virtual-real fusion control module can also receive operating data from the real unit's computer monitoring system, and filter out the operating data of the device corresponding to the device to be calibrated from the operating data. It compares each value in the response data with each value in the operating data of the device corresponding to the device to be calibrated, calculates the difference, and obtains the evaluation result of the device to be calibrated. For example, the device in the real unit corresponding to the device to be calibrated may be a different model than the device to be calibrated. The operating data from the real unit's computer monitoring system can be the operating data of all devices in the real unit, used to describe the operating status of each device in the real unit. The virtual-real fusion control module can then filter out the operating data of the device corresponding to the device to be calibrated from the operating data. Alternatively, the operating data from the real unit's computer monitoring system can be the operating data of only the device corresponding to the device to be calibrated in the real unit.

[0035] This invention provides a pumped storage power station equipment verification system, comprising a virtual-real integrated control module, a simulation module, a simulation switch module, a signal conversion module, and a control panel module. The simulation module, simulation switch model, signal conversion module, and control panel module constitute a virtual machine group. The virtual-real integrated control module obtains the operating control commands of the real unit through the real unit's computer monitoring system, thereby controlling the virtual machine group to operate synchronously with the real unit. In the virtual machine group, the control panel module, except for the equipment to be verified, uses equipment of the same model as the real unit. This allows the equipment to be verified to have the same operating environment as the real unit without being connected to it, ensuring the authenticity of the performance evaluation process. Simultaneously, all tests and verifications are completed in the virtual simulation environment, without affecting the real unit, ensuring production safety and avoiding real unit shutdowns, equipment damage, or even grid cascading failures caused by mismatched new equipment parameters, control logic errors, or abnormal fault responses. This system can be widely applied to new equipment selection, upgrades, and performance optimization scenarios in pumped storage power stations, providing data support for power station equipment operation and maintenance, and reducing operation and maintenance costs.

[0036] Example 2 This invention also provides another pumped storage power station equipment verification system; this system is implemented based on the system in the above embodiments; the method focuses on describing the specific implementation of the virtual-real fusion control module.

[0037] Figure 2 A structural block diagram of another pumped storage power station equipment verification system provided in an embodiment of the present invention is shown below. Figure 2 As shown, the virtual-real fusion control module includes a parameter synchronization unit, a verification and evaluation unit, and a synchronization deviation monitoring unit.

[0038] The parameter synchronization unit is used to obtain the actual parameters of each device in the pumped storage power station from the actual unit computer monitoring system, and update the simulation parameters in the simulation model and the control parameters of the control panel module according to the actual parameters. The verification and evaluation unit is used to receive the response data of the device to be verified from the unit LCU, compare the response data with preset standard verification data, and generate an evaluation result; wherein the response data includes the action response time, setpoint execution accuracy, control logic consistency, operating power consumption, and fault handling capability data of the device to be verified. The verification and evaluation unit is also used to receive the response data of the device to be verified from the unit LCU, and the corresponding verification operation data of the device in the operation data of the actual unit computer monitoring system, and compare the response data with the verification operation data to generate an evaluation result. The synchronization deviation monitoring unit is used to receive the simulation data from the unit LCU and the operation data of the actual unit computer monitoring system, compare the simulation data and the operation data to obtain the data deviation result; when the data deviation result meets the deviation condition, the simulation module is stopped.

[0039] Specifically, the parameter synchronization unit can customize the synchronization period within the range of 1 minute to 24 hours, automatically obtaining the real parameters of the actual unit from the real unit's computer monitoring system according to the synchronization period. Exemplary real parameters may include setpoint parameters, control logic parameters, and equipment status parameters. Setpoint parameters may be protection setpoints, control limits, etc.; control logic parameters may be timing parameters, PID parameters, etc.; and equipment status parameters may be status switches, operating conditions, etc. The simulation parameters (setpoint parameters and equipment status parameters) of each simulation model in the simulation module and the control parameters (control logic parameters) of the control panel module are updated through a parameter mapping algorithm. For example, when the parameter synchronization unit obtains setpoint parameters, control logic parameters, and equipment status parameters from the real unit's computer monitoring system, it carries a timestamp and uses a timestamp alignment mechanism to ensure that the setpoint parameters obtained from the real unit strictly correspond to the current simulation time of the simulation model. The parameter mapping algorithm converts the parameter format of the real parameters into a format that the simulation model and control panel module can recognize. The mapping method can be direct mapping, linear transformation mapping, lookup table mapping, etc., and can be set according to actual conditions.

[0040] The verification and evaluation unit collects real-time response data from the equipment to be verified, including action response time, setpoint execution accuracy, control logic consistency, operating power consumption, and fault handling capability data. This data is then compared and analyzed in multiple dimensions with the corresponding operating data from the actual unit or preset standard verification data. Using pre-set scoring rules, quantitative verification indicators are obtained, thus generating quantitative verification results. Specifically, the quantitative verification indicators of the verification and evaluation unit include action accuracy, real-time response, parameter adaptability, operational stability, and fault tolerance.

[0041] The accuracy score refers to the precision of the SFC's execution of control commands and protection signals, as well as the degree of conformity between key actions (such as speed regulation, grid switching, and fault interlocking) and preset targets. It directly determines the reliability and safety of unit startup and operating condition switching, including command execution accuracy, action parameter accuracy, and protection action accuracy. Command execution accuracy refers to the consistency between the actual action and the command response after the SFC receives commands from the computer monitoring system / excitation system, including response time deviation, action duration deviation, and synchronization point deviation. Action parameter accuracy refers to the degree of deviation between the actual output parameters (such as speed, current, and frequency) and preset target parameters during SFC execution, including frequency deviation rate, current deviation rate, speed control accuracy, and parameter fluctuation rate. Protection action accuracy refers to the timeliness and correctness of the protection logic triggering under fault conditions (overcurrent, overvoltage, loss of synchronism), with no failure to operate or erroneous operation.

[0042] The real-time response score refers to the SFC's ability to quickly perceive and execute external commands, changes in operating conditions, or disturbance signals. It is a core indicator of the time difference between "signal input and system response" and directly determines the efficiency of unit startup and operating condition switching as well as the recovery speed under grid disturbances. It includes command response real-time, disturbance response real-time, and regulation response real-time. Command response real-time performance refers to the trigger delay at which the output parameters (voltage, current, frequency) begin to change after the SFC receives the operation control commands (such as start-up, speed regulation, grid connection, and shutdown) from the actual unit computer monitoring system, as well as the execution time for the parameters to reach the target value, including start-up trigger delay, speed regulation execution time, and synchronization matching time. Disturbance response real-time performance refers to the detection delay at which the SFC detects the deviation and initiates regulation when disturbances occur on the grid side (voltage fluctuations, frequency fluctuations) or the unit side (speed fluctuations, load changes), as well as the recovery time for the parameters to return to the allowable range, including voltage deviation detection delay and speed recovery time. Protection response real-time performance refers to the action delay at which the SFC protection circuit detects the fault and executes the interlocking / shutdown action when a system fault occurs (overcurrent, overvoltage, loss of synchronism), which is a core indicator for ensuring equipment safety, including overcurrent protection action delay and loss of synchronism protection action delay.

[0043] The parameter adaptability score refers to the degree of matching between the core technical parameters of the SFC and the requirements of the unit itself and the grid side. It is a key indicator to ensure the stable start-up, low-impact operation and rapid response of the SFC. It includes electrical parameters, control parameters and operating parameters. Electrical parameters include output current adaptability, voltage adaptability and frequency adaptability. Control parameters are verified through speed regulation dynamic characteristic tests, and the core indicators are overshoot and settling time. Operating parameters are comprehensively evaluated by the start-up success rate and inrush current multiple under different operating conditions.

[0044] The operational stability score refers to the SFC's ability to maintain stable key parameters such as output voltage, current, frequency, and speed throughout the entire operating cycle (start-up, speed regulation, grid connection, steady-state operation, operating condition switching, and fault recovery), without exhibiting abnormal phenomena such as oscillation, overshoot, loss of synchronization, or excessive harmonics. It also refers to its ability to operate without impact in coordination with the generator set and the grid. The score combines steady-state stability and dynamic stability, determined through quantitative calculations and experimental verification. Steady-state stability includes output frequency fluctuation, current fluctuation, speed deviation rate, and harmonic distortion rate; dynamic stability includes speed overshoot, settling time, number of current oscillations, and grid connection inrush current multiple.

[0045] Fault tolerance refers to the ability of a SFC to maintain basic functions, prevent outages from escalating, and quickly restore operation when its own components fail, external operating conditions are disturbed, or the power grid is abnormal. It is a core indicator for measuring the reliability of SFC and the continuity of power plant operation, including fault tolerance, fault isolation, and fault recovery capabilities. Fault tolerance capability refers to the SFC's ability to maintain derated or normal operation without triggering a complete shutdown when a local component fails (such as a single bridge arm failure of the power module or an abnormal cooling system) or when there are external disturbances (such as a voltage dip in the grid or harmonic interference). This includes the derated operating factor when a single bridge arm of the power module fails, the voltage tolerance threshold when the grid voltage dips, and the no-communication operating time when control communication is interrupted. Fault isolation capability refers to the SFC's ability to quickly isolate the faulty component from the system after detecting a fault (such as disconnecting the faulty bridge arm through a bypass switch) to prevent the fault from spreading to other core units (such as the controller or excitation system). This includes the fault isolation delay and the fault impact range coefficient. Fault recovery capability refers to the SFC's ability to quickly restore rated output and complete unit startup or operating condition switching after the fault is cleared or switched to the backup channel. This includes the fault recovery time and the recovery success rate during multi-fault cycle testing.

[0046] The total score is obtained by weighting the indicators, which determines whether the equipment to be checked is qualified. The specific calculation formula is as follows: Total Score = 0.25 × Action Accuracy Score + 0.25 × Real-time Response Score + 0.2 × Parameter Adaptability Score + 0.2 × Operational Stability Score + 0.1 × Fault Tolerance Score The total score is compared with a preset score threshold. If the total score is greater than or equal to the threshold, the verification is considered successful; otherwise, it is considered unsuccessful. For example, a total score greater than or equal to 85 points is considered successful, while a score less than 85 points is considered unsuccessful. In this case, further targeted optimization suggestions can be generated by looking up a table, such as increasing the setpoint parameters of the device to be verified.

[0047] The synchronization deviation monitoring unit receives simulation data fed back by the unit's LCU and operational data from the real unit's computer monitoring system. The simulation data refers to key operating parameters fed back by the unit's LCU; specifically, the unit's LCU collects key operating parameters generated by the secondary control panels during operation. The operational data from the real unit's computer monitoring system refers to key operating parameters generated by the secondary control panels in the real unit during operation. These key operating parameters include voltage, current, power, protection actions, and switch actions. The unit compares the key operating parameters of the control panel modules with those of the real unit in real time. When the parameter deviation exceeds ±3% or the synchronization delay exceeds 100ms, an audible and visual alarm is immediately triggered, and the execution of operation control commands is suspended. Simultaneously, a deviation correction mechanism is activated. Once the deviation returns to the allowable range, the virtual-real synchronized operation is automatically restored. The deviation correction mechanism utilizes the parameter synchronization unit to obtain the setpoint parameters, control logic parameters, and equipment status parameters of the real unit, and updates the simulation parameters of each simulation model in the simulation module and the control parameters of the control panel modules through a parameter mapping algorithm. Among these, parameter deviation refers to parameters such as voltage, current, and power. For example, for voltage, the parameter deviation can be determined by the ratio of the difference between the voltage of the control panel module and the voltage of the actual generating unit to the voltage of the actual generating unit. The calculation principle for the parameter deviation of current and power is the same. Synchronization delay refers to parameters such as protection actions and switching actions. For example, for protection actions, the synchronization delay can be determined by the difference between the execution time of the protection action of the control panel module and the execution time of the protection action of the actual generating unit. The calculation principle for the synchronization delay of switching actions is the same.

[0048] The simulation module supports fault injection in virtual-real integrated scenarios. The virtual-real integrated control module can inject single or compound faults into the simulation module based on the real-time operating conditions of the actual unit, without affecting the safe operation of the actual unit. This tests the fault response capability of the equipment under test and its compatibility with other equipment. For example, the virtual-real integrated control module can send fault commands to the simulation module, controlling the simulation module to simulate the fault scenario corresponding to the fault command, providing a fault scenario for the equipment under test, acquiring the response data of the equipment under test, and the verification and evaluation unit calculates a total score based on the response data. This score is then compared with a preset score threshold to determine whether the equipment under test is qualified.

[0049] The simulation model can also be manually or automatically calibrated by collecting actual equipment parameters of the real unit, including rated capacity, impedance value, switching frequency, control logic parameters, etc. After calibration, the deviation between the simulation output and the actual unit operation data is controlled within ±1%, realizing accurate mapping between the real unit and the simulation model, and simulating the normal operation, fault state and dynamic response characteristics of the real unit.

[0050] Furthermore, the signal conversion module includes a signal conversion unit and a data calibration unit; the signal conversion unit is used to convert the operating characteristic data into physical data adapted to the physical data storage module; the data calibration unit is used to perform a rationality check on the physical data and obtain a check result; when the check result is a check failure, an alarm is triggered and the transmission of the physical data to the physical data storage module is terminated.

[0051] For example, the data verification unit performs a reasonableness check on the converted current and voltage. When the instantaneous current value exceeds twice the rated value or the voltage exceeds the range of 0~100V, an alarm is triggered and data transmission is terminated.

[0052] The pumped storage power station equipment verification system provided in this invention, by setting a parameter synchronization unit, obtains real parameters from the actual unit and updates the simulation parameters in the simulation module and the control parameters in the control panel module. This ensures that the virtual machine group and the real unit operate synchronously, providing the same operating environment for the verification process of the equipment to be verified. This guarantees that the verification results accurately reflect the operating performance of the equipment under verification in the real machine environment, improving the accuracy of the verification results. By providing a fault injection function, it can not only verify the normal operation scenarios of the equipment under verification but also test the fault handling capabilities of the equipment under verification, improving the accuracy and comprehensiveness of the verification results. It can be widely applied to the selection, upgrading, and performance optimization of new equipment in pumped storage power stations, providing data support for power station equipment operation and maintenance and reducing operation and maintenance costs.

[0053] Example 3 This invention provides a method for verifying pumped storage power station equipment. Figure 3 This is a flowchart illustrating a method for verifying pumped storage power station equipment, provided as an embodiment of the present invention. Figure 3 As shown, the equipment verification method for this pumped storage power station may include the following steps: Step S301: Obtain operation control commands from the actual unit computer monitoring system.

[0054] The virtual-real integrated control module obtains operation control commands in real time from the real unit's computer monitoring system. For example, operation control commands can include unit start-up, unit shutdown, active power adjustment, and mechanical failure shutdown.

[0055] Furthermore, before obtaining operation control commands from the real unit computer monitoring system, the process includes: reading the equipment parameters of the real unit from the real unit computer monitoring system as real parameters; inputting the real parameters into the simulation module to update the model parameters in the simulation module.

[0056] The simulation module needs to construct simulation models that correspond one-to-one with the real units. The virtual-real fusion control module reads the equipment parameters of the real units from the real unit's computer monitoring system, including rated capacity, impedance value, switching frequency, control logic parameters, etc., and inputs them into the simulation module through manual input or automatic matching. This completes the accurate calibration of the simulation model. After calibration, the deviation between the simulation output and the real unit's operating data is controlled within ±1%, achieving accurate mapping between the physical entity and the virtual model, and simulating the normal operation, fault state, and dynamic response characteristics of the real unit.

[0057] Furthermore, the virtual-real fusion control module communicates with the real unit's computer monitoring system to configure parameter synchronization cycles, communication security strategies, and data transmission protocols. It then synchronizes setpoint parameters, control logic, and equipment status parameters according to a preset cycle. The device to be verified replaces the corresponding device in the control panel module. Through the absorption and conversion module, the device to be verified is integrated and adapted to the simulation module, the virtual-real fusion control module, the simulation switch module, and other devices in the control panel module, achieving a closed-loop connection.

[0058] Step S302: The operation control command is sent to the control panel module to instruct the control panel module to drive the simulation module to run according to the operation control command, obtain operation characteristic data, and send the operation characteristic data to the control panel module and the simulation switch module.

[0059] The virtual-real fusion control module sends operation control commands to the control panel module, which in turn drives the simulation module to synchronously execute the operation control commands, achieving synchronized operation between the virtual simulation unit and the real unit, and obtaining operational characteristic data. This operational characteristic data includes control data (switch status data) for switch actions, electrical quantity data, and protection action data. For example, switch status data could be the circuit breaker's open / closed status, disconnector position, etc.; electrical quantity data could be voltage, current, power, frequency, etc.; and protection action data could be protection activation, etc.

[0060] Step S303: Obtain the response data of the device to be verified in the control panel module in response to the operating characteristic data and the status feedback signal fed back by the simulation switch module, as well as the preset standard operating data.

[0061] The operational characteristic data includes control data for switching actions. The simulation module sends the control data to the simulation switch module, which then executes the corresponding switching actions based on the control data, obtains a status feedback signal, and sends the status feedback signal to the unit LCU. The equipment in the control panel module executes corresponding protection actions according to the preset action execution logic based on the status feedback signal and operational characteristic data. The LCU in the control panel module collects the response data generated by the equipment under test when executing corresponding protection actions in real time and sends it to the virtual-real fusion control module. The virtual-real fusion control module receives the response data of the equipment under test in response to the operational characteristic data, including the action response time, setpoint execution accuracy, control logic consistency, operating power consumption, and fault handling capability data. The preset standard data refers to the responses that the equipment under test should take in response to operational control commands, which are pre-stored in the virtual-real fusion control module. The preset standard operational data can be queried using operational control commands through table lookups or other methods.

[0062] Step S304: Compare the response data with the standard operating data to evaluate the performance of the device to be verified and obtain the evaluation result.

[0063] The response data is compared with standard operating data to obtain quantitative verification indicators, thereby generating quantitative verification results, i.e., evaluation results. Specifically, the quantitative verification indicators for the verification evaluation unit include action accuracy, response real-time performance, parameter adaptability, operational stability, and fault tolerance. A total score is obtained by weighting the indicators to determine whether the equipment under verification is qualified. The specific calculation formula is as follows: Total Score = 0.25 × Action Accuracy Score + 0.25 × Real-time Response Score + 0.2 × Parameter Adaptability Score + 0.2 × Operational Stability Score + 0.1 × Fault Tolerance Score The total score is compared with a preset score threshold. If the total score is greater than or equal to the score threshold, the verification is deemed qualified, and the evaluation result is deemed qualified. If the total score is less than the score threshold, the verification is deemed unqualified.

[0064] In another possible implementation, the operational data to be verified collected by the actual unit's computer monitoring system refers to the data on the action response time, setpoint execution accuracy, control logic consistency, operating power consumption, and fault handling capabilities of the equipment corresponding to the equipment to be verified in the actual unit. The response data can also be compared with the operational data to be verified to obtain quantitative verification indicators, thereby generating quantitative verification results.

[0065] Furthermore, based on verification requirements, the virtual-real fusion control module can inject single faults into the simulation module without affecting the safe operation of the actual unit. These faults include SFC commutation failure, grounding of the A-phase branch 1 of the generator stator winding, or compound faults such as the failure of the inter-turn short-circuit coupling circuit breaker of the main transformer. This tests the fault response capability of the equipment under verification and its compatibility with other equipment, and records the response data of the equipment under verification. In addition to the aforementioned primary equipment faults, the fault scenarios also support process faults and physical panel automation component faults. Process faults are addressed by modifying the setpoint parameters of the unit LCU in the panel module through the virtual-real fusion control module, such as various command response delay parameters, to interrupt or disrupt the execution of the control process. There are many types of automation component faults in the panel module, including relay and circuit breaker faults, unconnected panel terminals, and broken cable cores. By comprehensively configuring and combining primary equipment faults, process faults, and physical panel automation component faults, various fault scenarios can be simulated and reproduced on-site.

[0066] Furthermore, a long-term operational verification cycle of no less than 30 days is set to continuously monitor the long-term operational stability and parameter adaptability of the equipment to be verified. After the simulation cycle ends, the verification and evaluation unit generates a complete verification report for the equipment to be verified based on the full-cycle operational data, including a quantitative score (a weighted score ≥ 85 points is considered a passing verification), performance advantages and disadvantages, and targeted optimization suggestions. If the verification is successful, the equipment to be verified is deemed suitable for replacement with a real machine; if it fails, the verification process can be repeated after optimization.

[0067] Figure 4 This is a schematic diagram of a system for verifying a new SFC control and protection cabinet for a pumped storage power station, provided as an embodiment of the present invention. Figure 4 As shown, the actual unit computer monitoring system, virtual-to-real fusion control module, and signal conversion module are not shown. Other equipment in the secondary control panel includes the speed governor electrical cabinet, relay protection cabinet, and excitation system (or AC excitation system). The speed governor electrical cabinet and relay protection cabinet provide external protection for the SFC control protection cabinet. The specific process is as follows: S1. Model Construction and Calibration: Based on the actual parameters of Unit #1 of the power plant, a simulation model was constructed using the simulation module, including the generator motor, input transformer, output transformer, lines (switches (ICB, DS1, DS2, OCB), instrument transformers (CT, PT), power bus section), rectifier bridge, inverter bridge, and smoothing reactor. Core parameters such as the rated capacity and impedance value of the actual unit were collected to complete the manual calibration of the simulation model. After calibration, the deviation between the operating characteristic data output by the simulation model and the actual unit operating data was 0.8%. S2. Communication Connection Configuration: The virtual-physical fusion control module communicates with the real unit computer monitoring system via the IEC 61850 protocol. The configuration parameter synchronization cycle is 1 minute, AES encryption is used for transmission, the test transmission delay is 35ms, and the data transmission accuracy is 100%. S3. New equipment access: Replace the original imported SFC control and protection cabinet in the panel module with the domestically produced SFC control and protection cabinet to be verified (equipment to be verified). The signal adaptation with the simulation module is completed through the signal conversion module, and the initial test signal interaction is normal. S4. Virtual-Real Synchronous Operation: The virtual-real fusion control module receives the operation control commands from the LCU in the real unit and drives the simulation module, simulation switch module, signal conversion module and the panel module containing the domestic SFC control and protection cabinet to be verified to synchronously perform actions such as pumping / generating mode switching and load adjustment. The real unit setpoint parameters and the control parameters of the panel module are synchronized once every 1 minute (i.e., the operation control commands of the real unit computer monitoring system are synchronized once every 1 minute). S5. Data Acquisition and Evaluation: The virtual-real fusion control module continuously receives data such as the action response time and setpoint execution accuracy of the domestic SFC control and protection cabinet to be verified, compares it with the historical and current operating data of the real SFC control and protection cabinet, and generates quantitative evaluation results in real time. S6. Fault Scenario Test: During the operation of the equipment to be verified, the virtual-real fusion control module injects the SFC commutation failure fault into the simulation module, receives the fault identification time and trip action sequence of the equipment to be verified (i.e., records the response data of the equipment to be verified), and verifies the consistency between its fault handling logic and the protection strategy of the real SFC control protection cabinet. S7. Long-Term Verification and Report: After 90 days of long-term operation verification, the domestically produced SFC control and protection cabinet to be verified underwent over 200 start-stop cycles synchronously with the actual unit, experiencing various operating conditions of the pumped storage power station, including shutdown ST to switch to power G, generation G to switch to power GC, shutdown ST to switch to power GC, shutdown ST to switch to pumping phase PC, pumping phase PC to switch to pumping P, shutdown ST to switch to pumping P, pumping P to switch to power G, mechanical failure shutdown, electrical failure shutdown, and emergency failure shutdown, including 3 electrical failure shutdowns and 2 mechanical failure shutdowns. Both the domestically produced SFC control and protection cabinet to be verified and the Siemens SFC control and protection cabinet configured in the actual unit successfully completed the SFC control actions, and the action time of the domestically produced SFC control and protection cabinet to be verified did not exceed that of the Siemens SFC control and protection cabinet. Overall, the new equipment operated stably without any abnormal actions. According to the verification and evaluation system, the verification and evaluation unit generated a weighted score of 92.08 points (qualified), which indicates that the new equipment has good adaptability and can be used to replace the original SFC control and protection cabinet of Unit #1. The scoring indicators include action accuracy, response real-time performance, parameter adaptability, operation stability and fault tolerance, with corresponding weights of 0.25, 0.25, 0.2, 0.2 and 0.1.

[0068] Among them, the accuracy score of the operation in this verification operation was 93.5, the real-time response score was 92.7, the parameter adaptability score was 92, the overall operational stability score was 90, and the overall fault tolerance score was 91.3.

[0069] In another example, two new devices, the SFC control and protection cabinet and the main transformer protection cabinet, were simultaneously connected. Synchronous verification was achieved through the parallel access function of the control panel module: the signal interfaces and communication links of the two new devices were configured, and the virtual-real fusion control module allocated independent parameter synchronization channels and data acquisition channels; the parameters of the actual equipment were synchronized according to a preset cycle, driving the virtual simulation unit and the real unit, including the two new devices, to operate synchronously, and collecting operating data from both new devices; the verification and evaluation unit quantitatively evaluated the two new devices, generating independent verification results, and simultaneously supporting performance comparison analysis of the two devices; after 60 days of long-term operation, both new devices passed the verification, providing a reliable basis for the batch upgrade of power plant equipment.

[0070] This invention provides a method for verifying pumped storage power station equipment. By acquiring the operation control commands of each piece of equipment in the pumped storage power station and controlling the simulation module to execute these commands, the method ensures that the simulation operates synchronously with the real unit. This provides the equipment to be verified with the same operating environment as the real unit, and the verification results accurately reflect the operating performance of the new equipment in the real environment, thereby improving the accuracy of the verification. By setting quantitative scoring, specific data support is provided for the operation and maintenance of power station equipment. This method can be widely applied to the selection, upgrading, and performance optimization of new equipment in pumped storage power stations, reducing operation and maintenance costs.

[0071] Example 4 This invention also provides an electronic device for operating the above-described pumped storage power station equipment verification method; see [link to related documentation]. Figure 5 The diagram shows the structure of an electronic device, which includes a memory 500 and a processor 501. The memory 500 stores one or more computer instructions, which are executed by the processor 501 to implement the above-mentioned pumped storage power station equipment verification method.

[0072] Furthermore, Figure 5 The electronic device shown also includes a bus 502 and a communication interface 503. The processor 501, the communication interface 503 and the memory 500 are connected via the bus 502.

[0073] The memory 500 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 503 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc. The bus 502 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0074] Processor 501 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 501 or by instructions in software form. Processor 501 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a readily available storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 500, and processor 501 reads information from memory 500 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0075] This invention also provides a computer-readable storage medium storing computer-executable instructions. When these computer-executable instructions are called and executed by a processor, they cause the processor to implement the above-described pumped storage power station equipment verification method. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0076] The computer program product for the method of verifying pumped storage power station equipment provided in this embodiment of the invention includes a computer-readable storage medium storing non-volatile program code executable by a processor. The instructions included in the program code can be used to execute the methods described in the preceding method embodiments. For specific implementation, please refer to the method embodiments, which will not be repeated here.

[0077] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0078] In the several embodiments provided by this invention, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0079] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0080] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0081] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0082] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A pumped storage power station equipment verification system, characterized in that, The system includes a virtual-real fusion control module, a simulation module, a simulation switch module, a signal conversion module, and a control panel module. The virtual-real fusion control module is communicatively connected to the unit LCU in the simulation module and the control panel module, respectively. The simulation module is communicatively connected to the simulation switch module and the signal conversion module, respectively. The simulation switch module is communicatively connected to the unit LCU. The virtual-real fusion control module is used to receive operation control commands from the real unit computer monitoring system and send the operation control commands to the unit LCU; receive response data from the panel module of the device to be verified, evaluate the performance of the device to be verified, and obtain the evaluation result of the device to be verified; the evaluation result includes action accuracy, response real-time performance, parameter adaptability, operation stability and fault tolerance. The simulation module is used to simulate the operating status of the primary equipment in the pumped storage power station under the control of the unit LCU, obtain operating characteristic data, and send the switch control data for switch action in the operating characteristic data to the simulation switch module. The signal conversion module is used to convert the operating characteristic data into physical data that is compatible with the panel module; The simulation switch module is used to execute corresponding switching actions according to the switch control data, obtain a status feedback signal and send it to the unit LCU in the panel module; The unit LCU is used to receive the operation control command and control the simulation module to simulate the operation status of the primary equipment in the pumped storage power station according to the operation control command, so as to realize synchronous operation with the real unit in the pumped storage power station; according to the status feedback signal and the operation characteristic data, control the secondary cabinet in the panel module to perform corresponding protection actions, and collect the response data of the equipment to be verified in the secondary cabinet; The control panel module is used to connect to the device to be verified, so as to perform long-term operational performance verification on the device to be verified without interrupting the operation of the actual unit; the device to be verified is at least one device in the secondary control panel; the other devices in the secondary control panel, excluding the device to be verified, are of the same model as the corresponding devices in the actual unit.

2. The system according to claim 1, characterized in that, The virtual-real fusion control module includes a parameter synchronization unit; the parameter synchronization unit is used to obtain the real parameters of each device in the pumped storage power station from the real unit computer monitoring system, and update the simulation parameters in the simulation module and the control parameters of the control panel module according to the real parameters.

3. The system according to claim 1, characterized in that, The virtual-real fusion control module includes a verification and evaluation unit; the verification and evaluation unit is used to receive the response data of the equipment to be verified from the LCU of the unit, and compare the response data with the preset standard verification data to generate an evaluation result; wherein, the response data includes the action response time, setpoint execution accuracy, control logic consistency, operating power consumption and fault handling capability data of the equipment to be verified.

4. The system according to claim 3, characterized in that, The verification and evaluation unit is also used to receive the response data of the device to be verified from the LCU of the unit, as well as the operation data of the actual unit computer monitoring system corresponding to the device to be verified, and compare the response data with the operation data to be verified to generate an evaluation result.

5. The system according to claim 1, characterized in that, The virtual-real fusion control module includes a synchronization deviation monitoring unit; the synchronization deviation monitoring unit is used to receive simulation data fed back by the unit LCU and the operation data of the real unit computer monitoring system, and compare the simulation data and the operation data to obtain the data deviation result; when the data deviation result meets the deviation condition, the simulation module is stopped from driving.

6. The system according to claim 1, characterized in that, The secondary control cabinet includes a speed controller electrical cabinet, an excitation regulating cabinet, a relay protection cabinet, an SFC control and protection cabinet, and an AC / DC distribution cabinet.

7. The system according to claim 6, characterized in that, The control panel module adopts a standardized interface design.

8. A method for verifying pumped storage power station equipment, characterized in that, Applied to the virtual-real fusion control module as described in any one of claims 1-7, the method includes: Obtain operational control commands from the actual unit's computer monitoring system; The operation control command is sent to the panel module to instruct the panel module to drive the simulation module to run according to the operation control command, obtain operation characteristic data, and send the operation characteristic data to the panel module and the simulation switch module; The system acquires response data from the device to be verified in the control panel module in response to the operating characteristic data and the status feedback signal from the simulation switch module, as well as preset standard operating data. The response data is compared with the standard operating data to evaluate the performance of the device to be verified and obtain the evaluation result.

9. The method according to claim 8, characterized in that, Before obtaining operational control commands from the actual unit's computer monitoring system, the following steps are also included: The equipment parameters of the actual unit are read from the actual unit's computer monitoring system and used as the actual parameters. The actual parameters are input into the simulation module to update the model parameters in the simulation module.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement the pumped storage power station equipment verification method according to any one of claims 8 to 9.

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