CN-122026357-A - Battery energy storage additional damping control method and device and electronic equipment

CN122026357ACN 122026357 ACN122026357 ACN 122026357ACN-122026357-A

Abstract

The application relates to the technical field of operation of an electric power system, in particular to a battery energy storage additional damping control method, a device and electronic equipment, wherein the method comprises the steps of compiling battery energy storage additional damping control software of an energy storage power station according to software and hardware platform resources and program coding environment of the energy storage power station, and generating a configuration file according to the control software; and finally, the configuration file is burnt into the energy storage converter, and software is called by the energy storage converter to realize additional damping control by combining the operation data of the power station. Therefore, the problems of poor suppression effect, easiness in inducing new resonance and the like in the thermal power subsynchronous resonance suppression related technology are solved.

Inventors

XIE XIAORONG
WANG XI
HUANG MINGJUN
LIU YIXUAN

Assignees

清华大学

Dates

Publication Date: 20260512
Application Date: 20260109

Claims (10)

1. The battery energy storage additional damping control method is characterized by comprising the following steps of: According to software and hardware platform resources and program coding environment of an energy storage power station, battery energy storage additional damping control software of the energy storage power station is compiled, and a configuration file is generated according to the battery energy storage additional damping control software; Calling a configuration file to start an additional damping control interface, determining an operation model, modal parameters and function execution logic of battery energy storage additional damping control at the additional damping control interface, and writing the operation model, the modal parameters and the function execution logic into the configuration file; And burning the configuration file to an energy storage converter of the energy storage power station, calling the configuration file to operate the battery energy storage additional damping control software through the energy storage converter, and performing battery energy storage additional damping control on the energy storage power station by utilizing the battery energy storage additional damping control software and operation data of the energy storage power station.
2. The method of claim 1, wherein the additional damping control software comprises a parameter design and issuing step, a control execution step, a test signal generation step, a wave recording execution step, and a state verification step, Additional damping control parameters are designed through the parameter design and issuing links; determining the execution parameters of the additional damping control through the control execution link; generating parameters of the test signal through the test signal generation link; Determining a wave recording parameter of the test signal through the wave recording execution link; and determining a verification parameter of an output result through the state verification link.
3. The battery stored energy additional damping control method according to claim 2, wherein the additional damping control parameters include a signal sampling rate, an amplitude conversion scaling factor, an oscillation mode frequency, an output clipping level, a proportional control gain, a phase shift time constant and a total clipping level, a parameter update flag bit, an enable flag and a control parameter set of additional damping control channel input; The execution parameters of the additional damping control comprise an input signal of the additional damping control, various control instructions and parameters adopted by the additional damping control, an output signal of the additional damping control and a signal quantity to be monitored and displayed by the additional damping control; The parameters of the test signal comprise the frequency, amplitude, duration and output signal of the test signal; the wave recording parameters comprise an indication signal for starting and stopping wave recording and a wave recording output signal; The verification parameters comprise a first reference input signal, a second reference input signal, an additional damping control filter output signal, an additional damping control output signal and an additional damping control running state, wherein the first reference input signal has the same meaning as the same name variable of the control execution link, and the second reference input signal has the same meaning as the same name variable of the control execution link.
4. The battery energy storage supplemental damping control method according to claim 1, further comprising, prior to generating a configuration file from the battery energy storage supplemental damping control software: acquiring output voltage of the energy storage power station at a grid-connected point; And taking the per unit value after the output voltage conversion as a feedback input signal of the additional damping control.
5. The method of claim 1, wherein determining, at the additional damping control interface, an operational model, modal parameters, and function execution logic of the battery energy storage additional damping control comprises: Invoking the configuration file to start an additional damping control interface, and identifying whether the additional damping control interface is started for the first time, wherein at least one of a debugging mode button, an operation mode selection button and a setting button is displayed on the additional damping control interface; If the additional damping control interface is started for the first time, triggering the setting button, entering a parameter setting process, triggering the debugging mode button after the parameter setting process is completed, and entering a debugging mode process; If the additional damping control interface is not started for the first time, a trigger prompt of the debugging mode button is generated, and when the fact that the user does not trigger the debugging mode button is identified, the trigger prompt of the operation mode selection button is generated, and any one of a normal operation mode and an additional damping control mode is selected to be entered according to the user.
6. The battery stored energy additional damping control method of claim 5, wherein the debug mode flow comprises: identifying whether additional damping parameters need to be modified; resetting the additional damping parameters if the additional damping parameters need to be modified; If the additional damping parameters do not need to be modified, identifying whether a test signal needs to be injected; And triggering the operation mode selection button if the test signal does not need to be injected.
7. The battery energy storage additional damping control method of claim 1, further comprising, prior to burning the configuration file into an energy storage converter of the energy storage power station: Acquiring at least one of an energy storage converter semi-physical object and a physical simulation model; testing a software program and a function execution interface of the energy storage additional control software according to at least one of the energy storage converter semi-physical object and the physical simulation model; and verifying the battery energy storage additional damping effect of the energy storage additional control software according to a test result, and burning the configuration file to an energy storage converter of the energy storage power station after the verification of the battery energy storage additional damping effect is passed.
8. The battery energy storage supplemental damping control method according to claim 1, further comprising, prior to invoking the configuration file to run the battery energy storage supplemental damping control software by the energy storage converter: controlling the energy storage converter to enter a test mode; In the test mode, the energy storage converter is controlled to output a group of subsynchronous currents according to amplitude, frequency and duration, and subsynchronous resonance of a corresponding mode is excited according to the subsynchronous currents; And performing performance test of additional damping control on the battery energy storage device, and setting a phase-shifting time constant of a phase-shifting link and proportional gain of the output limiting link according to performance test data.
9. A battery stored energy additional damping control device, comprising: the acquisition module is used for acquiring the energy storage voltage of the battery energy storage device at the grid-connected point; The input module is used for taking the converted per unit value of the energy storage voltage as a feedback input signal of the additional damping control, inputting the feedback input signal into an additional damping control channel of the battery energy storage device, and outputting a first reference current signal through the additional damping control channel; the suppression module is used for generating a first reference current signal according to the energy storage voltage, superposing the first reference current signal and a current output signal of the energy storage converter subjected to outer loop control to obtain a second reference current signal, and performing inner loop control on the energy storage converter according to the second reference current signal to suppress subsynchronous resonance; And the control module is used for generating a control signal according to the per unit value of the voltage output signal of the energy storage converter subjected to inner loop control after conversion, and performing outer loop control on the energy storage converter according to the control signal.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the battery stored energy additive damping control method of any one of claims 1-8.

Description

Battery energy storage additional damping control method and device and electronic equipment Technical Field The application relates to the technical field of motor system operation, in particular to a battery energy storage additional damping control method and device and electronic equipment. Background Subsynchronous resonance (subsynchronous resonance, SSR) of the thermal power unit in a series compensation transmission scene can cause serious consequences such as shafting fatigue, damage, even fracture, voltage and current overrun and the like of the thermal power unit, and is concerned by academia and industry for a long time since the last century. Currently, there are various typical inhibition schemes for the SSR phenomenon of thermal power. The method comprises the steps of adjusting machine network parameters to change resonance frequency of an equivalent circuit and strengthen equivalent damping, adding excitation damping control to enable an excitation winding to generate subsynchronous frequency voltage and current with damping effect on the basis of conventional adjustment of an excitation control system, blocking filtering, namely, connecting multiple groups of parallel resonance circuits formed by inductance, capacitance and resistance in series to enable the parallel resonance circuits to have higher impedance characteristics on complementary oscillation frequencies, and injecting dynamic compensation current with complementary frequency by a machine end subsynchronous damping controller through detecting torsional vibration information of a machine set in real time to change subsynchronous frequency characteristics. However, the scheme still has partial shortages in engineering practice, the additional excitation damping control introduces new control logic, which may cause poor coordination of new and old control links and influence the inhibition effect, the blocking filtering may cause SSR of induction generator effect type under the condition of improper parameters, and the machine-end subsynchronous damping controller needs to additionally increase converter equipment with the capacity of tens of megavolts at the machine end, so that the problems of manufacturing and cost are not neglected. Therefore, in the related technology of thermal power subsynchronous resonance suppression, the problems of poor suppression effect, easy initiation of new resonance and the like still exist. Disclosure of Invention The application provides a battery energy storage additional damping control method, a device and electronic equipment, which are used for solving the problems of poor suppression effect, easy induction of new resonance due to parameter mismatch and the like in the thermal power subsynchronous resonance suppression related technology. The embodiment of the first aspect of the application provides a battery energy storage additional damping control method, which comprises the following steps of compiling battery energy storage additional damping control software of an energy storage power station according to software and hardware platform resources and program coding environment of the energy storage power station, generating a configuration file according to the battery energy storage additional damping control software, calling the configuration file to start an additional damping control interface, determining an operation model, modal parameters and function execution logic of the battery energy storage additional damping control at the additional damping control interface, writing the operation model, modal parameters and function execution logic into the configuration file, burning the configuration file into an energy storage converter of the energy storage power station, calling the configuration file through the energy storage converter to operate the battery energy storage additional damping control software, and performing battery energy storage additional damping control on the energy storage power station by utilizing the battery energy storage additional damping control software and operation data of the energy storage power station. According to one embodiment of the application, the battery energy storage additional damping control software comprises a parameter design and issuing link, a control execution link, a test signal generation link, a wave recording execution link and a state verification link, wherein additional damping control parameters are designed through the parameter design and issuing link, execution parameters of the additional damping control are determined through the control execution link, parameters of a test signal are generated through the test signal generation link, wave recording parameters of the test signal are determined through the wave recording execution link, and verification parameters of an output result are determined through the state verification link. According to one embodiment of the application, the additional damping control