CN114115191A - Hardware-in-loop test method and device for power control system of flexible direct new energy station - Google Patents
Hardware-in-loop test method and device for power control system of flexible direct new energy station Download PDFInfo
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Abstract
A hardware-in-loop test method and device for a power control system of a flexible direct new energy station are disclosed, the method comprises the following steps: acquiring actual measurement data and a circuit diagram of various types of equipment of the flexible and direct new energy station, generating a single equipment model according to the actual measurement data, and establishing a simulation test model by using the single equipment model and the circuit diagram; acquiring a preset test instruction value, issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using a simulation test model to obtain a simulation test result; and determining the power control performance index according to the simulation test result and a preset test instruction value. According to the method, a hardware-in-loop simulation test model is built based on measured data, and the power control performance test is realized by utilizing hardware-in-loop simulation, so that the power control performance index is obtained, the closed-loop test and analysis of the whole working condition are realized, the test efficiency is greatly improved, the error rate of manual operation is reduced, and the accuracy of the power control performance simulation test result of the flexible and straight new energy station is ensured.
Description
Technical Field
The invention relates to the technical field of flexible and direct new energy stations, in particular to a hardware-in-loop test method and device for a power control system of a flexible and direct new energy station.
Background
At present, the development target of a novel power system taking new energy as a main body promotes the further development of a new energy power generation technology to support the aim of successfully achieving double carbon, reduce the environmental protection pressure and guarantee the energy safety. However, as the grid-connected scale of new energy is continuously enlarged, the power generation characteristics of the new energy power station, especially the new energy power station, mainly include power electronic equipment, and the operation characteristics of the new energy power station are greatly different from those of a traditional energy power plant, which brings significant impact on the safe and stable operation of a power grid.
Therefore, in order to deal with the operation problem of the power grid after the large-scale access of new energy, it is necessary to test and verify the performance of the station power control system equipped in the new energy power station. But the performance of the power control system of the new energy station is difficult to detect comprehensively through field actual tests due to the constraints of power grid safety and test conditions. In addition, due to the uncertainty of new energy and the difference of systems where power stations are located, the power control equipment of the station, which has been traditionally subjected to a function check test only before leaving the factory, cannot well meet the requirements of actual operation.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiments of the present invention mainly aim to provide a hardware-in-loop test method and apparatus for a power control system of a flexible-direct new energy station, so as to implement a laboratory hardware-in-loop performance test on the power control system of the new energy station accessing a flexible-direct power grid.
In order to achieve the above object, an embodiment of the present invention provides a hardware-in-loop testing method for a power control system of a flexible direct new energy station, where the method includes:
acquiring actual measurement data and a circuit diagram of various types of equipment of the flexible and direct new energy station, generating a single equipment model according to the actual measurement data, and establishing a simulation test model by using the single equipment model and the circuit diagram;
acquiring a preset test instruction value, issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result;
and determining the power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value.
Optionally, in an embodiment of the present invention, the wiring diagram includes an electrical main wiring diagram and a power collection wiring diagram of the flexible direct new energy station.
Optionally, in an embodiment of the present invention, the establishing a simulation test model by using the single equipment model and the circuit diagram includes:
determining the short-circuit capacity of an equivalent power supply at the power grid side according to the acquired regional power grid short-circuit current of the flexible-direct new energy station;
and establishing the simulation test model according to the short circuit capacity, the electric main wiring diagram, the current collection circuit diagram and the single equipment model.
Optionally, in an embodiment of the present invention, the issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result includes:
issuing the test instruction value, and determining the issuing time of the test instruction value;
changing a control target of a flexible direct new energy station power control system by using the test instruction value, or carrying out frequency disturbance and short circuit disturbance on the simulation test model to obtain a simulation test result; and the simulation test result comprises a grid-connected point voltage value and a grid-connected point current value.
Optionally, in an embodiment of the present invention, the determining, according to the simulation test result and a preset test instruction value, a power control performance index of the flexible direct new energy station includes:
determining a test value according to the grid-connected point voltage value, the grid-connected point current value, the test instruction value and the issuing moment thereof; the test values comprise a voltage value, reactive power and active power of a grid-connected point of the flexible and direct new energy station;
determining a power control performance index of the flexible and direct new energy station according to the voltage value, the reactive power and the active power of the flexible and direct new energy station; and the power control performance indexes of the flexible direct new energy station comprise control precision, adjusting time and the like.
The embodiment of the invention also provides a hardware-in-loop testing device of the power control system of the flexible direct new energy station, which comprises:
the simulation test model module is used for acquiring actual measurement data and a circuit diagram of various devices of the flexible and direct new energy station, generating a single device model according to the actual measurement data, and establishing a simulation test model by using the single device model and the circuit diagram;
the simulation test result module is used for acquiring a preset test instruction value, issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result;
and the performance index module is used for determining the power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value.
Optionally, in an embodiment of the present invention, the wiring diagram includes an electrical main wiring diagram and a power collection wiring diagram of the flexible direct new energy station.
Optionally, in an embodiment of the present invention, the simulation test model module includes:
the short-circuit capacity unit is used for determining the short-circuit capacity of the equivalent power supply at the power grid side according to the acquired regional power grid short-circuit current of the flexible-direct new energy station;
and the test model unit is used for establishing the simulation test model according to the short circuit capacity, the electric main wiring diagram, the current collection circuit diagram and the single equipment model.
Optionally, in an embodiment of the present invention, the simulation test result module includes:
the instruction value issuing unit is used for issuing the test instruction value and determining the issuing time of the test instruction value;
the test result unit is used for changing a control target of the flexible and direct new energy station power control system or carrying out frequency disturbance and short circuit disturbance on the simulation test model by using the test instruction value to obtain a simulation test result; and the simulation test result comprises a grid-connected point voltage value and a grid-connected point current value.
Optionally, in an embodiment of the present invention, the performance index module includes:
the test value unit is used for determining a test value according to the grid-connected point voltage value, the grid-connected point current value, the test instruction value and the issuing moment thereof; the test values comprise a voltage value, reactive power and active power of the flexible direct new energy station;
the performance index unit is used for determining a power control performance index of the flexible direct new energy station according to the voltage value, the reactive power and the active power of the flexible direct new energy station; and the power control performance index of the flexible direct new energy station comprises control precision and adjusting time.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method when executing the program.
The present invention also provides a computer-readable storage medium storing a computer program for executing the above method.
According to the method, based on the actual measurement data of the power control performance of various devices of the flexible and straight new energy field station, a hardware-in-loop simulation test model containing the detailed topology of the flexible and straight new energy field station is built, and the power control performance test of the flexible and straight new energy field station is realized by using disturbance simulation, so that the power control performance index of the flexible and straight new energy field station is obtained, the full-working-condition closed-loop test and analysis of the flexible and straight new energy field station are realized, the test efficiency is greatly improved, the error rate of manual operation is reduced, and the accuracy of the power control performance simulation test result of the flexible and straight new energy field station is ensured.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a flowchart of a hardware-in-loop testing method of a power control system of a flexible direct new energy station according to an embodiment of the present invention;
FIG. 2 is a flow chart of establishing a simulation test model in an embodiment of the present invention;
FIG. 3 is a flowchart of obtaining simulation test results in an embodiment of the present invention;
FIG. 4 is a flow chart of determining a power control performance indicator in an embodiment of the present invention;
fig. 5 is a schematic system diagram illustrating a hardware-in-the-loop testing method for a power control system of a flexible direct new energy station according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of a hardware-in-loop test of the power control system of the flexible direct new energy station according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a hardware-in-the-loop testing apparatus of a power control system of a flexible direct new energy station according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a simulation test model module according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a simulation test result module according to an embodiment of the present invention;
FIG. 10 is a block diagram of a performance indicator module according to an embodiment of the invention;
fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a hardware-in-loop test method and device for a power control system of a flexible direct new energy station.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, which is a flowchart of a hardware-in-loop testing method of a power control system of a flexible direct new energy station according to an embodiment of the present invention, an execution subject of the hardware-in-loop testing method of the flexible direct new energy station provided by the embodiment of the present invention includes, but is not limited to, a computer. The method shown in the figure comprises the following steps:
and step S1, acquiring measured data and a circuit diagram of various devices of the flexible direct new energy station, generating a single device model according to the measured data, and establishing a simulation test model by using the single device model and the circuit diagram.
The method comprises the steps of obtaining actual measurement data and a circuit diagram of power control performance of various devices of the flexible direct new energy station, such as a wind turbine generator, a photovoltaic inverter, a dynamic reactive power compensation device and the like. And building a single equipment model with the control characteristics consistent with the measured data by using the measured data. Further, the wiring diagram includes an electric main wiring diagram and a power collecting wiring diagram.
Further, the parameters of the single equipment model include: the active power adjusting time coefficient, the active power overshoot coefficient, the active power adjusting time delay, the reactive power adjusting time coefficient, the reactive power overshoot coefficient and the reactive power adjusting time delay.
Further, according to a short-circuit current calculation result of a power grid in the flexible and direct new energy field station region, the short-circuit capacity of an equivalent power supply on the power grid side is determined, and then a single equipment model is used for building a simulation test model which is completely consistent with the electrical topology of the single equipment model by combining a main wiring diagram and a current collection circuit diagram of electrical equipment of the flexible and direct new energy field station to be tested.
And step S2, acquiring a preset test instruction value, issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result.
The preset test instruction values comprise a reactive power instruction value, a voltage instruction value, an active power instruction value, a primary frequency modulation test reference value and the like. And issuing a preset test instruction value, recording the issuing time, and testing the power control performance of the flexible and direct new energy station by using the simulation test model.
Further, the power control performance test of the flexible direct new energy station comprises test items such as an AVC performance test, an AGC performance test and a primary frequency modulation performance test. Specifically, after the test instruction is issued, the control target of the power control system of the flexible and direct new energy station is changed, or short-circuit disturbance and/or frequency disturbance are/is generated at the corresponding position in the simulation test model by using a disturbance simulation mode. In addition, voltage and current signals of the outlet end of the grid-connected point of the flexible and direct new energy station are collected to serve as simulation test results.
And step S3, determining the power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value.
And calculating values such as voltage, reactive power, active power and the like of the flexible and direct new energy station according to the simulation test result, and taking the values as test values. And determining various power control performance indexes of different test items, such as control precision, adjusting time and the like by using the test value, the preset test instruction value and the issuing time thereof.
As an embodiment of the invention, the wiring diagram comprises an electrical main wiring diagram and a current collection wiring diagram of the flexible direct new energy station.
In this embodiment, as shown in fig. 2, the establishing a simulation test model by using the single equipment model and the circuit diagram includes:
step S21, determining the short-circuit capacity of the equivalent power supply at the power grid side according to the acquired regional power grid short-circuit current of the flexible-direct new energy station;
and step S22, establishing the simulation test model according to the short circuit capacity, the electrical main wiring diagram, the current collection circuit diagram and the single equipment model.
According to the Thevenin theorem, the power grid of the external area of the flexible and direct new energy station can be equivalent in a voltage source and internal impedance mode. Specifically, an equivalent voltage source method is calculated by adopting short-circuit current. According to the topology and the electrical parameters of the external regional network, calculating the short-circuit current when a three-phase short circuit occurs at the high-voltage side bus outgoing line (namely a grid-connected point) of the flexible-direct new energy station, and converting the short-circuit current into short-circuit capacity. And further, establishing a simulation test model according to the obtained short-circuit capacity, an electric main wiring diagram, a current collection circuit diagram and a single equipment model.
As an embodiment of the present invention, as shown in fig. 3, issuing the test instruction value, and performing a power control performance test of the soft and direct new energy station by using the simulation test model to obtain a simulation test result includes:
step S31, issuing the test instruction value and determining the issuing time of the test instruction value;
step S32, changing a control target of the flexible direct new energy station power control system by using the test instruction value, or carrying out frequency disturbance and short circuit disturbance on the simulation test model to obtain a simulation test result; and the simulation test result comprises a grid-connected point voltage value and a grid-connected point current value.
And issuing the test instruction value, and acquiring the time and the instruction value of instruction issuing in the test process of each test item. Changing a control target of the power control system of the flexible and direct new energy station according to the test instruction value; or, carrying out frequency disturbance and short circuit disturbance on the simulation test model; or, carrying out any disturbance simulation of frequency disturbance and short circuit disturbance on the simulation test model, thereby obtaining a simulation test result.
Furthermore, voltage and current signals of the outlet end of the grid-connected point of the flexible and direct new energy station are collected to serve as test results.
In this embodiment, as shown in fig. 4, determining the power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value includes:
step S41, determining a test value according to the grid-connected point voltage value, the grid-connected point current value, the test instruction value and the issuing time thereof; the test values comprise a voltage value, reactive power and active power of the flexible direct new energy station;
step S42, determining a power control performance index of the gentle and direct new energy station according to the voltage value, the reactive power and the active power of the gentle and direct new energy station; and the power control performance index of the flexible direct new energy station comprises control precision and adjusting time.
And calculating values such as voltage, reactive power, active power and the like of the flexible and direct new energy station as test values according to the voltage value, the current value, the test instruction value and the issuing time of the grid-connected point. And analyzing various performance indexes of different test items, such as control precision, adjusting time and the like by using the data, thereby realizing the function of data analysis and processing.
In an embodiment of the present invention, as shown in fig. 5, a schematic diagram of a hardware-in-loop testing system structure of a hardware-in-loop testing method using a flexible direct new energy station in the embodiment of the present invention is shown. The tested object is a flexible direct new energy station power control system, the hardware-in-loop test specifically comprises AVC performance test, AGC performance test, primary frequency modulation performance test and other test items, and the development mode is laboratory semi-physical performance detection. The specific operation process of the system is shown in fig. 6.
All parameters of the single equipment model of various kinds of equipment in the flexible direct new energy station are obtained by fitting the actually measured data of the power control performance of the single equipment model, and the consistency of the external power control characteristics of the single equipment model and actual equipment is ensured. The parameters of the single equipment model include: the active power adjusting time coefficient, the active power overshoot coefficient, the active power adjusting time delay, the reactive power adjusting time coefficient, the reactive power overshoot coefficient and the reactive power adjusting time delay.
And S102, according to the Thevenin theorem, the external power grid of the flexible direct new energy station can adopt the equivalent of a voltage source and an internal impedance mode. The invention adopts a short-circuit current calculation equivalent voltage source method. According to the topology and the electrical parameters of an external network, calculating the short-circuit current when a three-phase short circuit occurs at the high-voltage side bus outgoing line (namely a grid-connected point) of the flexible and direct new energy station by using BPA software, as shown in a formula (1). Since it is more convenient for the RT-LAB hardware to represent the internal resistance of the voltage source in the form of short-circuit capacity in the loop modeling, the short-circuit current is converted from equation (2) to short-circuit capacity here.
In the formula: i ″)kFor short-circuit current, ZiiAnd calculating the equivalent impedance of the short-circuit bus for the BPA, wherein U is the reference voltage or the actual operating voltage of the high-voltage side bus of the flexible and straight new energy station.
In the formula: skIs the short circuit capacity.
After a simulation test model of the flexible and straight new energy station is built, according to the requirement of power control equipment of the flexible and straight new energy station to be tested, a corresponding communication protocol such as a Modbus protocol, a 104 protocol and the like is selected, a communication module is configured in the simulation test model, and the communication module is accessed into a hardware-in-loop test system.
And 103, integrating various performance test items, corresponding test methods and corresponding test procedures required by accessing the power control system of the new energy station of the flexible direct current power grid into the test monitoring execution module. The performance test items include: AVC performance test, AGC performance test, primary frequency modulation performance test and the like. After the item needing to be tested is selected, the module automatically gives out the test execution program of the corresponding item. The test steps and test methods for each test item are set in the module according to standard test specifications. Wherein:
(1) AVC Performance test items: including reactive mode performance testing and voltage mode performance testing. In the reactive mode performance test project, a reactive power instruction value is set in the test monitoring execution module, the instruction value is issued through a communication protocol between the test monitoring execution module and the power control system of the flexible and direct new energy station, the time of issuing the instruction is recorded, the unification of test time scales is guaranteed, and the analysis of each technical index during subsequent data processing is facilitated. During voltage mode performance testing, a voltage instruction value is set in the test monitoring execution module, the instruction value is issued through a communication protocol between the test monitoring execution module and the new energy station power control system, the time of issuing the instruction is recorded, the unification of test time scales is guaranteed, and analysis of each technical index during subsequent data processing is facilitated. Particularly, in some large-disturbance test working conditions, a disturbance module needs to be triggered in a test detection execution module, and disturbance triggering time is recorded, so that subsequent data processing and analysis are facilitated.
(2) AGC performance test items: including testing of the active power regulation capability. An active power instruction value is set in the test monitoring execution module, the instruction value is issued through a communication protocol between the test monitoring execution module and the power control system of the flexible and direct new energy station, the time of issuing the instruction is recorded, the unification of test time scales is guaranteed, and the analysis of each technical index during subsequent data processing is facilitated.
(3) Primary frequency modulation performance test items: the method comprises the test of the whole frequency modulation performance of the flexible and straight new energy station. The test monitoring execution module sets a value of frequency to be adjusted according to the content of primary frequency modulation test, the value signal is sent to the disturbance simulation module, a signal of frequency disturbance is generated through the disturbance simulation module, the signal is transmitted to the flexible direct new energy station power control system and the data acquisition and analysis processing system, the flexible direct new energy station power control system generates a corresponding power execution instruction according to the detected frequency variation and is used for adjusting the active power of the new energy power station, the data acquisition and analysis module simultaneously records the frequency signal sent by the disturbance simulation generation device and the power signal of the flexible direct new energy station grid-connected point, the unification of time scales of the instruction signal and the actual power signal is ensured, the power value of the response of the power control system is recorded, and the analysis of each technical index during subsequent data processing is facilitated.
The disturbance simulation module is mainly used for realizing frequency, short-circuit fault and other disturbances so as to test the corresponding control performance of the power control system. The frequency disturbance module acquires a grid-connected point voltage signal of the new energy power station to obtain a frequency value of the power grid side, and adjusts the frequency of a power supply of the power grid side according to an algorithm integrated by the module, so that smooth and high-precision control of the frequency can be realized. And the short circuit disturbance module generates the required short circuit fault at the corresponding position in the simulation model according to the test requirement. The disturbance simulation module generates corresponding disturbance by receiving the instruction signal sent by the test monitoring execution module, and finally the data acquisition and analysis module realizes the performance test and performance evaluation of the power control system of the flexible and direct new energy station.
And step 104, the data acquisition and analysis module can accurately acquire the time and the instruction value issued by the instruction in the test process of each test item through communication with the test monitoring execution module, and simultaneously calculates the values of the voltage, the reactive power, the active power and the like of the flexible and direct new energy power station by acquiring the voltage and current signals of the outlet terminal of the grid-connected point of the flexible and direct new energy power station, and analyzes various performance indexes of different test items, such as control precision, regulation time and the like, so that the function of data analysis and processing is realized. And meanwhile, the data analysis report template is solidified, and after data analysis is finished each time, the information of the tested flexible and straight new energy station and the information of the tested flexible and straight new energy station power control system are input in a data processing interface, so that a test analysis report can be generated, the detection efficiency is greatly improved, and the error rate of manual operation is reduced.
The hardware-in-loop test system for the control performance of the flexible direct new energy station integrates AVC performance test, AGC performance test and primary frequency modulation performance test, and can realize rapid test of different test items by selecting options to be tested. The disturbance simulation device generates a short-circuit fault or adjusts a frequency signal by receiving an instruction signal, so that the operation is more convenient and faster, and the data recording is more convenient. The data acquisition and analysis processing system can automatically analyze and process data and automatically produce test analysis reports, thereby greatly improving the detection efficiency and reducing the error rate of manual operation.
According to the method, based on the actual measurement data of the power control performance of various devices of the flexible and straight new energy field station, a hardware-in-loop simulation test model containing the detailed topology of the flexible and straight new energy field station is built, and the power control performance test of the flexible and straight new energy field station is realized by using disturbance simulation, so that the power control performance index of the flexible and straight new energy field station is obtained, the full-working-condition closed-loop test and analysis of the flexible and straight new energy field station are realized, the test efficiency is greatly improved, the error rate of manual operation is reduced, and the accuracy of the power control performance simulation test result of the flexible and straight new energy field station is ensured.
Fig. 7 is a schematic structural diagram of a hardware-in-the-loop testing apparatus of a power control system of a flexible direct new energy station according to an embodiment of the present invention, where the apparatus includes:
and the simulation test model module 10 is used for acquiring the actual measurement data and the line diagram of the flexible and direct new energy station, generating a single equipment model according to the actual measurement data, and establishing a simulation test model by using the single equipment model and the line diagram.
The method comprises the steps of obtaining actual measurement data and a circuit diagram of power control performance of various devices of the flexible direct new energy station, such as a wind turbine generator, a photovoltaic inverter, a dynamic reactive power compensation device and the like. And building a single equipment model with the control characteristics consistent with the measured data by using the measured data. Further, the wiring diagram includes an electric main wiring diagram and a power collecting wiring diagram.
Further, the parameters of the single equipment model include: the active power adjusting time coefficient, the active power overshoot coefficient, the active power adjusting time delay, the reactive power adjusting time coefficient, the reactive power overshoot coefficient and the reactive power adjusting time delay.
Further, according to a short-circuit current calculation result of a power grid in the flexible and direct new energy field station region, the short-circuit capacity of an equivalent power supply on the power grid side is determined, and then a single equipment model is used for building a simulation test model which is completely consistent with the electrical topology of the single equipment model by combining a main wiring diagram and a current collection circuit diagram of electrical equipment of the flexible and direct new energy field station to be tested.
And the simulation test result module 20 is configured to obtain a preset test instruction value, issue the test instruction value, and perform a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result.
The preset test instruction values comprise a reactive power instruction value, a voltage instruction value, an active power instruction value, a primary frequency modulation test reference value and the like. And issuing a preset test instruction value, recording the issuing time, and testing the power control performance of the flexible and direct new energy station by using the simulation test model.
Further, the power control performance test of the flexible direct new energy station comprises test items such as an AVC performance test, an AGC performance test and a primary frequency modulation performance test. Specifically, after the test instruction is issued, the control target of the power control system of the flexible and direct new energy station is changed, or short-circuit disturbance and/or frequency disturbance are/is generated at a corresponding position in a simulation test model by using a disturbance simulation mode. In addition, voltage and current signals of the outlet end of the grid-connected point of the flexible and direct new energy station are collected to serve as simulation test results.
And the performance index module 30 is configured to determine a power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value.
And calculating values such as voltage, reactive power, active power and the like of the flexible and direct new energy station according to the simulation test result, and taking the values as test values. And determining various power control performance indexes of different test items, such as control precision, adjusting time and the like by using the test value, the preset test instruction value and the issuing time thereof.
As an embodiment of the invention, the wiring diagram comprises an electrical main wiring diagram and a current collection wiring diagram of the flexible direct new energy station.
In this embodiment, as shown in fig. 8, the simulation test model module 10 includes:
the short-circuit capacity unit 11 is used for determining the short-circuit capacity of the equivalent power supply at the power grid side according to the acquired regional power grid short-circuit current of the flexible-direct new energy station;
and the test model unit 12 is used for establishing the simulation test model according to the short circuit capacity, the electric main wiring diagram, the current collection circuit diagram and the single equipment model.
As an embodiment of the present invention, as shown in fig. 9, the simulation test result module 20 includes:
an instruction value issuing unit 21 configured to issue the test instruction value and determine an issuing time of the test instruction value;
the test result unit 22 is configured to perform frequency disturbance and short circuit disturbance on the simulation test model by using the test instruction value to obtain a simulation test result; and the simulation test result comprises a grid-connected point voltage value and a grid-connected point current value.
In this embodiment, as shown in fig. 10, the performance index module 30 includes:
a test value unit 31, configured to determine a test value according to the grid-connected point voltage value, the grid-connected point current value, the test instruction value, and the issuing time thereof; the test values comprise a voltage value, reactive power and active power of the flexible direct new energy station;
a performance index unit 32, configured to determine a power control performance index of the soft and straight new energy station according to the voltage value, the reactive power, and the active power of the soft and straight new energy station; and the power control performance index of the flexible direct new energy station comprises control precision and adjusting time.
Based on the same application concept as the hardware-in-loop test method of the power control system of the flexible direct new energy station, the invention also provides a hardware-in-loop test device of the power control system of the flexible direct new energy station. Because the principle of solving the problems of the hardware-in-loop test device of the power control system of the flexible and straight new energy field station is similar to the hardware-in-loop test method of the power control system of the flexible and straight new energy field station, the implementation of the hardware-in-loop test device of the power control system of the flexible and straight new energy field station can refer to the implementation of the hardware-in-loop test method of the power control system of the flexible and straight new energy field station, and repeated parts are not repeated.
According to the method, based on the actual measurement data of the power control performance of various devices of the flexible and straight new energy field station, a hardware-in-loop simulation test model containing the detailed topology of the flexible and straight new energy field station is built, and the power control performance test of the flexible and straight new energy field station is realized by using disturbance simulation, so that the power control performance index of the flexible and straight new energy field station is obtained, the full-working-condition closed-loop test and analysis of the flexible and straight new energy field station are realized, the test efficiency is greatly improved, the error rate of manual operation is reduced, and the accuracy of the power control performance simulation test result of the flexible and straight new energy field station is ensured.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method when executing the program.
The present invention also provides a computer-readable storage medium storing a computer program for executing the above method.
As shown in fig. 11, the electronic device 600 may further include: communication module 110, input unit 120, audio processing unit 130, display 160, power supply 170. It is noted that the electronic device 600 does not necessarily include all of the components shown in FIG. 11; furthermore, the electronic device 600 may also comprise components not shown in fig. 11, which may be referred to in the prior art.
As shown in fig. 11, the central processor 100, sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device, the central processor 100 receiving input and controlling the operation of the various components of the electronic device 600.
The memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable media, a volatile memory, a non-volatile memory, or other suitable device. The information relating to the failure may be stored, and a program for executing the information may be stored. And the central processing unit 100 may execute the program stored in the memory 140 to realize information storage or processing, etc.
The input unit 120 provides input to the cpu 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used to display an object to be displayed, such as an image or a character. The display may be, for example, an LCD display, but is not limited thereto.
The memory 140 may be a solid state memory such as Read Only Memory (ROM), Random Access Memory (RAM), a SIM card, or the like. There may also be a memory that holds information even when power is off, can be selectively erased, and is provided with more data, an example of which is sometimes called an EPROM or the like. The memory 140 may also be some other type of device. Memory 140 includes buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application/function storage section 142, and the application/function storage section 142 is used to store application programs and function programs or a flow for executing the operation of the electronic device 600 by the central processing unit 100.
The memory 140 may also include a data store 143, the data store 143 for storing data, such as contacts, digital data, pictures, sounds, and/or any other data used by the electronic device. The driver storage portion 144 of the memory 140 may include various drivers of the electronic device for communication functions and/or for performing other functions of the electronic device (e.g., messaging application, address book application, etc.).
The communication module 110 is a transmitter/receiver 110 that transmits and receives signals via an antenna 111. The communication module (transmitter/receiver) 110 is coupled to the central processor 100 to provide an input signal and receive an output signal, which may be the same as in the case of a conventional mobile communication terminal.
Based on different communication technologies, a plurality of communication modules 110, such as a cellular network module, a bluetooth module, and/or a wireless local area network module, may be provided in the same electronic device. The communication module (transmitter/receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide audio output via the speaker 131 and receive audio input from the microphone 132 to implement general telecommunications functions. Audio processor 130 may include any suitable buffers, decoders, amplifiers and so forth. In addition, an audio processor 130 is also coupled to the central processor 100, so that recording on the local can be enabled through a microphone 132, and so that sound stored on the local can be played through a speaker 131.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A hardware-in-loop test method for a power control system of a flexible direct new energy station is characterized by comprising the following steps:
acquiring actual measurement data and a circuit diagram of various types of equipment of the flexible and direct new energy station, generating a single equipment model according to the actual measurement data, and establishing a simulation test model by using the single equipment model and the circuit diagram;
acquiring a preset test instruction value, issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result;
and determining the power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value.
2. The method according to claim 1, wherein the wiring diagram comprises an electrical main wiring diagram and a current collection wiring diagram of the tender straight new energy station.
3. The method of claim 2, wherein the establishing a simulation test model using the single equipment model and the wiring diagram comprises:
determining the short-circuit capacity of an equivalent power supply at the power grid side according to the acquired regional power grid short-circuit current of the flexible-direct new energy station;
and establishing the simulation test model according to the short circuit capacity, the electric main wiring diagram, the current collection circuit diagram and the single equipment model.
4. The method according to claim 1, wherein the issuing of the test instruction value and the performing of the power control performance test of the soft and straight new energy station by using the simulation test model to obtain the simulation test result comprise:
issuing the test instruction value, and determining the issuing time of the test instruction value;
changing a control target of a flexible direct new energy field power control system by using the test instruction value, or performing frequency disturbance and short circuit disturbance on the simulation test model to obtain a simulation test result; and the simulation test result comprises a grid-connected point voltage value and a grid-connected point current value.
5. The method according to claim 4, wherein the determining the power control performance index of the FLC new energy station according to the simulation test result and a preset test command value comprises:
determining a test value according to the grid-connected point voltage value, the grid-connected point current value, the test instruction value and the issuing moment thereof; the test values comprise a voltage value, reactive power and active power of the flexible direct new energy station;
determining a power control performance index of the flexible and direct new energy station according to the voltage value, the reactive power and the active power of the flexible and direct new energy station; and the power control performance index of the flexible direct new energy station comprises control precision and adjusting time.
6. A hardware-in-loop test device of a power control system of a flexible direct new energy station is characterized by comprising:
the simulation test model module is used for acquiring actual measurement data and a circuit diagram of various devices of the flexible and direct new energy station, generating a single device model according to the actual measurement data, and establishing a simulation test model by using the single device model and the circuit diagram;
the simulation test result module is used for acquiring a preset test instruction value, issuing the test instruction value, and performing a power control performance test of the flexible and direct new energy station by using the simulation test model to obtain a simulation test result;
and the performance index module is used for determining the power control performance index of the flexible and direct new energy station according to the simulation test result and a preset test instruction value.
7. The apparatus of claim 6, wherein the wiring diagram comprises an electrical main wiring diagram and a current collection wiring diagram of the tender straight new energy station.
8. The apparatus of claim 7, wherein the simulation test model module comprises:
the short-circuit capacity unit is used for determining the short-circuit capacity of the equivalent power supply at the power grid side according to the acquired regional power grid short-circuit current of the flexible-direct new energy station;
and the test model unit is used for establishing the simulation test model according to the short circuit capacity, the electric main wiring diagram, the current collection circuit diagram and the single equipment model.
9. The apparatus of claim 6, wherein the simulation test results module comprises:
the instruction value issuing unit is used for issuing the test instruction value and determining the issuing time of the test instruction value;
the test result unit is used for changing a control target of the flexible direct new energy field power control system or carrying out frequency disturbance and short circuit disturbance on the simulation test model by using the test instruction value to obtain a simulation test result; and the simulation test result comprises a grid-connected point voltage value and a grid-connected point current value.
10. The apparatus of claim 9, wherein the performance indicator module comprises:
the test value unit is used for determining a test value according to the grid-connected point voltage value, the grid-connected point current value, the test instruction value and the issuing moment thereof; the test values comprise a voltage value, reactive power and active power of the flexible direct new energy station;
the performance index unit is used for determining a power control performance index of the flexible direct new energy station according to the voltage value, the reactive power and the active power of the flexible direct new energy station; and the power control performance index of the flexible direct new energy station comprises control precision and adjusting time.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 5 when executing the computer program.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 5.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510131A (en) * | 2011-11-03 | 2012-06-20 | 四川电力科学研究院 | Method and device for testing overall performance of intelligent transformer substation |
| CN104330980A (en) * | 2014-11-03 | 2015-02-04 | 中国科学院广州能源研究所 | RT-LAB based microgrid simulation testing system |
| CN105844542A (en) * | 2016-03-30 | 2016-08-10 | 东北石油大学 | Power grid single large disturbance online detection method based on WAMS |
| CN105989206A (en) * | 2015-02-15 | 2016-10-05 | 国家电网公司 | Wind power plant/photovoltaic power station model verification method based on quick response generator |
| CN106655159A (en) * | 2016-10-27 | 2017-05-10 | 中国电力科学研究院 | New energy power station primary frequency modulation capability testing system and testing method thereof |
| CN108957160A (en) * | 2017-05-19 | 2018-12-07 | 国网江苏省电力公司常州供电公司 | Active power distribution network feed line automatization system test method |
| US20190067939A1 (en) * | 2016-05-18 | 2019-02-28 | China Electric Power Research Institute Company Limited | Multi-time-scale digital/analog hybrid simulation system and method for power distribution network and storage medium |
| CN110245428A (en) * | 2019-06-17 | 2019-09-17 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Modular multilevel dynamic model platform and test method |
| CN111459048A (en) * | 2020-03-09 | 2020-07-28 | 中国电力科学研究院有限公司 | SVG control hardware-in-loop simulation platform and simulation method |
| CN112015162A (en) * | 2020-08-03 | 2020-12-01 | 国网山东省电力公司电力科学研究院 | Hardware-in-loop test system and method for reactive voltage control system of new energy station |
| CN112345959A (en) * | 2019-08-08 | 2021-02-09 | 中国电力科学研究院有限公司 | Characteristic test system for multi-machine parallel operation of virtual synchronous generators |
| CN112395743A (en) * | 2020-10-29 | 2021-02-23 | 中国电力科学研究院有限公司 | Grid-connected performance consistency evaluation device and method for photovoltaic inverter |
| CN112799373A (en) * | 2020-12-09 | 2021-05-14 | 中国电力科学研究院有限公司 | New energy power station power control system test platform and method |
-
2021
- 2021-11-23 CN CN202111395251.0A patent/CN114115191A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510131A (en) * | 2011-11-03 | 2012-06-20 | 四川电力科学研究院 | Method and device for testing overall performance of intelligent transformer substation |
| CN104330980A (en) * | 2014-11-03 | 2015-02-04 | 中国科学院广州能源研究所 | RT-LAB based microgrid simulation testing system |
| CN105989206A (en) * | 2015-02-15 | 2016-10-05 | 国家电网公司 | Wind power plant/photovoltaic power station model verification method based on quick response generator |
| CN105844542A (en) * | 2016-03-30 | 2016-08-10 | 东北石油大学 | Power grid single large disturbance online detection method based on WAMS |
| US20190067939A1 (en) * | 2016-05-18 | 2019-02-28 | China Electric Power Research Institute Company Limited | Multi-time-scale digital/analog hybrid simulation system and method for power distribution network and storage medium |
| CN106655159A (en) * | 2016-10-27 | 2017-05-10 | 中国电力科学研究院 | New energy power station primary frequency modulation capability testing system and testing method thereof |
| CN108957160A (en) * | 2017-05-19 | 2018-12-07 | 国网江苏省电力公司常州供电公司 | Active power distribution network feed line automatization system test method |
| CN110245428A (en) * | 2019-06-17 | 2019-09-17 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Modular multilevel dynamic model platform and test method |
| CN112345959A (en) * | 2019-08-08 | 2021-02-09 | 中国电力科学研究院有限公司 | Characteristic test system for multi-machine parallel operation of virtual synchronous generators |
| CN111459048A (en) * | 2020-03-09 | 2020-07-28 | 中国电力科学研究院有限公司 | SVG control hardware-in-loop simulation platform and simulation method |
| CN112015162A (en) * | 2020-08-03 | 2020-12-01 | 国网山东省电力公司电力科学研究院 | Hardware-in-loop test system and method for reactive voltage control system of new energy station |
| CN112395743A (en) * | 2020-10-29 | 2021-02-23 | 中国电力科学研究院有限公司 | Grid-connected performance consistency evaluation device and method for photovoltaic inverter |
| CN112799373A (en) * | 2020-12-09 | 2021-05-14 | 中国电力科学研究院有限公司 | New energy power station power control system test platform and method |
Non-Patent Citations (2)
| Title |
|---|
| 刘燕等: "《供配电技术》", 31 March 2007, 西安电子科技大学出版社, pages: 57 * |
| 梁朔等: "一种基于RTDS的数字化线路保护逻辑功能测试方法", 《广西电力》, no. 3, 30 June 2017 (2017-06-30), pages 6 - 9 * |
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