CN107102567B - Simulation test system and test method - Google Patents
Simulation test system and test method Download PDFInfo
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- CN107102567B CN107102567B CN201710440089.7A CN201710440089A CN107102567B CN 107102567 B CN107102567 B CN 107102567B CN 201710440089 A CN201710440089 A CN 201710440089A CN 107102567 B CN107102567 B CN 107102567B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
Abstract
The invention provides a simulation test system and a test method, which can completely test the performance of a flexible direct current control protection device and improve the test effect. The simulation test system comprises: the device comprises a real-time simulator, a power module characteristic simulation device and a flexible direct current control protection device; the real-time simulator is connected with the power module characteristic simulation device through Aurora communication; the power module characteristic simulation device is connected with the flexible direct current control protection device in an optical fiber communication mode; the real-time simulator is used for simulating the working states of an alternating current/direct current power grid and the flexible direct current power transmission device, and the power module characteristic simulation device is used for simulating the working characteristics of a power module in the flexible direct current power transmission device. The invention is applied to the test of the flexible direct current control protection device.
Description
Technical Field
The invention relates to the field of simulation test, in particular to a simulation test system and a test method.
Background
At present, the flexible direct current transmission technology can realize independent control of active power and reactive power, does not need power grid phase-change voltage support, and can supply power to a passive system. The method adopts a fully-controlled device, phase commutation failure can not occur in transient processes such as instantaneous voltage drop and the like, when the tide is reversed, the direction of direct current is reversed, the polarity of current and voltage is unchanged, communication is not needed between converters, and a parallel multi-terminal direct current transmission system which can conveniently control the tide and has higher reliability is favorably formed. Due to the particularity of the power grid, once a fault occurs, great loss is caused, so that the corresponding control protection device needs to be configured for the flexible direct current transmission device to timely control and repair the possible fault of the flexible direct current transmission device, and huge loss caused by the fault of the flexible direct current transmission device is avoided. For the flexible direct current control protection device, a function Test and a Dynamic Performance Test (FPT/DPT) are important links for linking design, manufacture, verification in a control and protection strategy factory, engineering field debugging and operation of the control and protection device, and are also important means for verifying and ensuring complete, stable and reliable functions of the control and protection system.
Further, because of the particularity of the power grid, a newly developed or newly delivered flexible dc control protection device cannot be directly connected with a working flexible dc transmission device to detect whether the device is qualified, the existing FPT/DPT test is generally performed based on a real-time simulation system. As shown in fig. 1, the real-time simulator 1 is configured to simulate an operating state of the flexible dc transmission device, and transmit operating state information to the flexible dc control protection device 2 through a high-speed serial protocol (Aurora communication) and an I/O interface, thereby implementing a closed-loop simulation test on the flexible dc control protection device 2. In the existing test system, due to the limitation of an Aurora communication interface of a real-time simulator, converter valve control protection equipment in a flexible direct current control protection device 2 must be simplified, and some running information generated by a power module in actual flexible direct current transmission equipment cannot be completely simulated and transmitted, so that the tested flexible direct current control protection device is inconsistent with a device actually used by engineering. According to actual data statistics, after the field debugging stage is started, about 70% of design defects are caused by the performance of the converter valve control protection equipment which is not fully tested by the FPT/DPT test and the control protection performance of the power module. Therefore, the existing FPT/DPT test has disadvantages.
Disclosure of Invention
The embodiment of the invention provides a simulation test system which can completely test the performance of a flexible direct current control protection device and improve the test effect.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a simulation test system is provided, which includes: the device comprises a real-time simulator, a power module characteristic simulation device and a flexible direct current control protection device;
the real-time simulator is connected with the power module characteristic simulation device in an Aurora communication mode; the power module characteristic simulation device is connected with the flexible direct current control protection device in an optical fiber communication mode;
the real-time simulator is used for simulating the working states of the AC/DC power grid and the flexible DC power transmission device according to the simulation parameters and sending the relevant parameters of the simulated working states of the flexible DC power transmission device to the power module characteristic simulation device;
the power module characteristic simulation device is used for simulating the working characteristics of a power module in the flexible direct current transmission device according to the received related parameters of the working state of the simulated flexible direct current transmission device and sending the related parameters of the working state of the simulated flexible direct current transmission device and the related parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device;
the flexible direct current control protection device is used for generating a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current transmission device and the relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, and sending the first control parameter to the power module characteristic simulation device;
the power module characteristic simulation device is also used for simulating the updated working characteristic of the power module in the flexible direct current power transmission device according to the received first control parameter, and sending the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current power transmission device to the real-time simulator;
the real-time simulator is further used for simulating the updated working state of the flexible direct current power transmission device according to the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current power transmission device and generating the corresponding relevant parameter.
Optionally, because a tester is required to set simulation parameters and evaluate test results, the system further comprises a human-computer interaction device; the human-computer interaction device is connected with the real-time simulator and used for generating simulation parameters according to the operation of a user and sending the simulation parameters to the real-time simulator; the human-computer interaction device is also used for displaying relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current power transmission device and relevant parameters of the updated working state of the simulated flexible direct current power transmission device.
Optionally, in order to ensure that data sent or received between the power module characteristic simulation device and the flexible dc control protection device do not affect each other, the optical fiber in the optical fiber communication mode includes an input optical fiber and an output optical fiber.
Optionally, to ensure that important parameters in data generated by simulation of the real-time simulator and parameters related to the power module in the flexible direct-current power transmission device are transmitted without being affected, the remaining secondary parameters need to be transmitted in other manners, so that the real-time simulator is further connected with the flexible direct-current control protection device through the input/output interface; the real-time simulator is used for directly sending low-speed analog quantity or digital quantity in relevant parameters of the working state of the simulated flexible direct-current power transmission device to the flexible direct-current control protection device; the flexible direct current control protection device is used for generating a second control parameter according to the low-speed analog quantity or the digital quantity and sending the second control parameter to the real-time simulator; and the real-time simulator simulates the working state of the flexible direct-current power transmission device updated according to the second control parameter and generates corresponding related parameters. The low-speed analog quantity or the digital quantity represents a secondary parameter in the relevant parameters of the working state of the flexible direct current transmission device simulated by the real-time simulator and a parameter irrelevant to a power module in the flexible direct current transmission device.
Illustratively, the flexible dc control protection device includes: the control and protection device comprises a converter valve control and protection device for engineering, a converter station control and protection device for engineering and a centralized control device; the engineering converter valve control protection equipment is connected with the engineering converter control protection equipment, the engineering converter control protection equipment is connected with the engineering converter station control protection equipment, and the engineering converter station control protection equipment is connected with the centralized control equipment; because the low-speed analog quantity or digital quantity in the relevant parameters of the working state of the flexible direct current transmission device simulated by the real-time simulator is a secondary parameter, the parameters are transmitted to the flexible direct current control protection device by connecting the converter control protection device for engineering and the converter station control protection device for engineering through the real-time simulator.
Optionally, the simulating the operating characteristics of the power module in the flexible dc power transmission device by the power module characteristic simulating device at least includes: capacitance voltage dispersion characteristic, capacitance overvoltage and undervoltage, optical fiber communication fault, misoperation and refusal, board card fault and power supply fault.
In a second aspect, a testing method based on the simulation testing system provided in the first aspect is provided, which includes:
the real-time simulator simulates the working state of the AC/DC power grid flexible DC power transmission device according to the simulation parameters; sending the relevant parameters of the simulated working state of the flexible direct current power transmission device to the power module characteristic simulation device;
the power module characteristic simulation device simulates the working characteristics of a power module in the flexible direct current transmission device according to the relevant parameters of the working state of the simulated flexible direct current transmission device, which are sent by the real-time simulator; sending the relevant parameters of the working state of the simulated flexible direct current transmission device and the relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device;
the flexible direct current control protection device generates a first control parameter according to the relevant parameter of the working state of the simulated flexible direct current transmission device and the relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, which are sent by the power module characteristic simulation device; sending the first control parameter to a power module characteristic simulation device;
the power module characteristic simulation device simulates the updated working characteristics of the power module in the flexible direct current transmission device according to the first control parameter sent by the flexible direct current control protection device; sending the first control parameter and the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device to a real-time simulator;
and the real-time simulator simulates the updated working state of the flexible direct current transmission device according to the first control parameter sent by the power module characteristic simulation device and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current transmission device and generates a corresponding relevant parameter.
After a test flow is finished, a tester can judge whether the flexible direct-current control protection device can play a role in controlling and protecting the flexible direct-current power transmission device according to preset simulation parameters and finally obtained relevant parameters of the real-time simulator and the power module characteristic simulation device.
Optionally, before the simulating the working state of the ac/dc power grid flexible dc power transmission device by the real-time simulator according to the simulation parameters, the method further includes: the real-time simulator receives simulation parameters sent by the human-computer interaction device; generating simulation parameters by the man-machine interaction device according to user operation;
the method for simulating the updated working state of the flexible direct current power transmission device by the real-time simulator according to the first control parameter sent by the power module characteristic simulation device and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current power transmission device and generating the corresponding relevant parameter further comprises the following steps: the real-time simulator sends the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device and the relevant parameters of the updated working state of the simulated flexible direct current transmission device to the human-computer interaction device; and the human-computer interaction device receives and displays relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current power transmission device and relevant parameters of the updated working state of the simulated flexible direct current power transmission device, which are sent by the real-time simulator.
Optionally, the testing method further includes: the real-time simulator sends low-speed analog quantity or digital quantity in relevant parameters of the working state of the simulated flexible direct current transmission device to the flexible direct current control protection device; the flexible direct current control protection device generates a second control parameter according to a low-speed analog quantity or a digital quantity in the relevant parameters of the working state of the simulated flexible direct current power transmission device, which are sent by the real-time simulator; sending the second control parameter to the real-time simulator; and the real-time simulator simulates the working state of the flexible direct-current power transmission device after being updated according to the second control parameter sent by the flexible direct-current control protection device and generates corresponding related parameters.
Optionally, the operating characteristics of the power module in the simulated flexible dc power transmission apparatus at least include:
capacitance voltage dispersion characteristic, capacitance overvoltage and undervoltage, optical fiber communication fault, misoperation and refusal, board card fault and power supply fault.
The simulation test system and the test method provided by the embodiment of the invention have the advantages that the system comprises: the device comprises a real-time simulator, a power module characteristic simulation device and a flexible direct current control protection device; the real-time simulator is connected with the power module characteristic simulation device in an Aurora communication mode; the power module characteristic simulation device is connected with the flexible direct current control protection device in an optical fiber communication mode; the real-time simulator is used for simulating the working states of the AC/DC power grid and the flexible DC power transmission device according to the simulation parameters and sending the relevant parameters of the simulated working states of the flexible DC power transmission device to the power module characteristic simulation device; the power module characteristic simulation device is used for simulating the working characteristics of a power module in the flexible direct current transmission device according to the received related parameters of the working state of the simulated flexible direct current transmission device and sending the related parameters of the working state of the simulated flexible direct current transmission device and the related parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device; the flexible direct current control protection device is used for generating a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current transmission device and the relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, and sending the first control parameter to the power module characteristic simulation device; the power module characteristic simulation device is also used for simulating the updated working characteristic of the power module in the flexible direct current power transmission device according to the received first control parameter, and sending the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current power transmission device to the real-time simulator; the real-time simulator is further used for simulating the updated working state of the flexible direct current power transmission device according to the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current power transmission device and generating the corresponding relevant parameter. Therefore, when the flexible direct current control protection device is tested, the real-time simulator simulates the working states of the alternating current/direct current power grid and the flexible direct current power transmission device according to simulation parameters and sends related parameters of the simulated working states of the flexible direct current power transmission device to the power module characteristic simulation device; the power module characteristic simulation device simulates the working characteristics of a power module in the flexible direct current transmission device according to the received relevant parameters of the working state of the simulated flexible direct current transmission device, and sends the relevant parameters of the working state of the simulated flexible direct current transmission device and the relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device; the flexible direct current control protection device generates a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current transmission device and the received relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, and sends the first control parameter to the power module characteristic simulation device; the power module characteristic simulation device also simulates the updated working characteristic of the power module in the flexible direct current transmission device according to the received first control parameter, and sends the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current transmission device to the real-time simulator; and the real-time simulator simulates the updated working state of the flexible direct current transmission device according to the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current transmission device and generates a corresponding relevant parameter. In the scheme provided by the embodiment of the invention, the working parameters of the working state of the flexible direct-current power transmission device generated by the simulation of the real-time simulator are transmitted to the flexible direct-current control protection device in the mode of optical fiber communication after passing through the power module, and all data can be completely transmitted to the flexible direct-current control protection device in the mode of optical fiber communication, so that the flexible direct-current control protection device can input accurate control parameters according to the complete parameters, thereby achieving the purpose of completing the test of the performance of the flexible direct-current control protection device, and avoiding the defect that the flexible direct-current control protection device can be tested only after being simplified due to incomplete transmitted data caused by the limitation of an Aurora communication interface of the real-time simulator in the prior art; furthermore, because the power module characteristic simulation device exists in the scheme provided by the embodiment of the invention, the working characteristic of the power module in the flexible direct current transmission device can be completely simulated, and the defect that the real-time simulator in the prior art cannot completely simulate the working characteristic of the power module in the flexible direct current transmission device is overcome, so that the control protection capability of the flexible direct current control protection device on the power module in the flexible direct current transmission device can be tested, the function of the flexible direct current control protection device can be completely tested by the scheme provided by the embodiment of the invention, and the test effect is improved.
Drawings
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 or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a simulation test system provided in the prior art;
FIG. 2 is a schematic structural diagram of a simulation test system according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a testing method of a flexible dc control protection device according to an embodiment of the present invention.
Detailed Description
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.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
It should be noted that, in the embodiments of the present invention, "of", "corresponding" and "corresponding" may be sometimes used in combination, and it should be noted that, when the difference is not emphasized, the intended meaning is consistent.
In the prior art, the testing of the flexible direct current control protection device is not enough in the aspects of the quantity of Aurora communication interfaces of a real-time simulator for simulating the flexible direct current transmission device and data transmission, and parameters for simulating the working state of the flexible direct current transmission device cannot be completely transmitted to the flexible direct current control protection device, so that the flexible direct current control protection device can be tested after partial simplification, but the detection result is not accurate enough, the unqualified flexible direct current control protection device is easy to leave a factory to work, and the power grid applying the flexible direct current transmission technology can generate great loss.
In order to solve the above technical problem, referring to fig. 2, an embodiment of the present invention provides a simulation test system, which includes: the device comprises a real-time simulator 1, a power module characteristic simulation device 3 and a flexible direct current control protection device 2;
the real-time simulator 1 is connected with a power module characteristic simulation device 3 in an Aurora communication mode; the power module characteristic simulation device 3 is connected with the flexible direct current control protection device 2 in an optical fiber communication mode;
the real-time simulator 1 is used for simulating the working states of the AC/DC power grid and the flexible DC power transmission device according to simulation parameters and sending related parameters of the simulated working states of the flexible DC power transmission device to the power module characteristic simulation device 3;
the power module characteristic simulation device 3 is used for simulating the operating characteristics of a power module in the flexible direct current transmission device according to the received relevant parameters of the operating state of the simulated flexible direct current transmission device, and sending the relevant parameters of the operating state of the simulated flexible direct current transmission device and the relevant parameters of the operating characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device 2;
the flexible direct current control protection device 2 is used for generating a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current transmission device and the relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, and sending the first control parameter to the power module characteristic simulation device 3;
the power module characteristic simulation device 3 is further configured to simulate the updated operating characteristics of the power module in the flexible direct current power transmission device according to the received first control parameter, and send the first control parameter and the relevant parameters of the updated operating characteristics of the power module in the simulated flexible direct current power transmission device to the real-time simulator 1;
the real-time simulator 1 is further configured to simulate an updated operating state of the flexible direct current power transmission device according to the first control parameter and the simulated relevant parameter of the updated operating characteristic of the power module in the flexible direct current power transmission device and generate a corresponding relevant parameter.
The above embodiment provides the simulation test system, because the system includes: the device comprises a real-time simulator, a power module characteristic simulation device and a flexible direct current control protection device; the real-time simulator is connected with the power module characteristic simulation device in an Aurora communication mode; the power module characteristic simulation device is connected with the flexible direct current control protection device in an optical fiber communication mode; the flexible direct current control protection device is connected with the real-time simulator; the real-time simulator is used for simulating the working states of an alternating current/direct current power grid and the flexible direct current power transmission device, and the power module characteristic simulation device is used for simulating the working characteristics of a power module in the flexible direct current power transmission device. Therefore, when the flexible direct current control protection device is tested, the real-time simulator simulates the working states of the alternating current/direct current power grid and the flexible direct current power transmission device according to simulation parameters and sends related parameters of the simulated working states of the flexible direct current power transmission device to the power module characteristic simulation device; the power module characteristic simulation device simulates the working characteristics of a power module in the flexible direct current transmission device according to the received relevant parameters of the working state of the simulated flexible direct current transmission device, and sends the relevant parameters of the working state of the simulated flexible direct current transmission device and the relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device; the flexible direct current control protection device generates a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current transmission device and the received relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, and sends the first control parameter to the power module characteristic simulation device; the power module characteristic simulation device also simulates the updated working characteristic of the power module in the flexible direct current transmission device according to the received first control parameter, and sends the first control parameter and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current transmission device to the real-time simulator; and the real-time simulator simulates the updated working state of the flexible direct current transmission device according to the first control parameter and the simulated relevant parameter of the updated working characteristic of the power module in the flexible direct current transmission device and generates a corresponding relevant parameter. In the scheme provided by the embodiment of the invention, the working parameters of the working state of the flexible direct-current power transmission device generated by the simulation of the real-time simulator are transmitted to the flexible direct-current control protection device in the mode of optical fiber communication after passing through the power module, and all data can be completely transmitted to the flexible direct-current control protection device in the mode of optical fiber communication, so that the flexible direct-current control protection device can input accurate control parameters according to the complete parameters, thereby achieving the purpose of completing the test of the performance of the flexible direct-current control protection device, and avoiding the defect that the flexible direct-current control protection device can be tested only after being simplified due to incomplete transmitted data caused by the limitation of an Aurora communication interface of the real-time simulator in the prior art; furthermore, because the power module characteristic simulation device exists in the scheme provided by the embodiment of the invention, the working characteristic of the power module in the flexible direct current transmission device can be completely simulated, and the defect that the real-time simulator in the prior art cannot completely simulate the working characteristic of the power module in the flexible direct current transmission device is overcome, so that the control protection capability of the flexible direct current control protection device on the power module in the flexible direct current transmission device can be tested, the function of the flexible direct current control protection device can be completely tested by the scheme provided by the embodiment of the invention, and the test effect is improved.
Optionally, as shown in fig. 2, because a tester is required to set simulation parameters and evaluate test results, the system further includes a human-computer interaction device 0; the human-computer interaction device 0 is connected with the real-time simulator 1 and used for generating simulation parameters according to the operation of a user and sending the simulation parameters to the real-time simulator 1; the human-computer interaction device 0 is further configured to display relevant parameters of the updated operating characteristics of the power module in the simulated flexible direct current power transmission device and relevant parameters of the updated operating state of the simulated flexible direct current power transmission device; the tester can obtain whether the tested flexible direct current control protection device is qualified or not by comparing the final related parameters with the initially set simulation parameters.
Optionally, in order to ensure that data sent or received between the power module characteristic simulation device and the flexible dc control protection device do not affect each other, the optical fiber in the optical fiber communication mode includes an input optical fiber and an output optical fiber.
Optionally, as shown in fig. 2, to ensure that important parameters in data generated by simulation of the real-time simulator and parameters related to the power module in the flexible direct current transmission device are transmitted without being affected, the remaining secondary parameters need to be transmitted by other means, so the real-time simulator 1 and the flexible direct current control protection device 2 are further connected through an input/output (I/O) interface; the real-time simulator 1 is used for directly sending low-speed analog quantity or digital quantity in relevant parameters of the working state of the simulated flexible direct-current power transmission device to the flexible direct-current control protection device 2; the flexible direct current control protection device 2 is used for generating a second control parameter according to the low-speed analog quantity or the digital quantity and sending the second control parameter to the real-time simulator 1; the real-time simulator 1 simulates the working state of the flexible direct-current power transmission device updated according to the second control parameter and generates a corresponding relevant parameter. The low-speed analog quantity or the digital quantity represents a secondary parameter in the relevant parameters of the working state of the flexible direct current transmission device simulated by the real-time simulator and a parameter which is irrelevant to a power module in the flexible direct current transmission device. For example: switching signals of circuit breakers in flexible direct current transmission devices, and the like.
Illustratively, referring to fig. 2, the flexible dc control protection device 2 includes: the method comprises the following steps that (1) engineering converter valve control protection equipment 21, engineering converter control protection equipment 22, engineering converter station control protection equipment 23 and centralized control equipment 24 are adopted; the engineering converter valve control protection equipment 21 is connected with engineering converter control protection equipment 22, the engineering converter control protection equipment 22 is connected with engineering converter station control protection equipment 23, and the engineering converter station control protection equipment 23 is connected with centralized control equipment 24; since the low-speed analog quantity or digital quantity of the parameters related to the operating condition of the flexible direct current transmission device simulated by the real-time simulator 1 is a minor parameter, these parameters are sent to the flexible direct current control protection device 2 by connecting the converter control protection device 22 for engineering and the converter station control protection device 23 for engineering through the real-time simulator 1.
Optionally, because the control protection function of the flexible dc control protection device on the flexible dc power transmission device needs to be detected, and the condition that various faults occur in each module in the flexible dc power transmission device needs to be simulated, the power module characteristic simulation apparatus simulates the operating characteristics of the power module in the flexible dc power transmission device and at least includes: capacitance voltage dispersion characteristics, capacitance overvoltage and undervoltage, optical fiber communication faults, misoperation and refusal, board card faults and power supply faults.
An embodiment of the present invention further provides a testing method for a simulation testing system based on the foregoing embodiment, and as shown in fig. 3, the method includes:
301. the real-time simulator receives simulation parameters sent by the human-computer interaction device; and the man-machine interaction device generates simulation parameters according to user operation.
302. The real-time simulator simulates the working state of the AC/DC power grid flexible DC power transmission device according to the simulation parameters; and sending the relevant parameters of the simulated working state of the flexible direct current transmission device to the power module characteristic simulation device.
303. The power module characteristic simulation device simulates the working characteristics of a power module in the flexible direct current transmission device according to the relevant parameters of the working state of the simulated flexible direct current transmission device, which are sent by the real-time simulator; and sending the relevant parameters of the simulated working state of the flexible direct current transmission device and the relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device.
Optionally, the operating characteristics of the power module in the flexible direct current power transmission device simulated by the power module characteristic simulation device at least include: capacitance voltage dispersion characteristic, capacitance overvoltage and undervoltage, optical fiber communication fault, misoperation and refusal, board card fault and power supply fault.
304. The flexible direct current control protection device generates a first control parameter according to the relevant parameter of the working state of the simulated flexible direct current transmission device and the relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, which are sent by the power module characteristic simulation device; and sending the first control parameter to the power module characteristic simulation device.
305. The power module characteristic simulation device simulates the updated working characteristics of the power module in the flexible direct current transmission device according to the first control parameter sent by the flexible direct current control protection device; and sending the first control parameter and the updated relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the real-time simulator.
306. And the real-time simulator simulates the updated working state of the flexible direct current transmission device according to the first control parameter sent by the power module characteristic simulation device and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current transmission device and generates a corresponding relevant parameter.
307. The real-time simulator sends relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device and relevant parameters of the updated working state of the simulated flexible direct current transmission device to the human-computer interaction device; and the human-computer interaction device receives and displays relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current power transmission device and relevant parameters of the updated working state of the simulated flexible direct current power transmission device, which are sent by the real-time simulator.
Optionally, the testing method further includes: the real-time simulator sends low-speed analog quantity or digital quantity in relevant parameters of the working state of the simulated flexible direct current transmission device to the flexible direct current control protection device; the flexible direct current control protection device generates a second control parameter according to a low-speed analog quantity or a digital quantity in the relevant parameters of the working state of the simulated flexible direct current power transmission device, which are sent by the real-time simulator; sending the second control parameter to the real-time simulator; and the real-time simulator simulates the working state of the flexible direct-current power transmission device after being updated according to the second control parameter sent by the flexible direct-current control protection device and generates corresponding related parameters.
The test method provided by the embodiment of the invention is based on the simulation test system provided by the embodiment of the invention, and the system comprises the following components: the device comprises a real-time simulator, a power module characteristic simulation device and a flexible direct current control protection device; the real-time simulator is connected with the power module characteristic simulation device in an Aurora communication mode; the power module characteristic simulation device is connected with the flexible direct current control protection device in an optical fiber communication mode; the real-time simulator is used for simulating the working states of an alternating current/direct current power grid and the flexible direct current power transmission device, and the power module characteristic simulation device is used for simulating the working characteristics of a power module in the flexible direct current power transmission device. When the flexible direct current control protection device is tested, firstly, a real-time simulator simulates the working states of an alternating current/direct current power grid and the flexible direct current power transmission device according to simulation parameters, and sends related parameters of the simulated working states of the flexible direct current power transmission device to a power module characteristic simulation device; secondly, the power module characteristic simulation device simulates the working characteristics of a power module in the flexible direct current transmission device according to the received relevant parameters of the working state of the simulated flexible direct current transmission device, and sends the relevant parameters of the working state of the simulated flexible direct current transmission device and the relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device; then the flexible direct current control protection device generates a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current transmission device and the received relevant parameter of the working characteristic of the power module in the simulated flexible direct current transmission device, and sends the first control parameter to the power module characteristic simulation device; the power module characteristic simulation device also simulates the updated working characteristics of the power module in the flexible direct current transmission device according to the received first control parameter, and sends the first control parameter and the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device to the real-time simulator; and finally, the real-time simulator simulates the updated working state of the flexible direct current transmission device according to the first control parameter and the simulated relevant parameter of the updated working characteristic of the power module in the flexible direct current transmission device and generates the corresponding relevant parameter. In the scheme provided by the embodiment of the invention, the working parameters of the working state of the flexible direct-current power transmission device generated by the simulation of the real-time simulator are transmitted to the flexible direct-current control protection device in the mode of optical fiber communication after passing through the power module, and all data can be completely transmitted to the flexible direct-current control protection device in the mode of optical fiber communication, so that the flexible direct-current control protection device can input accurate control parameters according to the complete parameters, thereby achieving the purpose of completing the test of the performance of the flexible direct-current control protection device, and avoiding the defect that the flexible direct-current control protection device can be tested only after being simplified due to incomplete transmitted data caused by the limitation of an Aurora communication interface of the real-time simulator in the prior art; furthermore, because the power module characteristic simulation device exists in the scheme provided by the embodiment of the invention, the working characteristic of the power module in the flexible direct current transmission device can be completely simulated, and the defect that the real-time simulator in the prior art cannot completely simulate the working characteristic of the power module in the flexible direct current transmission device is overcome, so that the control protection capability of the flexible direct current control protection device on the power module in the flexible direct current transmission device can be tested, the function of the flexible direct current control protection device can be completely tested by the scheme provided by the embodiment of the invention, and the test effect is improved.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A simulation test system, comprising:
the device comprises a real-time simulator, a power module characteristic simulation device and a flexible direct current control protection device;
the real-time simulator is connected with the power module characteristic simulation device in an Aurora communication mode; the power module characteristic simulation device is connected with the flexible direct current control protection device in an optical fiber communication mode;
the real-time simulator is used for simulating the working states of the AC/DC power grid and the flexible DC power transmission device according to simulation parameters and sending related parameters of the simulated working states of the flexible DC power transmission device to the power module characteristic simulation device;
the power module characteristic simulation device is used for simulating the operating characteristics of a power module in the flexible direct current transmission device according to the received relevant parameters of the operating state of the simulated flexible direct current transmission device, and sending the relevant parameters of the operating state of the simulated flexible direct current transmission device and the relevant parameters of the operating characteristics of the power module in the simulated flexible direct current transmission device to the flexible direct current control protection device;
the flexible direct current control protection device is used for generating a first control parameter according to the received relevant parameter of the working state of the simulated flexible direct current power transmission device and the received relevant parameter of the working characteristic of a power module in the simulated flexible direct current power transmission device, and sending the first control parameter to the power module characteristic simulation device;
the power module characteristic simulation device is also used for simulating the updated working characteristics of the power module in the flexible direct current power transmission device according to the received first control parameter, and sending the first control parameter and the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current power transmission device to the real-time simulator;
the real-time simulator is further used for simulating the updated working state of the flexible direct current transmission device according to the first control parameter and the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device and generating the corresponding relevant parameters.
2. The simulation test system of claim 1, wherein the system further comprises a human-machine interaction device;
the human-computer interaction device is connected with the real-time simulator and used for generating simulation parameters according to the operation of a user and sending the simulation parameters to the real-time simulator;
and the human-computer interaction device is also used for displaying relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current power transmission device and relevant parameters of the updated working state of the simulated flexible direct current power transmission device.
3. The simulation test system of claim 1, wherein the optical fibers in the fiber optic communication mode include an input optical fiber and an output optical fiber.
4. The simulation test system of claim 1, wherein the real-time simulator is connected to the flexible dc control protection device via an input/output interface;
the real-time simulator is used for directly sending low-speed analog quantity or digital quantity in relevant parameters of the working state of the simulated flexible direct current power transmission device to the flexible direct current control protection device;
the flexible direct current control protection device is used for generating a second control parameter according to the low-speed analog quantity or the digital quantity and sending the second control parameter to the real-time simulator;
and the real-time simulator simulates the working state of the flexible direct-current power transmission device updated according to the second control parameter and generates corresponding related parameters.
5. The simulation test system of claim 4, wherein the flexible DC control protection device comprises:
the control and protection device comprises a converter valve control and protection device for engineering, a converter station control and protection device for engineering and a centralized control device;
the engineering converter valve control protection equipment is connected with the engineering converter control protection equipment, the engineering converter control protection equipment is connected with the engineering converter station control protection equipment, and the engineering converter station control protection equipment is connected with the centralized control equipment;
the real-time simulator is connected with the converter control protection equipment for engineering; and the real-time simulator is connected with the engineering converter station control protection equipment.
6. The simulation test system of claim 1, wherein the power module characteristic simulation device simulates the operating characteristics of a power module in the flexible dc power transmission device at least comprises:
capacitance voltage dispersion characteristics, capacitance overvoltage and undervoltage, optical fiber communication faults, false action and refusal action, board card faults and power supply faults.
7. A testing method based on the simulation testing system of any one of claims 1 to 6, comprising:
the real-time simulator simulates the working state of the flexible direct-current power transmission device of the alternating-current/direct-current power grid according to simulation parameters; sending the relevant parameters of the simulated working state of the flexible direct current transmission device to a power module characteristic simulation device;
the power module characteristic simulation device simulates the working characteristics of a power module in the flexible direct current transmission device according to the relevant parameters of the working state of the simulated flexible direct current transmission device, which are sent by the real-time simulator; sending the relevant parameters of the working state of the simulated flexible direct current transmission device and the relevant parameters of the working characteristics of the power module in the simulated flexible direct current transmission device to a flexible direct current control protection device;
the flexible direct current control protection device generates a first control parameter according to the relevant parameter of the working state of the simulated flexible direct current transmission device sent by the power module characteristic simulation device and the relevant parameter of the working characteristic of a power module in the simulated flexible direct current transmission device; sending the first control parameter to the power module characteristic simulation device;
the power module characteristic simulation device simulates the updated working characteristics of a power module in the flexible direct current transmission device according to the first control parameter sent by the flexible direct current control protection device; sending the first control parameter and the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device to the real-time simulator;
and the real-time simulator simulates the updated working state of the flexible direct current transmission device according to the first control parameter sent by the power module characteristic simulation device and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current transmission device and generates a corresponding relevant parameter.
8. The testing method according to claim 7, wherein before the simulating the operating state of the flexible direct current transmission device of the alternating current/direct current power grid by the real-time simulator according to the simulation parameters, the method further comprises:
the real-time simulator receives the simulation parameters sent by the human-computer interaction device; the human-computer interaction device generates the simulation parameters according to user operation;
the real-time simulator simulates the updated working state of the flexible direct current power transmission device according to the first control parameter sent by the power module characteristic simulation device and the relevant parameter of the updated working characteristic of the power module in the simulated flexible direct current power transmission device, and generates a corresponding relevant parameter, and then the method further comprises the following steps:
the real-time simulator sends the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current transmission device and the relevant parameters of the updated working state of the simulated flexible direct current transmission device to the human-computer interaction device;
and the human-computer interaction device receives and displays the relevant parameters of the updated working characteristics of the power module in the simulated flexible direct current power transmission device and the relevant parameters of the updated working state of the simulated flexible direct current power transmission device, which are sent by the real-time simulator.
9. The testing method of claim 7, further comprising:
the real-time simulator sends low-speed analog quantity or digital quantity in relevant parameters of the working state of the simulated flexible direct current transmission device to the flexible direct current control protection device;
the flexible direct current control protection device generates a second control parameter according to a low-speed analog quantity or a digital quantity in the relevant parameters of the working state of the simulated flexible direct current power transmission device, which are sent by the real-time simulator; sending the second control parameter to the real-time simulator;
and the real-time simulator simulates the working state of the flexible direct-current power transmission device updated according to the second control parameter sent by the flexible direct-current control protection device and generates corresponding related parameters.
10. The test method according to claim 7, wherein the operating characteristics of the power modules in the simulated flexible direct current transmission device at least comprise:
capacitance voltage dispersion characteristics, capacitance overvoltage and undervoltage, optical fiber communication faults, misoperation and refusal, board card faults and power supply faults.
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| CN111459136A (en) * | 2020-04-03 | 2020-07-28 | 全球能源互联网研究院有限公司 | Closed-loop testing device and testing method for flexible direct-current valve base control equipment |
| CN113848410B (en) * | 2021-09-30 | 2023-06-27 | 广东电网有限责任公司 | Detection method and device of control protection device |
| CN114035035A (en) * | 2021-11-11 | 2022-02-11 | 广东电网有限责任公司广州供电局 | Flexible direct current conversion protection link test system |
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| CN103439967A (en) * | 2013-08-23 | 2013-12-11 | 南方电网科学研究院有限责任公司 | Closed loop test system of flexible direct current transmission control protection system |
| CN104423373A (en) * | 2013-08-23 | 2015-03-18 | 南方电网科学研究院有限责任公司 | Closed-loop test system of flexible direct current transmission system control and protection system |
| WO2015196747A1 (en) * | 2014-06-26 | 2015-12-30 | 国家电网公司 | Test system for simulating direct-current bias of converter transformer |
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| CN103439967A (en) * | 2013-08-23 | 2013-12-11 | 南方电网科学研究院有限责任公司 | Closed loop test system of flexible direct current transmission control protection system |
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