CN111414310A - Method and system for testing safety and stability control device of power grid capable of automatically generating test cases - Google Patents
Method and system for testing safety and stability control device of power grid capable of automatically generating test cases Download PDFInfo
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Abstract
The invention relates to the technical field of electric power test, in particular to a test method and a system for a power grid safety and stability control device capable of automatically generating a test case, wherein the test method comprises the following steps: acquiring a comprehensive information model of a tested safety and stability control device, wherein the comprehensive information model comprises state parameters and strategy logic information of the safety and stability control device during electric power operation; analyzing the comprehensive information model, generating virtual fault data and preset message action information of the power system, and forming a test case; and testing the tested safety and stability control device according to the test case. The invention realizes the automatic generation of the test case tested by the safety and stability control device, does not need to manually calculate and edit the test case, simplifies the workload and the working difficulty of the testers, reduces the requirements on the testers and improves the test efficiency of the safety and stability control device.
Description
Technical Field
The invention relates to the technical field of power testing, in particular to a method and a system for testing a safety and stability control device of a power grid, wherein a test case is automatically generated.
Background
The scale of the power system is gradually enlarged, the structure is increasingly complex, the operation mode is flexible and changeable, and the problem of system stability is increasingly prominent. As the important means for ensuring the second and third defense lines of the safe and stable operation of the power system and improving the transmission capacity of the power grid, the safe and stable control system is widely applied. The safety and stability control system has the advantages that the number of devices related to the safety and stability control system is large, the geographical positions of the devices are scattered, the safety and stability control devices of a plurality of stations form the safety and stability control system, the functions of regional stability control are achieved together through cooperation, one-time complete system test needs to be conducted on the huge system, and the workload and the difficulty are very large. On the other hand, the real simulation requirement on the running mode of the safety and stability control system is higher during system test, and the conventional test means can hardly meet the test requirement.
At present, a conventional test tool does not have the capability of automatically forming a test case, a safety and stability professional tester with rich experience is required to perform deployment and configuration of the test case, and the conventional test tool has many limitations in application, so that the test efficiency is low.
Disclosure of Invention
The invention provides a method and a system for testing a power grid safety and stability control device capable of automatically generating a test case, overcomes the defects of the prior art, and can effectively solve the problem that the test case cannot be automatically formed by the test mode of the conventional power grid safety and stability control device.
One of the technical schemes of the invention is realized by the following measures: a power grid safety and stability control device testing method capable of automatically generating a test case is characterized by comprising the following steps:
acquiring a comprehensive information model of a tested safety and stability control device, wherein the comprehensive information model comprises state parameters and strategy logic information of the safety and stability control device during electric power operation; analyzing the comprehensive information model, generating virtual fault data of the power system and preset message action information to form a test case, wherein the virtual fault data of the power system comprises a virtual N-1/N-2 fault, a virtual overload fault, a virtual frequency fault and a virtual voltage fault; and testing the tested safety and stability control device according to the test case.
The following is further optimization or/and improvement of the technical scheme of the invention:
the generating of the virtual fault data of the power system specifically includes:
analyzing and reconfiguring the comprehensive information model, and converting the comprehensive information model into a system operation mode, a fault point and a fault form;
and matching the system operation mode, the fault point and the fault form with the power state data and the specific interval respectively to generate virtual fault data of the power system.
The generating of the preset message action information specifically includes:
analyzing the comprehensive information model; acquiring corresponding pressing plates, position signals and action outlet contacts in the comprehensive information model to form action events; extracting fixed value information in the comprehensive information model, combining the fixed value information with parameters of the power system, and calculating to obtain fault information; and combining the action event, the fault information and the error prevention condition to form preset message action information.
The above-mentioned safety and stability control device under test is tested according to the test case, specifically includes:
outputting virtual fault data of the power system to the tested safety and stability control device; the tested safety and stability control device receives and executes the virtual fault data of the power system and outputs execution action information; and matching and checking the output execution action information with the preset message action information, generating a test report, and completing the test of the tested safety and stability control device.
The matching and checking of the output execution action information and the preset message action information specifically comprises:
matching the output execution action information with preset message action information, and judging whether a matching condition is met, wherein the matching condition comprises: A. matching the event in the execution action information with the action event of the preset message action information; B. matching fault data in the execution action information with fault information of preset message action information;
and if the matching condition is not met, the verification is not passed. The test cases can be displayed in a text file form or a graphical interface form, and the test cases in the two forms can be edited, modified and stored.
The second technical scheme of the invention is realized by the following measures: a power grid safety and stability control device test system capable of automatically generating a test case comprises a test unit and a plurality of communication interface units;
the test unit is used for receiving and analyzing a comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information to form a test case, and testing the tested safety and stability control device according to the test case, wherein the virtual fault data of the power system comprises a virtual N-1/N-2 fault, a virtual overload fault, a virtual frequency fault and a virtual voltage fault; and the communication interface unit is used for data transmission between the tested safety and stability control device and the test unit.
The following is further optimization or/and improvement of the technical scheme of the invention:
the communication interface unit comprises a test interface module and a communication transmission module;
the communication transmission module is respectively connected with the test interface module and the test unit and is used for data transmission between the test interface module and the test unit; the test interface module is connected with the tested test interface module and used for acquiring a comprehensive information model of the tested safety and stability control device, outputting the virtual fault data of the power system generated by the test unit to the tested safety and stability control device, and receiving the execution action information output by the tested safety and stability control device after executing the virtual fault data of the power system.
The test unit comprises a test case generation module and a function test module;
the test case generation module is used for analyzing the comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information and forming a test case; the function test module is used for outputting virtual fault data of the power system to the tested safety and stability control device according to the test case; receiving execution action information output after the tested safety and stability control device executes the virtual fault data of the power system; and matching and checking the output execution action information with the preset message action information to generate a test report.
The invention realizes the automatic generation of the test case tested by the safety and stability control device, namely, the comprehensive information model of the tested safety and stability control device is automatically obtained, the virtual fault data of the power system is automatically generated according to the comprehensive information model, and meanwhile, the preset message action information is automatically calculated to form the test case without manually calculating and editing the test case, thereby simplifying the workload and the working difficulty of testers, reducing the requirements on the testers and improving the test efficiency of the test of the safety and stability control device.
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FIG. 1 is a flow chart of example 1 of the present invention.
Fig. 2 is a flowchart of generating virtual fault data of the power system in embodiment 1 of the present invention.
Fig. 3 is a flowchart of generating preset message action information in embodiment 1 of the present invention.
FIG. 4 is a test flow chart in example 1 of the present invention.
Fig. 5 is a schematic system configuration diagram according to embodiment 2 of the present invention.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
The invention is further described with reference to the following examples and figures:
s1, acquiring a comprehensive information model of the tested safety and stability control device, wherein the comprehensive information model comprises state parameters and strategy logic information of the safety and stability control device during electric power operation; s2, analyzing the comprehensive information model, generating virtual fault data of the power system and preset message action information, and forming a test case, wherein the virtual fault data of the power system comprise virtual N-1/N-2 faults, virtual overload faults, virtual frequency faults and virtual voltage faults; and S3, testing the tested safety and stability control device according to the test case.
The invention realizes the automatic generation of the test case tested by the safety and stability control device, namely, the comprehensive information model of the tested safety and stability control device is automatically obtained, the virtual fault data of the power system is automatically generated according to the comprehensive information model, and meanwhile, the preset message action information is automatically calculated to form the test case without manually calculating and editing the test case, thereby simplifying the workload and the working difficulty of testers, reducing the requirements on the testers and improving the test efficiency of the test of the safety and stability control device.
In the above embodiment, the comprehensive information model of the measured safety and stability control device is the power state parameters and the policy logic information of the safety and stability control device for representing operation, and includes all the operation parameters, fixed values, policy models, and other power state data of the safety and stability control device, where the policy model is a device implementing a stability control policy when the power system is abnormally operated.
In the above embodiment, according to the integrated information model, the tested safety and stability control device generates virtual fault data and preset message action information of the power system, and forms a test case. The invention can test a plurality of tested safety and stability control devices simultaneously, so that the comprehensive information models of the plurality of tested safety and stability control devices can be received simultaneously, then a plurality of test cases are generated, the number of the test cases is the same as that of the safety and stability control devices which are tested simultaneously, and the tested safety and stability control devices are divided into the master station and the sub-station, so that after all the test cases are generated, all the test cases can be displayed by the test engineering tree structure interface of the safety and stability control system, but not only the test engineering tree structure interface, but also the test cases can be displayed in a text file form or other graphical interface forms, and the test cases can be edited, modified and stored under the forms.
The method for testing the power grid safety and stability control device of the automatic generation test example can be further optimized or/and improved according to actual needs:
as shown in fig. 2, the generating of the virtual fault data of the power system specifically includes: s211, analyzing and reconfiguring the comprehensive information model, and converting the comprehensive information model into an electric power system operation mode, a fault point and a fault form; the method specifically comprises the steps of extracting all sub-function information in a comprehensive information model of the safety and stability control device, splitting the sub-function information into a plurality of sub-system operation structures and a plurality of sub-logic strategy information, recombining the sub-system operation structures into related power system main grid operation structure information, converting the information into a power system operation mode, extracting fault points of the power system operation mode, logically classifying and combining the sub-strategies, and converting the logic classification combination into 4 fault modes of N-1/N-2, overload, frequency, voltage and the like.
And respectively matching the operation mode, the fault point and the fault form of the power system with the power state data and the specific interval to generate virtual fault data of the power system. The power state data comprises voltage, current, power, frequency and other data which are formed in a state time sequence mode, and the specific intervals comprise intervals of lines, main transformers, machine sets and the like. And aiming at the functions of the tested safety and stability control device, the virtual fault data of the power system in the embodiment comprises a virtual N-1/N-2 fault, a virtual overload fault, a virtual frequency fault and a virtual voltage fault.
As shown in fig. 3, the generating of the preset message action information specifically includes:
s221, analyzing the comprehensive information model; s222, acquiring corresponding pressing plates, position signals and action outlet contacts in the comprehensive information model to form action events; s223, extracting fixed value information in the comprehensive information model, combining the fixed value information with parameters of the power system, and calculating to obtain fault information; the parameters of the electric power system comprise rated frequency, rated voltage, PT transformation ratio, CT transformation ratio, unit rated capacity, main transformer rated apparent power and other parameters; s224, combining the action event, the fault information and the error prevention condition to form preset message action information.
As shown in fig. 4, the testing the tested safety and stability control device according to the test case specifically includes:
s31, outputting virtual fault data of the power system to the tested safety and stability control device;
s32, the tested safety and stability control device receives and executes the virtual fault data of the power system and outputs the execution action information;
and S33, matching and checking the output execution action information and the preset message action information, generating a test report, and completing the test of the tested safety and stability control device.
As shown in fig. 4, the matching and checking of the output execution action information and the preset message action information specifically includes:
matching the output execution action information with preset message action information, and judging whether a matching condition is met, wherein the matching condition comprises: A. matching the event in the execution action information with the action event of the preset message action information; B. matching fault data in the execution action information with fault information of preset message action information;
and if the matching condition is not met, the verification is not passed.
Embodiment 2, as shown in fig. 5, the method for testing a safety and stability control device of a power grid of an automatic generation test example is characterized by comprising a test unit and a plurality of communication interface units;
the test unit is used for receiving and analyzing a comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information to form a test case, and testing the tested safety and stability control device according to the test case, wherein the virtual fault data of the power system comprises a virtual N-1/N-2 fault, a virtual overload fault, a virtual frequency fault and a virtual voltage fault; and the communication interface unit is used for data transmission between the tested safety and stability control device and the test unit.
As shown in fig. 5, a safety and stability control system for ensuring safe and stable operation of a power grid at present includes a safety and stability control device (master station) and a plurality of safety and stability control devices (slave stations). The safety and stability control device (main station) is in communication connection with the plurality of safety and stability control devices (sub-stations). The system comprises a safety and stability control device (main station), a safety and stability control device (sub station), a power supply and a power supply, wherein the safety and stability control device (main station) receives power data collected by the main station in real time, receives power data sent by the safety and stability control device (sub station) in real time, comprehensively judges the operation mode of the system, forms required section power, implements a stability control strategy when the power system is abnormally operated; the safety and stability control device (substation) receives the power data collected by the substation and sends the power data to the safety and stability control device (main station), and when the power system operates abnormally, the substation executes a command sent by the safety and stability control device (main station) so as to keep the power system operating stably. In order to further ensure the safety and stability of the power system, the safety and stability control system needs to be tested regularly, in particular, the functions of all safety and stability control devices need to be tested. Therefore, the technical scheme is provided with a plurality of communication interface units which are respectively connected with all safety and stability control devices needing to be tested in the safety and stability control system during testing.
The method for testing the power grid safety and stability control device of the automatic generation test example can be further optimized or/and improved according to actual needs:
as shown in fig. 5, the communication interface unit includes a test interface module and a communication transmission module;
the communication transmission module is respectively connected with the test interface module and the test unit and is used for data transmission between the test interface module and the test unit;
the test interface module is connected with the tested test interface module and used for acquiring a comprehensive information model of the tested safety and stability control device, outputting the virtual fault data of the power system generated by the test unit to the tested safety and stability control device, and receiving the execution action information output by the tested safety and stability control device after executing the virtual fault data of the power system.
The communication transmission module in the technical scheme can be 4G communication equipment, the 4G communication equipment can be connected with the test interface module through a shielding network cable, and the 4G communication equipment is in wireless communication connection with the test unit. The test interface module acquires a comprehensive information model of the tested safety and stability control device connected with the test interface module, and sends the comprehensive information model to the test unit through the communication transmission module. During testing, the testing unit sends virtual fault data of the power system to the corresponding tested safety and stability control device sequentially through the communication transmission module and the testing interface module, and the tested safety and stability control device receives and executes the virtual fault data and then outputs execution action information to the testing unit sequentially through the testing interface module and the testing unit. In the above technical solution, the test interface module may be an interface device SCTD 310.
As shown in fig. 5, the test unit includes a test case generation module and a functional test module;
the test case generation module is used for analyzing the comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information and forming a test case;
the function test module is used for outputting virtual fault data of the power system to the tested safety and stability control device according to the test case; receiving execution action information output after the tested safety and stability control device executes the virtual fault data of the power system; and matching and checking the output execution action information with the preset message action information to generate a test report.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (10)
1. A power grid safety and stability control device testing method capable of automatically generating a test case is characterized by comprising the following steps:
acquiring a comprehensive information model of a tested safety and stability control device, wherein the comprehensive information model comprises state parameters and strategy logic information of the safety and stability control device during electric power operation;
analyzing the comprehensive information model, generating virtual fault data of the power system and preset message action information to form a test case, wherein the virtual fault data of the power system comprises a virtual N-1/N-2 fault, a virtual overload fault, a virtual frequency fault and a virtual voltage fault;
and testing the tested safety and stability control device according to the test case.
2. The method for testing the safety and stability control device of the power grid capable of automatically generating the examples according to claim 1, wherein the generating of the virtual fault data of the power system specifically comprises:
analyzing and reconfiguring the comprehensive information model, and converting the comprehensive information model into a system operation mode, a fault point and a fault form;
and matching the system operation mode, the fault point and the fault form with the power state data and the specific interval respectively to generate virtual fault data of the power system.
3. The method for testing the power grid safety and stability control device capable of automatically generating the test case according to claim 1 or 2, wherein the generating of the preset message action information specifically comprises:
analyzing the comprehensive information model;
acquiring corresponding pressing plates, position signals and action outlet contacts in the comprehensive information model to form action events;
extracting fixed value information in the comprehensive information model, combining the fixed value information with parameters of the power system, and calculating to obtain fault information;
and combining the action event, the fault information and the error prevention condition to form preset message action information.
4. The method for testing the power grid safety and stability control device capable of automatically generating the test case according to claim 1, 2 or 3, wherein the step of testing the tested safety and stability control device according to the test case specifically comprises the steps of:
outputting virtual fault data of the power system to the tested safety and stability control device;
the tested safety and stability control device receives and executes the virtual fault data of the power system and outputs execution action information;
and matching and checking the output execution action information with the preset message action information, generating a test report, and completing the test of the tested safety and stability control device.
5. The method for testing the power grid safety and stability control device of the automatic generation test case as claimed in claim 4, wherein the matching and verification of the output execution action information and the preset message action information specifically comprises:
matching the output execution action information with preset message action information, and judging whether a matching condition is met, wherein the matching condition comprises: A. matching the event in the execution action information with the action event of the preset message action information; B. matching fault data in the execution action information with fault information of preset message action information;
and if the matching condition is not met, the verification is not passed.
6. The method for testing the power grid safety and stability control device capable of automatically generating the test cases according to any one of claims 1 to 5, wherein the test cases can be displayed in a text file form or a graphical interface form, and the test cases in the two forms can be edited, modified and stored.
7. The power grid safety and stability control device testing system capable of automatically generating the examples according to any one of claims 1 to 6, characterized by comprising a testing unit and a plurality of communication interface units;
the test unit is used for receiving and analyzing a comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information to form a test case, and testing the tested safety and stability control device according to the test case, wherein the virtual fault data of the power system comprises a virtual N-1/N-2 fault, a virtual overload fault, a virtual frequency fault and a virtual voltage fault;
and the communication interface unit is used for data transmission between the tested safety and stability control device and the test unit.
8. The power grid safety and stability control device test system capable of automatically generating examples according to claim 7, wherein the communication interface unit comprises a test interface module and a communication transmission module;
the communication transmission module is respectively connected with the test interface module and the test unit and is used for data transmission between the test interface module and the test unit;
the test interface module is connected with the tested test interface module and used for acquiring a comprehensive information model of the tested safety and stability control device, outputting the virtual fault data of the power system generated by the test unit to the tested safety and stability control device, and receiving the execution action information output by the tested safety and stability control device after executing the virtual fault data of the power system.
9. The power grid safety and stability control device test system capable of automatically generating examples according to claim 7, wherein the test unit comprises a test case generation module and a function test module;
the test case generation module is used for analyzing the comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information and forming a test case;
the function test module is used for outputting virtual fault data of the power system to the tested safety and stability control device according to the test case; receiving execution action information output after the tested safety and stability control device executes the virtual fault data of the power system; and matching and checking the output execution action information with the preset message action information to generate a test report.
10. The power grid safety and stability control device test system capable of automatically generating examples according to claim 8, wherein the test unit comprises a test case generation module and a function test module;
the test case generation module is used for analyzing the comprehensive information model of the tested safety and stability control device, generating virtual fault data of the power system and preset message action information and forming a test case;
the function test module is used for outputting virtual fault data of the power system to the tested safety and stability control device according to the test case; receiving execution action information output after the tested safety and stability control device executes the virtual fault data of the power system; and matching and checking the output execution action information with the preset message action information to generate a test report.
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| CN112367200A (en) * | 2020-11-09 | 2021-02-12 | 南方电网科学研究院有限责任公司 | Simulation system and method of stability control device |
| CN112394708A (en) * | 2020-10-30 | 2021-02-23 | 国网新疆电力有限公司电力科学研究院 | Intelligent Internet of things management virtual test method for power grid safety and stability control system |
| CN112508511A (en) * | 2020-11-26 | 2021-03-16 | 国网山西省电力公司电力科学研究院 | Automatic generation method for stability control strategy test report |
| CN112506173A (en) * | 2020-12-16 | 2021-03-16 | 国网山西省电力公司电力科学研究院 | Strategy testing method for single stability control device |
| CN112531688A (en) * | 2020-11-26 | 2021-03-19 | 国网山西省电力公司电力科学研究院 | Method for automatically generating stability control strategy test case |
| CN113419970A (en) * | 2021-08-24 | 2021-09-21 | 卡斯柯信号(北京)有限公司 | Interface fault testing method and device |
| CN113671934A (en) * | 2021-08-11 | 2021-11-19 | 国网山东省电力公司电力科学研究院 | Safety and stability control device testing method based on digital-analog simulation |
| CN113688059A (en) * | 2021-10-26 | 2021-11-23 | 南京东博智慧能源研究院有限公司 | Automatic function detection system and method for stability control system |
| CN117130945A (en) * | 2023-10-26 | 2023-11-28 | 中国证券登记结算有限责任公司 | Test method and device |
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| CN112531688A (en) * | 2020-11-26 | 2021-03-19 | 国网山西省电力公司电力科学研究院 | Method for automatically generating stability control strategy test case |
| CN112506173A (en) * | 2020-12-16 | 2021-03-16 | 国网山西省电力公司电力科学研究院 | Strategy testing method for single stability control device |
| CN112506173B (en) * | 2020-12-16 | 2023-08-18 | 国网山西省电力公司电力科学研究院 | Strategy testing method for single stable control device |
| CN113671934A (en) * | 2021-08-11 | 2021-11-19 | 国网山东省电力公司电力科学研究院 | Safety and stability control device testing method based on digital-analog simulation |
| CN113671934B (en) * | 2021-08-11 | 2022-08-12 | 国网山东省电力公司电力科学研究院 | Safety and stability control device testing method based on digital-analog simulation |
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| CN113688059A (en) * | 2021-10-26 | 2021-11-23 | 南京东博智慧能源研究院有限公司 | Automatic function detection system and method for stability control system |
| CN117130945A (en) * | 2023-10-26 | 2023-11-28 | 中国证券登记结算有限责任公司 | Test method and device |
| CN117130945B (en) * | 2023-10-26 | 2024-02-09 | 中国证券登记结算有限责任公司 | Test method and device |
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Application publication date: 20200714 |