Method and device for automatic detection of in-situ line protection devices based on automatic construction of use cases

Abstract

The invention discloses an automatic detection method and device for an in-situ line protection device automatically constructed based on a use case. The automatic detection method of the present invention includes obtaining a total station system configuration file of the tested in-situ line protection device; The ground-based line protection device and the test device are physically connected to build an automatic detection system; the test case of the ground-based line protection device is automatically constructed according to the configuration file of the total station system; the automatic detection of the localized line protection device is completed using the closed-loop mode through the test case. detection. The invention can realize the automatic construction of the test case model of the in-situ line protection device in the analysis of the configuration file of the whole station system, and complete the one-key automatic maintenance test of the in-situ line protection in the closed-loop mode, which not only improves the efficiency of automatic detection, but also breaks through the automatic The limitation that test tools cannot be widely used in new smart substations.

Description

technical field [0001] The invention relates to an equipment testing technology of an intelligent substation, in particular to an automatic detection method and device for a localized line protection device constructed automatically based on a use case. Background technique [0002] Since the State Grid Corporation of China started the pilot construction of smart substations in 2009, up to now, more than 5,000 smart substations have been built in China, including first-generation smart substations and second-generation smart substations. Due to the high degree of system integration and reasonable structural layout, smart substations have achieved certain results in terms of economy, energy conservation and environmental protection. However, in practical application, many problems have also been exposed. Especially in the operation and maintenance of smart substations, the heavy maintenance workload and high maintenance costs greatly restrict the development of smart substat...

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Problems solved by technology

[0003] According to the relevant standards and specifications for the construction of smart substations, digital SV messages are used for local line protection of 110kV and below voltage levels, and the sampling data of local line protection for voltage levels of 220kV and above are analog signals. , there are the following problems: ① There is no liquid crystal display structure in the on-site line protection device, the digital relay protection tester + the analog relay protection tester + the manual detection mode of the management machine are used for the maintenance and debugging of related functions, and there are many types of test equipment and tools , the operation is cumbersome, and the degree of automation is low; ② At present, there are related in-situ line protection automatic test instruments on the market, but its application mainly depends on the configuration of the test template. It takes a long time to configure the template for the first test, and the universality of the template Poor performance and limited application and promotion; ③ In terms of joint commissioning of newly built on-site smart substations, different substations have different line planning and design, and the corresponding line protection configurations are not the same. The current automatic test tools cannot The configuration file (SCD) file flexibly and automatically generates test cases for related line protection, which cannot be widely used in the joint commissioning of new on-site smart substations

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