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System testing method of power grid distributed stability control devices

A technology of stability control device and system testing, applied in electrical testing/monitoring, measuring device, measuring electricity, etc., can solve the problem of lack of on-site system testing means, and achieve the effect of automatic calibration and accurate and credible test results.

Inactive Publication Date: 2015-12-16
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0006] In summary, the current distributed stability control system still lacks effective on-site system testing methods

Method used

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  • System testing method of power grid distributed stability control devices
  • System testing method of power grid distributed stability control devices

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Embodiment Construction

[0039] Below will be further described in conjunction with accompanying drawing and the content of invention:

[0040] see figure 1As shown, the test system used in the system testing method of a distributed stability control device of a power grid in the present invention includes: a test command computer, a number of test devices; each distributed stability control master station, each distributed stability control sub-station and each Each distributed stability control execution station is connected to a test device, and each test device is connected to the test command computer through a wide area network. Each test device arranged in different locations is connected to the secondary side of the corresponding distributed stability control device (distributed stability control master station / substation / execution station). The current loop is short-connected on the outside of the current test terminal, the current output of the test device is added to the inside of the curr...

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Abstract

The invention discloses a system testing method of power grid distributed stability control devices. A test command computer performs simulation computation of voltage and current data of each fault surface in a fault scene in real time, thereby forming a test scheme. The test command computer issues the test scheme to each test device through a wireless public network, and each test device adopts a GPS clock synchronization technology to synchronously output voltage and current signals of the fault scene to tested stability control devices, and simulates the power grid operation fault scene, thereby realizing interworking of all links of a master station, substations, execution stations and a communication system of the distributed stability control system in a fault processing process to perform system testing. After testing is finished, each test device reports action information of the tested distributed stability control devices to the command computer, the command computer collects action information of the stability control device of each station, automatically checks a stability control device control strategy, and verifies whether execution logic of the distributed stability control devices is correct.

Description

【Technical field】 [0001] The invention relates to a system test method for a distributed stability control device of a power grid. 【Background technique】 [0002] The safety and stability control system is an important line of defense to ensure the safe and stable operation of the power grid. In order to solve the problem of safety and stability of the regional power grid, a large number of safety and stability control systems and devices have been applied. [0003] Most security and stability control systems design different strategies according to different stability problems of each power system and realize different functions. There are great differences in strategy functions, data structures, and information models. The stability control system composed of distributed stability control devices must be comprehensively and systematically tested to verify the reliability of the stability control system. [0004] At present, my country's detection methods for safety automa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02G01R31/00G06F17/50
CPCG01R31/00G05B23/02G06F30/20Y02E60/00
Inventor 刘健张小庆权立薛建陈一悰
Owner STATE GRID CORP OF CHINA
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