An intelligent distributed feeder automation function test method for power distribution terminals

A feeder automation and power distribution terminal technology, applied in the direction of automatic disconnection emergency protection devices, electrical components, circuit devices, etc., can solve the problems of complex test environment, low cost, lack of portability, etc., and achieve low system cost , simple construction, and the effect of reducing liability risks

Active Publication Date: 2021-12-24
JIANGSU DAYBRIGHT INTELLIGENT ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The RTDS test system is expensive, and the special test system is not cheap because it needs to use multiple relay protection testers and supporting test tools; Perform various distributed FA logic tests on multiple terminals; no portability

Method used

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  • An intelligent distributed feeder automation function test method for power distribution terminals
  • An intelligent distributed feeder automation function test method for power distribution terminals
  • An intelligent distributed feeder automation function test method for power distribution terminals

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0071] Such as figure 1 As shown, an intelligent distributed feeder automatic testing method provided by the present invention includes a computer loaded with the shown test model, an Ethernet switch, a relay protection tester and a terminal under test, and the Ethernet switch is respectively connected to the computer, the relay protection The tester and the terminal under test, the electrical quantity of the relay protection tester is connected to the terminal under test.

[0072] The power distribution terminal in the figure is the object to be tested, and the test tool does not appear in the figure. The test tool can be a simulated circuit breaker or a medium-voltage switchgear. The output ...

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Abstract

The invention discloses an intelligent distributed feeder automatic function testing method for a power distribution terminal, which acquires setting information of a fault type to be tested; determines the electrical quantity for the switch according to the fault type to be tested and the position of a supporting switch of the terminal to be tested State sequence, according to the electrical quantity state sequence, provide the terminal under test with the electrical quantity required for testing the distributed FA function; the terminal under test completes the distributed FA requirement removal according to the obtained electrical quantity and the GOOSE signal associated with the fault type Fault, isolation fault protection trip action or automatic closing action required to restore power supply; compare the distributed FA action behavior determined by the test model with the actual action behavior of the terminal under test, and if the two are consistent, it is determined that the terminal under test handles this type of fault when the action is correct. Advantages: Quickly complete the joint commissioning of distributed FA functions between distribution terminals and ring net boxes or switch stations, and play an active role in promoting the application of distributed FA functions in power grids.

Description

technical field [0001] The invention relates to an automatic function test method for an intelligent distributed feeder of a power distribution terminal, belonging to the technical field of power distribution terminal product testing. Background technique [0002] At present, China Southern Power Grid and State Grid are vigorously promoting the application of distribution terminals (referred to as terminals) with distributed FA (distributed feeder automation) functions, which is very beneficial to improving the reliability of power supply of distribution lines and reducing the time of power outages due to line faults. [0003] Distributed FA testing of terminals is an extremely important technical work with a heavy workload. During network access detection, special detection, installation and debugging, the terminal needs to test the fault handling function and logic of the distributed FA. The purpose is to test the correctness of the distributed FA function logic of the ter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/04H02J13/00G01R31/08
CPCH02H3/044H02J13/0004G01R31/086Y02E60/00Y04S10/20
Inventor 高明
Owner JIANGSU DAYBRIGHT INTELLIGENT ELECTRIC CO LTD
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