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Feeder automation physical simulation verification platform and test method

A feeder automation and physical simulation technology, applied in instruments, simulators, control/regulation systems, etc., can solve the problems of inability to simulate various operating conditions of 10kV distribution lines, single test function, slow switching of switches, etc. Effects of Feeder Automation Functional Testing Capability

Pending Publication Date: 2022-02-18
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that in order to solve the problem that the existing technology has a single automatic test function for the feeder, it is impossible to simulate various operating conditions of the actual 10kV power distribution line (such as slow movement of the switch, refusal of the switch, communication interruption, single-phase ground fault, Insufficient transfer capacity and other abnormal conditions), to test whether the feeder automation function logic operates correctly, etc., propose a physical simulation verification platform and test method for feeder automation

Method used

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  • Feeder automation physical simulation verification platform and test method
  • Feeder automation physical simulation verification platform and test method
  • Feeder automation physical simulation verification platform and test method

Examples

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Effect test

Embodiment 1

[0053] Such as Figure 4 As shown, the test two-phase short-circuit fault is located at the subsection point of the circuit breaker, the D05 switch refuses to move, and the voltage-time feeder automation strategy correctly operates to isolate the fault.

[0054] In this embodiment, the fault simulation system is connected to the line unit at the back side of D05 and the front side of D06, and the protection measurement and control unit detects the fault current signal, and the state quantity output module controls the CB overcurrent tripping through the main controller , the terminal under test controls D04 and D06 to open on loss of voltage; after the main controller controls CB to reclose successfully, the terminal under test controls D04 to automatically close after X time of incoming calls. Accelerated trip after the fault information, the terminal under test controls D04 loss of voltage to open and lock forward, and D06 reverse locks; after CB recloses successfully, LS2 c...

Embodiment 2

[0056] Such as Figure 5 As shown, the test single-phase ground fault is located on the front side of the line tie switch, the operating conditions of each switch are normal, and the self-adaptive integrated feeder automation strategy works correctly to isolate the fault.

[0057] In this embodiment, the fault simulation system is connected to the line unit at the rear side of D06 and the front side of LS2, and the terminal under test on the D04 side is put into the fault line selection mode. After D04 is successfully reclosed once, D05 and D06 are automatically closed after X time; after D06 is closed, due to the reclosed fault within Y time, the terminal under test on the switch side of D06 detects a ground fault and then accelerates to trip and lock , LS2 reverse blocking, complete fault isolation and restore power supply, and complete self-adaptive comprehensive feeder automation function test at the same time.

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Abstract

The invention relates to a feeder automation physical simulation verification platform and a test method, the platform comprises a comprehensive control system, a comprehensive test system and a plurality of physical simulation subsystems, and the plurality of physical simulation subsystems are connected with the comprehensive control system and the comprehensive test system. The comprehensive test system is connected with a tested power distribution terminal and a power distribution automation master station, and 12 power distribution terminals can be accessed at the same time to carry out feeder automation function simulation verification. In the embodiment of the invention, the closed-loop performance test of the active power distribution network with the power distribution terminal can be realized through the physical simulation system built by the low-voltage primary equipment, an efficient detection platform and a test method are provided for functional logic verification of a feeder automation system, and the terminal feeder automation function test capability under the active power distribution network is effectively improved.

Description

technical field [0001] The invention relates to a feeder automation physical simulation verification platform and a test method, belonging to the technical field of power distribution equipment detection. Background technique [0002] As an important part of distribution automation, feeder automation will directly affect the fault handling and self-healing capabilities of the distribution automation system if its action logic is correct. Due to the lack of controllable time for power outage maintenance of the distribution network, it is not only difficult to inject fault information synchronously when carrying out feeder automation tests for distribution lines operating under load. Affect the safe operation level of distribution network. [0003] In order to reduce the safety risk of the power grid and reduce the power failure loss of users, it is necessary to carry out a complete action logic verification for the correctness of the feeder automation control strategy, and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 徐经民潘建兵郭亮刘洋邓才波曹蓓徐在德安义
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST