Feeder automation field automatic test method and system

Abstract

The invention discloses a feeder automation field automatic test method and system, which relate to the field of power distribution automation. The method comprises the following steps of in a test process, performing data synthesis according to three parts of data, namely test data of a previous step, topology change time obtained by feedback of action behaviors of a feeder terminal in a tested system after the test of the previous step is executed and data calculated in the current step, generating test data for the current step, and controlling the test to be automatically performed until the action behavior of the tested system does not change any more. According to the test method of the scheme, multiple test schemes do not need to be compiled in advance and sequence working states do not need to be manually set, the test scheme is automatically generated according to the action behavior feedback of the feeder terminals in the tested system, the feeder automation function can be checked, the coordination among the multiple feeder terminals in the system can be checked, the requirements on testers are reduced, the field test process is simple, the test result is reliable, and the test is comprehensive.

Description

technical field [0001] The invention relates to the field of power distribution automation, in particular to a field automatic test method and system for feeder automation. Background technique [0002] The existing test method is that multiple relay protection instruments inject normal current and voltage into multiple feeder automation terminals; one of the relay protection instruments injects fault current and voltage into a feeder automation terminal to generate a preset switch value, and the preset switch The logic of the quantity is the preset logic rule. This method needs to set the standard fault in advance, but does not give the specific method of injecting the fault current and voltage; only one relay protector injects the fault current and voltage into one feeder automation terminal, and the power distribution When a fault occurs in the network system, fault current will flow through multiple feeder terminals on the fault branch. The electrical quantities in sever...

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Problems solved by technology

[0002] The existing test method is that multiple relay protection instruments inject normal current and voltage into multiple feeder automation terminals; one of the relay protection instruments injects fault current and voltage into a feeder automation terminal to generate a preset switch value, and the preset switch The logic of the quantity is the preset logic rule. This method needs to set the standard fault in advance, but does not give the specific method of injecting the fault current and voltage; only one relay protector injects the fault current and voltage into one feeder automation terminal, and the power distribution When a fault occurs in the network system, fault current will flow through multiple feeder terminals on the fault branch. The electrical quantities in several working states of the test sequence in the above method are artificially set, which is not the actual failure of the system where the feeder terminal under test is located. Even if the tested feeder terminal passes the test, it does not mean that the tested feeder terminal is still correct when the system fails once in actual operation.

The above test plan is compiled according to the specific function type of the feeder automation of a feeder terminal, without testing the mutual influence of multiple feeder terminals operating simultaneously in the system, it is impossible to determine whether the cooperation of multiple feeder terminals in the system meets the requirements of the system operation Require

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