Abstract
This paper proposes a fault simulation test method suitable for five divisions of power supply area. Distribution network structures are classified according to different power supply areas and more active interference is injected into test cases, which makes fault scenarios more diverse. Besides, to evaluate the whole process of fault isolation and recovery, the index of fault isolation and index of fault restoration are presented separately, and power recovery rate is provided to evaluate the load transfer capability. In the end, two typical test cases are displayed to clarify the whole test procedure and the use of evaluation method.
Highlights
Distribution automation is an important part of implementation of smart distribution network
To add more practical fault scenarios, a fault simulation test method suitable for five divisions of power supply area is proposed in this paper, and a treatment effect evaluation standard based on protection operating process is established
In order to make test case more close to the practical operation of distribution network, this section will classify all kinds of typical distribution network and design a complete fault testing scenarios based on five divisions of power supply area
Summary
Distribution automation is an important part of implementation of smart distribution network. The field operation of the distribution automation system (DAS) can improve the quality and reliability of power supply; greatly advance the management level of power dispatch and operation [1,2,3]. This method allows direct testing on the running network and checks the normal monitoring capability and fault processing functions. Current fault simulation test system is relatively single in system operation mode and fault scenario design, lacking practical significance on field operation testing. To add more practical fault scenarios, a fault simulation test method suitable for five divisions of power supply area is proposed in this paper, and a treatment effect evaluation standard based on protection operating process is established
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