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Configuration and Setting of Protections for Wind Farm Collector System

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Compared with traditional synchronous generators,wind turbine generators are different in electricity generation principles,control modes and integration topologies,which makes their fault characteristics change a lot.This,consequently,brings challenges regarding the behavior of protections for wind farm collector systems.In this paper,based on a practical wind farm,configuration and setting of relay protections for such a collector system is analyzed and determined systematically in consideration of the selectivity and sensitivity of the protections.Results show that misoperation of overcurrent relay and zero sequence overcurrent relay of the non-fault collector line occurs,and bus differential relay of collector bus cannot remove the single-phase-to-ground fault.In order to solve the problems,a novel substation-area protection for collector system is proposed and its operation mechanism is discussed.

configurationsettingprotective relaycollector systemwind farm

Li Yanbin、Zhang Li、Bi Tianshu、Cao Hong、Liu Sumei

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State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University

High-Tech Research & Development Centre, National Development and Reform Commission

National High-tech R&D Program of China (863Program)"111 project" under the Grant B08013 and the Fundamental Research Funds for the Central Universities

2012AA0502082014QN20

2014

电气(英文版)
中国电机工程学会

电气(英文版)

ISSN：1003-4994
年,卷(期)：2014.25(5)
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