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高压电器  2015 

柔性直流系统断路器保护配合研究

DOI: 10.13296/j.1001-1609.hva.2015.11.006, PP. 33-40

Keywords: 柔性直流系统,直流断路器,故障保护,保护配合

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Abstract:

文中针对直流断路器与柔性直流系统的保护配合进行分析,理论分析了保护配合可行的策略和方式,进而针对不同电压等级下的直流系统实例,结合断路器样机测试结果,利用PSCAD/EMTDC仿真软件分析了极间短路故障时保护配合对系统参数和断路器参数的要求。仿真结果表明,不同保护策略下对系统耐受能力和直流断路器开断性能要求不同,需要根据系统特点选择不同的保护策略。

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