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电网技术  2010 

HVDC附近继电保护装置中工频故障分量元件的适用性分析

, PP. 188-192

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Abstract:

针对实际高压直流输电(HVDC)工程中含突变量方向元件的纵联方向保护可能误动的情况,分析了工频故障分量保护原理。工频故障分量是基于叠加原理派生出来的,叠加原理的适用范围决定了工频故障分量元件的适用范围。通过分析HVDC的特性与传统交流系统的不同,证明叠加原理不能应用在含有HVDC的系统中,从而得出结论在HVDC附近不应该采用工频故障分量元件,实际工程中的纵联方向保护误动作与使用工频故障分量元件有一定关系。

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