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中文摘要：
广域信息采集易受干扰而出现信息丢失或信息畸变,现有广域保护理论对此考虑不足,文中提出了一种高容错性的广域后备保护算法,用于变电站集中式后备保护。集中式后备保护系统根据本站元件电压、电流信息计算得到的故障方向信息和故障距离信息,以及从相邻变电站收集到的故障方向信息和故障距离信息,通过容错判别来确定故障位置。算例表明,当保护范围内任何一个保护元件误动、拒动或其故障信息丢失时不会造成后备保护系统的错误判别。该算法简单可靠,具有极高的容错性。
英文摘要：
Wide area information is easily lost and distorted caused by disturbance,which is not fully considered in current wide area protection principle.A wide area backup protection algorithm with high fault-tolerance performance is proposed to implement the centralized substation backup protection system（CSBPS）.CSBPS can locate the fault element with fault-tolerance judgment according to fault direction and fault distance information calculated with currents and voltages measured from electric elements of local substation and collected from the adjacent substations.The results of a case study show that no uncorrected judgment happens to CSBPS in case any one of protection elements mal-operates,fails to operate or loss of fault information.The proposed algorithm is simple and reliable with good fault-tolerance capability.
同期刊论文项目
同项目期刊论文
A Load Parameter Identification Method Based On Wide Area Trajectory Sensitivity. International Jour
Optimization and coordination of wide-area damping controls for enhancing the transfer capability of
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