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60kV双断口直流真空断路器换流参数多目标优化
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摘要
本文基于基尔霍夫定律对双断口直流真空断路器开断过程经常微分形式描述,并利用四阶龙格—库塔法对其数值计算。运用遗传算法,结合数值计算结果,分别以开断性能最佳、换流回路成本最低以及弧后鞘层贯穿间隙发展时间最短为优化目标,对换流回路参数进行优化,为不同运行工况下确定换流电感与换流电容提供参考。同时,将优化结果代入线路中进行仿真分析,得到各支路断口恢复电压和弧后电流的发展特性,对比分析各优化参数下仿真结果。
引文
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