The historical data of blackout caused by cascading failures in North China power grid is analyzed and calculated, and the results indicate that the proposed method is effective.
对华北电网连锁故障大停电事故的历史数据进行了分析计算，结果表明了本文方法的有效性。
Finally, the simulation results obtained in the North China power grid have proved the validity of the theoretical analysis and the feasibility of the proposed disturbance identifying method.
最后，通过华北电网扰动仿真进一步明确扰动的特征，验证了理论分析的正确性和利用所提出的方法区分电网扰动的有效性。
Through analysis of lightning failures of North China Power Grid, we have known the important anti-lightning transmission lines and the important anti-lightning field of the transmission lines.
通过对华北电网公司直属单位近年来的雷击故障统计分析，掌握了防雷重点线路和线路的重点防雷区段。
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