针对配电网线路故障测距快速性和准确性不足的问题,提出一种基于电磁时间反转(electromagnetic time reversal,EMTR)模拟退火优化算法的配电网故障测距.根据配电网线路参数建立镜像线路网络,以测量点处时间反转后的电流建立电流源,并注入回镜像网络,以模拟退火算法加速假设故障位置的计算.建立配电网模型并设置多种情况进行数值试验.试验结果验证了方法的有效性.
Fault Location of Distribution Network Based on EMTR Simulated Annealing Optimization Algorithm
A new fault location method for distribution network was proposed based on the simulated annealing optimization algorithm under electromagnetic time reversal(EMTR)to address the issues of insufficient speed and accuracy in fault location of distribution network lines.According to the parameters of the distribution network,a mirror line network was established,and a current source was built by means of the time reversed current at the measurement point,and then it was injected back into the mirror network;the calculation of assumed fault location was accelerated by simulated annealing algorithm;finally,a distribution network model was established and numerical experiments under various conditions are conducted.The experimental results validated the effectiveness of the method.
electromagnetic time reversalsimulated annealing algorithmdistribution networkfault location
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维普
