基于经验模态分解及近似熵的输电线路单相自适应重合闸

Single-Phase Adaptive Reclosure of Transmission Lines Based on EMD and Approximate Entropy

根据经验模态分解和近似熵算法,提出了一种针对输电线路单相接地故障的故障类型诊断方法,该方法具有一定的抗干扰能力,可以快速判断故障类型,以提高重合闸成功率。线路故障仿真结果验证了该方法的有效性和实用性。

On the basis of empirical mode decomposition （EMD） and approximate entropy, a new approach to diagnose the fault type for transmission line in single-phase grounding fault is proposed. The method has anti-interference ability, can diagnose the fault type rapidly and improve the success rate for reclosure. Simulation results show that the method is valid and practical.