单相接地故障电流全补偿PSIM仿真  

Simulation of Single-phase Earth Fault Current Fully Compensation in PSIM

作　　者：程玉凯 CHENG Yukai(Zhangzhou Power Supply Company,State Grid Fujian Electric Power Company,Zhangzhou,Fujian 363000,China)

机构地区：[1]国网福建电力公司漳州供电公司,福建漳州363000

出　　处：《宜宾学院学报》2020年第12期20-23,共4页Journal of Yibin University

摘　　要：针对电网单相接地故障率高的问题,提出一种对单相接地故障电流实现全补偿的方法:通过预测单相接地故障电流,利用有源逆变技术跟踪单相接地故障电流,在零序电路中注入与故障电流大小相等、方向相反的电流,达到完全补偿单相接地故障电流的目的.在PSIM仿真平台搭建模型进行的仿真模拟,验证了所提方法的正确性和科学性.Aiming at the problem of high fault rate of single-phase grounding of power network,a method of full compensation for the single-phase grounding fault current was put forward.Active invert technology was used to track the single-phase earth fault current which is prediction of single-phase earth fault current,thus equal-in-size,and opposite-direction current was injected into zero sequence circuit.The goal of complete compensation of single-phase grounding fault current was achieved.A model simulation in PSIM simulation platform was built,which verifies the correctness and scientific nature of the proposed method.

关 键 词：单相接地故障 有源补偿 PSIM仿真验证 

分 类 号：TM762[电气工程—电力系统及自动化]