微电网的保护方法

Method of micro-grid Protection

提出了一种用于电力电子接口的微电网系统故障保护方法,该方法能够快速可靠地检测微电网内不同类型的故障。微电网保护单元利用基于差动和对称电流分量的探测方法可以检测到微电网不同类型故障电流,控制相应的断路器动作,隔离故障区域,以保护微电网。仿真和实验结果验证了该方法的有效性。

A novel fault detection method of Micro-grid system based on differential and current sequence components was proposed.This method provides reliable and fast detection for different types of faults within the micro-grid.The fault position was detected based on differential and current sequence components by the protection units.The associated breaker was tripped to isolate the faults section from the network.The experiment and simulation results show that the method is very effective for detecting different types of faults within the micro-grid.