一种用于微电网构网型逆变器的同步小交流信号注入孤岛检测方法

Islanding detection is of great importance for the microgrid in order to change the control objectives and to avoid unsynchronized reclosure. Active islanding detection methods based on impedance measurement have very small nondetection zone in the single-inverter system, but require the coordination of the perturbation current injected by each inverter in the microgrid consisting of multiple inve...