基于脉冲注入的并网变流器在线电网阻抗辨识分析、设计与实现

Grid impedance information occupies a fundamental and crucial position for the operation of grid-tied converters. Consequently, accurate and fast extraction of grid impedance is vital. The impulse injection method applied under the control loop of a grid-tied converter, which is commonly used to extract linear grid impedance online, is relatively reasonable in terms of device cost, measurement spe...