全工况下并网变换器频率耦合导纳的精确辨识

Accurate identification for the frequency-coupling admittance of the grid-connected converters is a key factor in impedance stability analysis. However, not all information about the grid-connected converters is available, which results in the “black/grey-box” phenomenon. It is challenging to identify the frequency-coupling admittance of black/grey-box devices under all operating conditions. An ac...