采用频率调制串联谐振变换器的两级单相AC/DC变换器中二次谐波的有源滤波

Series resonant converters (SRCs) allow an efficient, galvanically isolated, and load-independent dc/dc conversion, and can be used as isolation dc/dc units in two-stage single-phase ac/dc converters. However, in such systems, the single-phase active front end unit injects an undesired second-order harmonic component into the dc side, which requires proper filtering. Unlike other resonant converte...