Series multi-pulse rectifier using DC-side passive harmonic suppression method

The embodiment of the utility model discloses a series multi-pulse rectifier using a direct-current side passive harmonic suppression method, which comprises an input inductor, a phase-shifting transformer, a first three-phase full-bridge rectifier circuit, a second three-phase full-bridge rectifier circuit, a first direct-current side capacitor, a second direct-current side capacitor, a load anda harmonic injection circuit, the harmonic injection circuit is composed of a single-phase transformer and a single-phase full-bridge rectification circuit. The single-phase transformer is composed ofa primary winding and a secondary winding. The output end positive electrode of the single-phase full-bridge rectification circuit is connected with the negative electrode of the second three-phase full-bridge rectification circuit, and the output end negative electrode is connected with the negative electrode of the load. According to the utility model, harmonic waves in input voltage and current of the rectifier are sup