Novel auxiliary converter topology system

The invention provides a novel auxiliary converter topology system, which comprises an alternating current auxiliary synchronous motor and a storage battery, and the alternating current auxiliary synchronous motor drives a diesel engine to work; the storage batteries comprise a first storage battery and a second storage battery; the AC auxiliary synchronous motor is connected with the DC/DC, the DC/DC is connected with the first storage battery, the second storage battery is connected with the first AC/DC through the switch, the first AC/DC is connected with the two DC/ACs connected in parallel, and the two DC/ACs connected in parallel are respectively connected with the loaded air compressor; and the diesel engine is difficult to start due to the fact that the load torque of the diesel engine is large and can change along with the change of the rotating speed. According to the scheme, a diesel engine variable-frequency starting mode is adopted, so that the diesel engine can be well started. 本发明提供了一种新型辅助变流拓扑系