Features of the series-connected device

The series-parallel device includes the characteristics of series and parallel. The power system includes an engine, a generator, and an electric motor. According to different booster devices, it is divided into two types: engine-based and motor-based. In the engine-based form, the engine is the main power source and the motor is the auxiliary power source; in the motor-based form, the engine is the auxiliary power source and the motor is the main power source. The advantage of this structure is convenient control, but the disadvantage is that the structure is more complicated.