Research on current loop decoupling control of Brushless doubly-fed machine

As a new type of AC motor, brushless doubly-fed machine (BDFM) has been widely concerned in the field of new energy generation and hybrid electric vehicle (HEV) due to its obvious cost advantage. A current loop decoupling control method is proposed for BDFM. Firstly, the state space model of BDFM with arbitrary rotating coordinate system is derived. Then, the decoupling design method of the current loop based on the rotor field orientation is analyzed. Finally, simulation results show that the current decoupling control method proposed in this paper is not only simple and easy to implement, but also have good dynamic tracking performance and decoupling performance.