无刷双馈电机的转差型矢量控制

针对无刷双馈电机,提出一种转差型矢量控制策略.首先,在任意旋转mt坐标系下,推导无刷双馈电机的状态空间模型;然后,给出转差型矢量控制系统设计方法,根据控制电机转子磁链给定值和转矩给定计算控制电机电流分量和转差给定,通过调节控制电机定子电流励磁分量、转矩分量对转子磁链和转矩进行控制.仿真结果显示,所提出控制策略对指令的跟踪性能和对负载的调节能力优异,对参数偏差具有鲁棒性.

Slip frequency type vector control for brushless doubly-fed machine

For a brushless double-fed machine, this paper proposes a slip type vector control strategy. Firstly, we derive the state space model in arbitrary rotating mt coordinates. On this basis, the designing method of the slip type vector control strategy is presented. According to the given rotor flux and torque, the given current components and slip of the control machine can be obtained. Then the rotor flux and total torque can be controlled by the flux current component and torque current component of the control machine. Simulation results show that the proposed strategy has excellent tracking performance and adjustment ability, and has robustness to the parameters errors.