异步电机矢量控制调速系统的高效运行和磁通的快速控制

High efficiency driving system and fast flux control for induction motor having vector control

介绍了用于大功率伺服系统和电动汽车的高效率异步电机驱动系统。在直接磁场定向矢量控制异步电机变频调速系统中，提出了利用磁链预测值的高效运行和磁通快速控制方法。该方法根据快速磁通控制模式和稳态最高效率运行模式决定电机的励磁电流分量。它的主要优点是系统在稳态运行时具有最高效率，而动态性能未受到影响。实验和仿真结果表明，在负载转矩和电机速度变化时，该方法可以使系统获得高效运行和良好的速度响应。

A high efficiency driving system for high horse power servo system and electric vehicle with induction motor has been developed. The method for high efficiency and fast flux control of direct field oriented induction motor drives has been proposed that employs predicted flux. The flux current reference is calculated from fast flux control mode, and rotor flux control mode for maximum efficiency drive. The method ensures maximum efficiency in the steady state without degradation of the dynamic response. Simulation and experimental results for an induction motor have demonstrated that this method yields the maximum efficiency and good speed response to change in both torque and motor speed.