无刷双馈电机原理及控制策略

摘要

Principle of Brushless Doubly-Fed Machines (BDFM) is carefully analyzed. The model of BDFM is built based on different reference frames (d-q-0 reference frame attached to the rotor axis and synchronous reference frame). Several control strategies (scalar quantity control, magnetic field oriented control,directorque control, intelligent control method)of BDFM and their advantages.disadvantages and applied rang are presented based on different mathematical models. Finally, the problem existing in research and direction of further study are pointed.%详细分析了无刷双馈发电机的基本原理,基于不同的参考坐标系(转子轴dq0坐标系和同步坐标系),建立了无刷双馈发电机不同的数学模型.依据建立的数学模型,介绍了无刷双馈发电机的几种控制策略(标量控制、磁场定向控制、直接转矩控制、智能控制方法),并指出其优缺点.最后,指出了无刷双馈发电机运行控制中存在的难点和进一步研究的方向.