基于切换系统理论的永磁无刷电动机控制策略  

Permanent Magnet Brushless Motor Control Strategy Based on Switching System Theory

作　　者：吕永健[1] 李飞[1] 李子龙[1] 

机构地区：[1]空军工程大学,陕西西安710038

出　　处：《微特电机》2011年第8期1-3,7,共4页Small & Special Electrical Machines

摘　　要：切换系统是描述混杂动态系统的重要模型之一,采用不同的模态和切换规则可以更好地刻画一个实际复杂动态系统的运行轨迹。基于切换系统理论,结合正弦波和方波电流驱动的永磁无刷电动机的各自优势,提出了按输出状态反馈切换的永磁无刷电动机切换控制策略,建立了切换系统的线性化模型并对其稳定性进行了分析。仿真和实验结果表明,切换控制系统运行稳定,可有效地提高电机全速度范围内的运行效率和性能。The switching system is one of the important models which describe the hybrid dynamical systems.Different models and the switching rules are adopted to better describe the motion of the actual complicated systems.Combined with advantages of the PMSM and BLDCM,the paper proposed the switching control strategy for brushless permanent magnet motor with the rule of output feedback based on switching system theory.Then the linear model of the switching control system was obtained and the stability of it was analyzed.The results of the simulation and the experiment show that the switching control strategy is stable and could effectively improve the efficiency and the function of the motor in full speed range.

关 键 词：永磁无刷电动机 切换系统 建模 稳定性分析 

分 类 号：TM341[电气工程—电机] TM351