基于内模控制的永磁同步电动机调速系统设计  

Design of Speed Control System Based on Internal Model Control for PMSMs

作　　者：李运德[1] 张淼[1] 孙兴中[1] 

机构地区：[1]广东工业大学,广东广州510006

出　　处：《微特电机》2010年第5期56-59,66,共5页Small & Special Electrical Machines

摘　　要：针对永磁同步电动机伺服系统高性能的控制要求,提出一种基于内模控制技术的永磁同步电动机控制策略。设计的内模控制器具有结构简单、直观和容易调节等特点,通过使用内模控制技术设计电流环,改善电流环的性能;在电流环的基础上,再用内模控制技术设计速度控制器,抑制速度波动;利用构建仿真模型对该调速系统进行仿真研究。结果表明:用内模控制结构设计的调速系统有转速超调量低、转矩脉动小和响应速度快的优点,明显改善了系统的跟随性能和抗扰性能,证明了该控制策略的有效性。A internal model control （IMC） strategy was proposed for the high-performance requirements of PMSM servo system to strengthen the anti-disturbance capability and improve the system robustness. Desired features for the IMC such as simple intuitive structure and easy regulation were fully achieved. The IMC was used to improve the current loop, then to design the speed controller and inhibit speed fluctuation based on the current loop ;finally, the speed control system was analyzed by establishing a simulation model. The results show that the IMC technique is excellent with the low overshoot, small torque ripple and timely response, and that it obviously improves the tracking performance and the disturbance rejection performance of system. The simulation results prove that the control strategy is effective.

关 键 词：永磁同步电动机 内模控制 电流调节器 转速调节器 

分 类 号：TM341[电气工程—电机]