基于SVPWM的PMLSM控制系统仿真与实现

A permanent magnet linear synchronous motor control system based on space vector pulse width modulation

永磁直线同步电动机(PMLSM)作为一种特种电机,在众多领域具有很大的应用潜力;新型磁性材料和控制技术的出现,为促进PMLSM更广泛的应用创造了条件.电压空间矢量脉宽调制技术(SVPWM)作为一种优化的PWM方法,在PMLSM运行控制当中具有独特的优势.基于SVPWM方法的原理,应用Matlab/Simulink建立了基于SVPWM的PMLSM调速系统仿真模型,为分析基于SVPWM的PMLSM控制系统性能提供了一个很好的仿真平台,为算法的实际应用提供了理论和技术基础.并利用XC164CM单片机实现了该控制算法,实验结果表明,基于SVPWM的PMLSM变频调速系统具有良好的起动、静态和动态控制特性,可成为一种优良的控制系统.

Permanent magnet linear synchronous motors （PMLSM） are a special type of motor with great potential in many fields. These prospects can only increase once new types of magnetic materials and control techniques have been incorporated. Among newly developed control methods, the space vector pulse width modulation （ SVPWM）, as an optimized PWM method, exhibits unique advantages when applied to PMLSM control systems. SVPWM principles were modeled and verified by Matlab/Simulink, and a speed-adjusted system for PMLSM based on SVPWM was established. This provided a good simulation platform to analyze the running characteristics of PMLSM when using an SVPWM control strategy, and builds a theoretical foundation for the practical application of this method in motor control. An XC164CM MCU was used to realize the SVPWM control algorithm, and experimental results showed that PMLSM, with a SVPWM speed-adjusted system, has good starting, static and dynamic running characteristics.