全数字交流永磁同步电机控制系统研究与设计

【作者】 董亚娟；

【导师】 景占荣；

【作者基本信息】 西北工业大学 ， 电工理论与新技术， 2007， 硕士

【摘要】 本文围绕交流永磁同步电机(PMSM)控制系统设计中的几个关键技术——SVPWM算法、速度电流双闭环控制方法和转子位置检测方法进行了深入的研究，并对无位置传感器交流永磁同步电机控制系统进行了研究和仿真。 本文首先研究讨论了交流永磁同步电机控制策略，详细分析了SVPWM算法原理；其次研究了速度、电流双闭环控制中速度环和电流环的算法设计及电机转子位置的检测方法，并基于凸极追踪的思想，研究了一种PMSM无位置传感器控制方法——高频电压信号注入法，其适用于凸极永磁同步电机低速和零速时的位置检测；最后，采用infineon公司的XC164CM芯片作为控制核心，设计了一套交流永磁同步电机控制系统。该控制系统的特点是，由于借助了XC164CM芯片强大的处理能力和丰富的外设，整套系统采用结构更加合理的软件实现了系统的大部分功能，省去了以往复杂的硬件电路，从而提高了系统的可靠性。 实验结果表明，该控制系统具有良好的动、静态控制特性，优于一般数模混合结构的控制器。此外，本文研究的全数字化软件伺服技术很容易被移植到其它硬件平台或通用伺服控制模块中，可广泛应用到数控机床、机器人、特种精细进给加工设备等民用领域或航天、航空等特殊领域，具有广泛的应用前景。更多还原

【Abstract】 This paper focuses on the whole digital Permanent Magnet Synchronous Motor (PMSM) controlling system based on singlechip. In-depth research is carried on, aiming at several pivotal technologies of PMSM controlling system, including SVPWM control strategy, two closed-loop control strategy of speed and current position detection. Also, a simulation model for PMSM sensorless vector control system is described in this paper.At first, the controlling strategy of PMSM and SVPWM method are discussed. Then the speed and current closed-loop control strategy and rotor position detection are studied. A sensorless control method of salient-pole permanent magnet synchronous machine (PMSM) by injecting high frequency voltage signal is presented, which is feasible for position and speed estimation at a low speed, including zero speed for salient-pole PMSM. At the end, the PMSM control system based on infineon XC164CM chip is designed. In virtue of powerful processing capacity and plenty peripherals of XC164CM, the system adopt more reasonable software architecture instead of the former complicated hardware circuit, which results in better dependability.The experiment results indicate that the controlling system has better capabilities than other digital analogy mix controllers. In addition, the software of this servo controller can be easily transplanted to other hardware platform in more fields such as numerical control machine, robot, special handling equipment, space flight and aviation etc.更多还原