【作者】 吕路；

【导师】 徐龙祥；

【作者基本信息】 南京航空航天大学 ， 机械设计及理论， 2008， 硕士

【摘要】 本文介绍了片状无轴承永磁同步电机的工作原理与控制策略,运用Matlab/Simulink对该电机进行了控制系统的仿真,形象地分析了片状无轴承永磁同步电机径向悬浮力的控制过程。在此基础上,通过对片状无轴承永磁同步电机关键技术的研究,引出本文的主要研究对象—基于SVPWM(空间矢量脉宽调制)的永磁同步电机矢量控制和基于MRAS(模型参考自适应)的永磁同步电机无传感器控制,并对以上两种方法进行了理论分析与仿真验证。研制了以智能功率模块PS21564为核心的永磁同步电机功率驱动板,并通过测试验证了该功率驱动板能满足永磁同步电机数字控制试验系统的硬件要求;编写了基于DSP-TMS320F2812的电机控制程序;在以普通永磁同步电机为控制对象的实验平台上对以上提到的两种控制方法进行了试验验证,实现了永磁同步电机的速度电流双闭环控制和无传感器转速、转角检测。试验结果表明:本文所研究的片状无轴承永磁同步电机的关键技术达到了预期的目的,为最终实现该电机的控制打下了基础。更多还原

【Abstract】 In this paper, the working principle and control strategy of bearingless permanent magnet synchronous slice motor are introduced. Control simulation upon this motor is done using Matlab/Simulink, through which control process of producing radial suspension forces are analyzed vividly. Based on the research on the key technologies of bearingless permanent magnet synchronous slice motor, the main research object—the vecotor control based on SVPWM(Space Vector Pulse Width Modulate) and sensorless control based on MRAS(Model Reference Adapt System) of common PMSM(permanent magnet synchronous motor) is educed. Then the theoretical analysis and simulation study of the tow methods mentioned above are done as well.The inverter is designed with intelligent power model-PS21564, and then, the results from the tests of the inverter indicate that this inverter can satisfy the hardware requirements of the control system opon permanent magnet synchronous motor. The DSP software program of motor control was compiled. At last, the experiment of the motor control is carried out, which proved the feasibility of the tow control strategy mentioned above. Experimental results show that the research in this paper obtains the anticipated aim, and which lay a good foundation for further study as well.更多还原