1、I 摘 要 本文首先介绍了永磁同步电机的国内外发展状况 , 然后 介绍了永磁同步电机的结构及原理 , 接着 建立了永磁同步电机的数学模型 , 并在 此 基础上用 MATLAB进行了仿真 , 最后 进行了仿真 及 仿真结果的分析。 永磁 同步电机是具有非线性、强耦合性、时变性的系统 , 在运行过程中 会 受到负载扰动等 多 因素影响。 以往 研究永磁同步电机的 做法是在硬件上搭建一个平台 进行模拟 , 但是这样在做实验中难免会造成一些损失 , 而 且硬件上的反馈会比较长研究周期长 。 目前 在国内外关于永磁同步电机 调速系统 的研究现状上来讲 ,基于 MATLAB 环境下仿真模型 的构建 下 进
2、行研究 , 这 可 极大的缩短研究周期 和 研究成本 。 在利用 MATLAB 仿真模型研究永磁同步电机时 , 我们可以把那些扰动因数做成模拟信号给予模型 , 这样可以准确的定性分析实验得出结论。 关键字:永磁同步电机 , 空间矢量调制 , MATLAB 仿真 , 数学模型 。 II ABSTRACT In the first, this paper introduces the domestic and international development status of Permanent Magnet Synchronous Motor(PMSM), gives a explanati
3、on about its basictheory, structure. Then it builds a mathematical model, and uses MATLAB to simulate that model. The PMSM is a nonlinear, strong-coupling and time-varying system, so in the operation process, it will be influenced by many factors such asload disturbance. Therere, it is necessary to
4、take action when researching the control method of PMSM. The former research method is setting up a platform on hardware to perform experimensbut it is undesirable, because it often cause some loss, and the feedback cycle is longer than research cycle. As fordomestic and international current situat
5、ion on the research of PMSM, it is obvious that researching under the simulation model created by MATLAB could greatly reduce the cost and cycle of researchment. When using MATLAB to build simulation model on the research of PMSM, we can transform these disturbance factors into analog signal, making a qualitative analysis to draw conclusions from them. Keywords: PMSM, SVPWM, MATLAB simulation, mathmatical model