基于SIMULINK的永磁同步电机控制系统的仿真设计毕业论文设计.doc

基于SIMULINK 的永磁同步电机控制系统的仿真设计 中文摘要 在MATLAB/SIMULINK中建立独立的功能模块主要有：PMSM本体模块、矢量控制模块、电流滞环控制模块、速度控制模块等。同时进行功能模块的有机整合，搭建PMSM控制系统的仿真模型采用双臂环控制，速度环采用PI控制，电流环采用滞环电流控制。仿真结果证明了该方法的有效性，同时该模型也适用于验证其他控制算法的合理性，为实际电机控制系统的设计和调试提供的新的思路。 为了实现高性能的电流环控制，对比了常规电流滞环控制和三角波载波比较方式的电流滞环控制。在MATLAB中搭建了两种电流滞环控制方式的仿真模型，通过仿真得出采用常规电流滞环控制对系统的整体性能影响比较大，而采用三角载波比较方式的电流滞环控制容易获得良好的控制效果。采用三角载波比较方式的电流滞环控制的仿真结果进一步验证了本文分析的正确性，并且为系统的整体设计提供了理论基础。 关键词：永磁同步电动机；SIMULINK；电气系统模型库 Simulation of control system for the Permanent Magent Synchronous Abstract The paper as the example of the control system of permanent synchronous motor, mainly introduces how to get the simulation of AC driven system under the environment of SIMULINK by using the toolbox of power system, then discusses the effect of adjuster PI on the revolution during suddenly changed load. In MATLAB/SIMULINK it establishes the independent function modules; PMSM body module, vector control module, the current hysteresis control, speed control module, function module and so on. At the same time, it integrates the function module and establishes the simulation module of PMSM control system. this system adopts double closed-loop control system, the PI control the speed loop, the sluggish loop electric current controls electric current loop the simulation result proves the effective method of the indeperdent function modules. This model also applies to test and verify the reasonableness of thought for both design of practical electrical engineering control system and debugging. For the sake of high-performance current-loop in position servo system, we studied general hysteresis-band current-control and triangular carrier wave hysteresis-band current-control. Simulation models of the two mode were build in MATLAB, by the simulation analysis, we can know that general hysteresis-band current-control will seriously influence on performance of system, and triangular carrier wave hysteresis-band current-control can be used for good control performance. When triangula