模糊PI复合控制器在永磁同步电机中的应用  

Application of Compound Fuzzy-PI Controller in PMSM

作　　者：李国志[1] 任小洪[1] 任兵[1] 

机构地区：[1]四川理工学院自动化与电子信息工程学院,四川自贡643000

出　　处：《机床与液压》2013年第9期51-53,共3页Machine Tool & Hydraulics

基　　金：人工智能四川省重点实验室重点项目(2010RZ002);四川省教育厅重点项目(09ZX002);人工智能四川省高校重点项目(2009RY0003);四川理工学院2011年研究生创新基金项目(y2011010)

摘　　要：以正弦波永磁同步电动机矢量控制系统为研究对象,将常规PI控制器与Fuzzy控制器相结合构成一种平滑切换模糊PI复合控制器,通过MATLAB建立正弦波永磁同步电动机矢量控制系统仿真模型,研究探讨平滑切换模糊PI控制器的设计原理和应用效果,将常规PI控制器和两种切换模糊PI控制器进行了仿真对比。仿真结果表明,对于难以建立精确数学模型的时变性、非线性的系统采用作为线性控制器的传统PI控制器并不能够获得满意的控制效果,而平滑切换模糊PI控制器则能够使系统具有更好的鲁棒性、更高的稳态精度和更快的动态响应。By taking the vector control system of Permanent Magnet Synchronous Motor （PMSM） as a research object, and put conventional PI controller and fuzzy controller together, a compound controller named smooth-switch fuzzy proportional and integration （PI） controller was constituted. A simulation model of vector control system for sine wave PMSM was established in the MATLAB, the design principle and application effect of smooth-switch fuzzy PI controller were discussed and studied, and the conventional PI control- ler and two kinds of smooth-switch fuzzy PI controller were simulated with contrast. At last, the simulation result shows that the tradi- tional PI controller is a linear controller and it can not be used to obtain satisfying control effect, which is hard to build a precise mathe- matical model of nonlinear or time-varying system, while the smooth-switch fuzzy PI controller can make the system to have better ro- bustness, higher steady precision and faster dynamic response characteristics.

关 键 词：模糊 PI 复合控制器 平滑切换 永磁同步电动机(PMSM) 

分 类 号：TM341[电气工程—电机]