永磁同步电机离散准滑模变结构控制  

A Quasi-Sliding Mode Control of PMSM

作　　者：李山[1] 曹晓芹 徐鹏[1] 吴正男 丁娅[1] 王程[1] 

机构地区：[1]重庆理工大学,重庆400054

出　　处：《微特电机》2015年第3期46-48,54,共4页Small & Special Electrical Machines

基　　金：重庆市科委自然科学基金项目(cstc2012jj A40066);重庆市教委科学技术研究项目(KJ130807)

摘　　要：为了提高永磁同步电机调速系统的动态品质,解决传统PI调节器存在的抗干扰能力弱,鲁棒性差等问题,将滑模变结构控制(SMC)应用于PMSM调速系统,探讨了变结构控制在离散线性系统中存在的问题,分析了当常规的趋近律方法应用在调速系统中时存在的不足;基于一种新的离散变结构趋近律对永磁同步电机滑模速度调节器进行了设计,并与常规趋近律分别进行了试验比较。仿真实验结果表明,基于滑模变结构理论设计的调速系统具有良好的动静态特性和抗干扰的能力。将该新型趋近律用于离散系统,验证了在离散系统中同样拥有良好的仿真效果。To improve dynamic quality of permanent magnet synchronous motor（ PMSM） speed servo system,and solve the problem of PI regulator such as weak anti- jamming capability or the poor robustness,the sliding model control（ SMC） was used to PMSM. The problem of variable control for discrete- linear systems was discussed. A new discrete reaching law was presented to deal with the flaw which exits in the conventional variable structure reaching law method. The novel reaching law was applied to the PMSM speed servo system to replace the traditional PI regulator. Simulation and experimental results show that the PMSM drive system with sliding mode controller has good dynamic and static performance and robustness. Then using the reaching law method for discrete system,the system in discrete simulation also has a good effect.

关 键 词：永磁同步电机 滑模变结构控制 新型趋近律 离散变结构控制 

分 类 号：TM351[电气工程—电机]