基于改进模糊PI控制器的PMSM矢量控制系统仿真  

PMSM Vector Control System Simulation Based on Improved Fuzzy PI Controller

作　　者：胡堂清 张旭秀 HU Tang-qing;ZHANG Xu-xiu(School of Electrical and Information Engineering,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学电气信息工程学院

出　　处：《自动化与仪表》2019年第6期91-95,共5页Automation & Instrumentation

基　　金：国家科技支撑计划资助项目(2015BAF20B02);国家自然科学基金资助项目(61471080,61201419)

摘　　要：PMSM具有非线性、强耦合、参数时变的特点,传统PI控制器存在参数不能跟随系统状态改变而做出自整定的问题,模糊PI控制器的控制系统仍存在超调量大,震荡,转矩脉动较大等问题。针对上述问题,该文给出了一种改进的模糊控制规则,将输入信号模糊化,进行模糊规则推理,使模糊控制器可以输出更适合系统当前状态的调整量,实现对模糊PI控制器的优化。仿真结果表明,采用改进模糊PI控制调速系统,有更快的响应速度,而且超调量小,抗干扰能力强,使系统的动、静态特性有明显的提升,验证了该模糊控制规则的可行性及优越性。PMSM is characterized by non-linearity,strong coupling and time-varying parameters.The parameters of tra-ditional PI controller cannot be self-tuning due to the change of system state.The control system of fuzzy PI con-troller still has problems such as large overshoot,vibration and torque ripple.In order to solve the above problems,an improved fuzzy control rule is proposed in this paper.The input signal is fuzzified and the fuzzy rule reasoning is carried out,so that the fuzzy controller can output the adjustment quantity more suitable for the current state of the system and realize the optimization of the fuzzy PI controller.Simulation results show that the improved fuzzy PI control speed regulation system has faster response speed,small overshoot,strong anti-interference ability,and signifi-cantly improves the dynamic and static characteristics of the system,which verifies the feasibility and superiority of the fuzzy control rules.

关 键 词：永磁同步电机 矢量控制 改进模糊PI控制 改进模糊控制规则 仿真 

分 类 号：TM341[电气工程—电机]