基于磁场定向的PMSM电机级联PI控制器设计  

Design of PMSM Motor Cascade PI Controller Based on FOC

作　　者：杨平[1] 

机构地区：[1]沙洲职业工学院,江苏张家港215600

出　　处：《沙洲职业工学院学报》2017年第1期1-6,共6页Journal of Shazhou Professional Institute of Technology

基　　金：2014年张家港科技支撑计划(工业)(ZKG1423)

摘　　要：介绍了PMSM同步电机磁场定向控制FOC(Field Oriented Control)的基本原理,建立了PMSM同步电机磁场定向多级联PI控制数学模型。为加强控制模型的抗干扰能力,系统在速度控制环、电流控制环和角度控制环前端分别引入带零点消除PI调节模块。同时为加强控制系统的稳定性和控制精度,通过单独控制电机电流的磁通(d轴)和转矩(q轴)分量控制实现磁场定向控制、磁极位置估算和速度跟踪。利用NXP公司强大的MCAT在线调试、仿真功能,对其电流、速度和磁极位置估算进行测试与仿真,验证磁场定向多级联PI控制数学模型的正确性。测试、仿真结果表明,该数学模型较好地反映了PMSM同步电机运行特性,在0V到电机额定电压全电压范围内,PMSM电机速度响应、跟踪,电流特性,磁极估算等,均有较好的控制效果,验证了控制模型的有效性。This paper introduces the basic principle of FOC（Field Oriented Control） for PMSM synchronous motor and derivates a mathematical model oriented multi-cascade PI（Proportional integral） coercion for PMSM（permanent magnet synchronous motor）. PI adjustment module with zero elimination is introduced in the front of speed control loop, the current control loop and the angle control loop in order to enhance the anti-jamming capability of the control model. In order to achieve FOC stability and accuracy of system, the motor current flux（d axis） and torque（q axis） component are controlled separately by the magnetic pole positioning estimation and speed tracking. By means of NXP＇s powerful MCAT online debugging and simulation function, the current, velocity and magnetic pole positioning estimation are tested and simulated, verifying the correctness of the magnetic field orientation, multi-cascade PI control and mathematical model. The simulation results show that the mathematical model is of a better control effect in the reflection of the operating characteristics in the range of 0V to the rated voltage of PMSM synchronous motor, in the response of PMSM speed, in the tracking, current characteristics and magnetic pole estimation.

关 键 词：磁场定向控制 多级联PI控制 离散变换 在线仿真 

分 类 号：TM85[电气工程—高电压与绝缘技术]