基于模糊控制的无刷直流电机建模仿真新方法  

A New Approach to the Modeling and Simulation of Brushless DC Motors Based on Fuzzy Control

作　　者：罗维玲[1] 刘建成[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410075

出　　处：《计算机工程与科学》2009年第8期147-149,155,共4页Computer Engineering & Science

基　　金：湖南省自然科学基金资助项目(04JJ6036)

摘　　要：为提高无刷直流电动机(BLDCM)控制系统的精度,本文根据电机的数学模型,基于Matlab仿真平台构建了BLDCM电流、转速模糊PI复合控制的双闭环控制系统的仿真模型。该模型采用了一种基于分段线性化的思想,利用Simulink中的Look-Up Table对梯形波感应电动势和电磁转矩进行快速建模的方法。仿真结果表明,该模型准确易行、控制精度高,为实际BLDCM控制系统的设计和调试提供了有效的工具。In order to improve the precision of the Brushless I3（3 motor （BLI^M） control systems, a simulative model is built on a timing system of double closed loops with current and the speed fuzzy-PI control in Matlab by analyzing the corresponding mathematical model. Based on the method of Piecewise Linear Curves, the Look-Up Table block in Simulink is applied to quickly realizing the modeling of trapeziform-wave inductive EMF and Electromagnetic Torque. The results show that the modeling method has a higher control precision and can easily be applied, so it offers effective methods and means to designing and debugging actual motors.

关 键 词：无刷直流电动机 建模仿真 模糊PI复合控制 分段线性化 

分 类 号：TM330.3[电气工程—电机]