基于 S-函數(shù)的無刷直流電機(jī)系統(tǒng)建模研究

本文在分析無刷直流電機(jī)系統(tǒng)數(shù)學(xué)模型的基礎(chǔ)上，提出了無刷直流電機(jī)控制系統(tǒng)仿
真建模的新方法。在Matlab/Simulink 中，通過S-函數(shù)獨(dú)特的結(jié)構(gòu)，建立獨(dú)立的功能模塊，如電動(dòng)機(jī)本體模塊、反電動(dòng)勢產(chǎn)生模塊、速度PI 控制模塊、電流PI 控制模塊等，再進(jìn)行功能模塊的有機(jī)整合，搭建無刷直流電機(jī)控制系統(tǒng)快速高效的仿真模型。該方法成功地應(yīng)用于電動(dòng)車驅(qū)動(dòng)系統(tǒng)的設(shè)計(jì)仿真。
關(guān)鍵詞：無刷直流電動(dòng)機(jī)；S-函數(shù)；仿真建模
Abstract: Based on the mathematical model of the Brushless DC motor (BLDCM), a novel
method for modeling and simulation of BLDCM has been proposed. In Matlab/Simulink,
S-function is categorized into three special structures，then the isolated functional blocks，such as motor block，speed PI controller block, current PI controller block，EMF generated block etc have been modeled By the organic combination of these blocks，the model of BLDCM control system can be established efficiently. This novel method is succeed in designing and modeling actual BLDCM Drives for Electrical bicycle．
Key works: Brushless Direct Current Motor(BLDCM),S-function, Modeling and Simulation