Brushless DC Motor
Atef Saleh Othman Al-Mashakbeh
Department of Electrical Engineering Tafila Technical University
P.O. Box 179, Tafila – Jordan
Abstract
Brushless DC (BLDC) motors are one of the electrical drives that are rapidly gaining popularity, due to their high efficiency, good dynamic response and low maintenance. In this paper, the modeling and simulation of the BLDC motor was done using the software package MATLAB/SIMULINK. A speed controller has been designed successfully for closed loop operation of the BLDC motor so that the motor runs very closed to the reference speed. The simulated system has a fast response with small overshoot and zero steady state error.
無(wú)刷直流（BLDC）電機(jī)的電驅(qū)動(dòng)器正在迅速普及，由于其高效率，良好的動(dòng)態(tài)響應(yīng)和低維護(hù)1。本文的建模和仿真的無(wú)刷直流電機(jī)是用軟件MATLAB / SIMULINK的。一個(gè)速度控制器已經(jīng)專為無(wú)刷直流電機(jī)閉環(huán)操作成功，使電機(jī)的運(yùn)行速度非常封閉的參考速度。該模擬系統(tǒng)具有超調(diào)量小和零穩(wěn)態(tài)誤差的快速反應(yīng)。
關(guān)鍵詞：PID控制器，直流無(wú)刷電機(jī);數(shù)學(xué)模型;
1．介紹
20世紀(jì)80年代末以來(lái)的永磁無(wú)刷電機(jī)新的設(shè)計(jì)概念已developed.The永磁無(wú)刷電機(jī)可分為點(diǎn)名的反電動(dòng)勢(shì)波形，它可以在任何無(wú)刷交流（雙語(yǔ)）或無(wú)刷直流（BLDC操作）模式。通常雙語(yǔ)電機(jī)有一個(gè)正弦反電動(dòng)勢(shì)波形和直流無(wú)刷電機(jī)具有梯形反電動(dòng)勢(shì)。在現(xiàn)代工業(yè)生產(chǎn)的電機(jī)無(wú)刷直流（BLDC）電機(jī)正在迅速獲得普及。無(wú)刷直流電機(jī)應(yīng)用于行業(yè)，如家用電器