直流無刷稀土永磁電動(dòng)機(jī)調(diào)速系統(tǒng)的設(shè)計(jì)

直流無刷稀土永磁電動(dòng)機(jī)調(diào)速系統(tǒng)的設(shè)計(jì)

直流無刷稀土永磁電動(dòng)機(jī)調(diào)速系統(tǒng)的設(shè)計(jì)
摘 要：無刷直流電動(dòng)機(jī) (BLDCM)因?yàn)榫哂辛己玫男阅堋⒖刂品奖愫透叩男詢r(jià)比等優(yōu)點(diǎn)，所以一直得到很廣泛的應(yīng)用。本文介紹了永磁無刷直流電動(dòng)機(jī)速度控制的一種方案，及當(dāng)前無刷直流電動(dòng)機(jī)控制的發(fā)展趨勢(shì)和常見的新型控制方法。最后采用端電壓過零檢測(cè)法和預(yù)定位起動(dòng)方法，實(shí)現(xiàn)了基于 TMS320F240 DSP的無位置傳感器永磁無刷直流電動(dòng)機(jī)速度控制。
在系統(tǒng)的硬件設(shè)計(jì)中，設(shè)計(jì)了以TMS320F240數(shù)字信號(hào)處理器為核心處理器的最小系統(tǒng)。同時(shí)也設(shè)計(jì)了信號(hào)采集電路，用于測(cè)量控制系統(tǒng)所需的三個(gè)定子端電壓信號(hào)和相電流反饋信號(hào)。
在系統(tǒng)的軟件設(shè)計(jì)中，主要完成了電動(dòng)機(jī)的起動(dòng)及無傳感器速度閉環(huán)控制兩大功能。用DSP成功實(shí)現(xiàn)PWM輸出信號(hào)、信號(hào)采集及移相控制等功能。
關(guān)鍵詞：數(shù)字信號(hào)處理器（DSP）；無刷直流電動(dòng)機(jī)；轉(zhuǎn)子位置傳感器；
反電動(dòng)勢(shì)；速度控制The design of speed control system of Rare-earth Permanent Magnet Brushless DC Motor
Abstract：The Brushless DC Motor(BLDCM) has been widely used for many years because of its excellent performance, easy control and high cost effectiveness.This paper introduces the control of Brushless Permanent Magnet DC Motor ,and introduces the future of the control BLDCM; and some new methods in controlling DC motor. In the end, a complete solution proposal in the paper. It deals with sensor less alternative. To position sensors for speed control in Brushless Permanent Magnet Dc Motor based on TMS320F240,using the back-EMF. Commutation method and the start method by means of rotor pre-setting.
TMS320F240DSP has been designed as the main micro-controller during hardware design. Minimum system. Circuits for signal collection have been given to measure the stator terminal voltage and current value.
When designing the software, the main two functions, startup of the motor and speed closed loop sensor less control are complete. Using DSP, the PWM signal, the measurement of voltage and current signals and phase shifting are successively presented here.
Keywords： DSP(Digital Signal Processing); BLDCM(brushless direct current motor);Rotor Position Sensor; BEMF(Back Electromagnetic Force);Speed Control.

【直流無刷稀土永磁電動(dòng)機(jī)調(diào)速系統(tǒng)的設(shè)計(jì)】相關(guān)文章：

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