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直流電機(jī)監(jiān)控閉環(huán)轉(zhuǎn)速系統(tǒng)的實(shí)現(xiàn)

470894 2010-12-08 | rar | 1437 | 次下載 | 5積分

資料介紹

直流電動(dòng)機(jī)閉環(huán)轉(zhuǎn)速系統(tǒng)的突出優(yōu)點(diǎn)是在很寬的范圍內(nèi)通過(guò)改變PWM的占空比實(shí)現(xiàn)調(diào)速、快速起停、正反轉(zhuǎn)控制及制動(dòng)等。其組成的控制系統(tǒng)簡(jiǎn)單、廉價(jià)、可靠，在眾多領(lǐng)域有著極其廣泛的應(yīng)用，研制一種性能穩(wěn)定的直流電機(jī)驅(qū)動(dòng)器具有重要的意義。介紹了RS232及SPI串行總線的通訊原理,在此基礎(chǔ)上開(kāi)發(fā)了上位機(jī)監(jiān)視平臺(tái)和下位機(jī)直流電機(jī)控制電路。為了便于使用，還增設(shè)人機(jī)界面。實(shí)驗(yàn)證明,該監(jiān)控系統(tǒng)具有較高的數(shù)據(jù)傳輸速率、良好的實(shí)時(shí)性、較高的穩(wěn)定性和友好的人機(jī)對(duì)話功能。

Abstract:: ?The advantages of DC motor are velocity modulation, quickly rise-stop, forward-reverse controlling and brake etc by changing PWM in an very wide range.The DC motor closing-loop system is simple, cheap, stable and reliable, therefore its application is very extensive in many fields. It has great significance to develop a driving control system of DC motor with high performances.The principle of RS232 and SPI bus are introduced, and a DC motor controller with the RS232 and the SPI bus technology has been developed successfully. In addition, the communication circuit of master computer, the hardware circuit of slave computer and the system software have been property implemented. It has been proved that the control system has high transmission rate, nice real-time control, high reliability, convenient man-machine interface