宁波大学学报(理工版)
寧波大學學報(理工版)
저파대학학보(리공판)
JOURNAL OF NINGBO UNIVERSITY(NSEE)
2014年
2期
59-63
,共5页
赵鹏飞%俞建定%吴鑫%骆国庆
趙鵬飛%俞建定%吳鑫%駱國慶
조붕비%유건정%오흠%락국경
反电动势%脉宽调制%直流电机%闭环控制
反電動勢%脈寬調製%直流電機%閉環控製
반전동세%맥관조제%직류전궤%폐배공제
back-EMF%PWM%DC motor%closed-loop control
提出一种利用直流电机运转过程中的反电动势作为反馈参数的控制方案,采用分时产生PWM 输出的方法,实现了直流电机无速度传感器闭环控制系统。该系统由主控电路、功率驱动电路、采样电路、过流保护电路等模块组成。经验证,该系统调速精度高、简单可靠、经济实用,可供直流电机速度控制系统设计参考。
提齣一種利用直流電機運轉過程中的反電動勢作為反饋參數的控製方案,採用分時產生PWM 輸齣的方法,實現瞭直流電機無速度傳感器閉環控製繫統。該繫統由主控電路、功率驅動電路、採樣電路、過流保護電路等模塊組成。經驗證,該繫統調速精度高、簡單可靠、經濟實用,可供直流電機速度控製繫統設計參攷。
제출일충이용직류전궤운전과정중적반전동세작위반궤삼수적공제방안,채용분시산생PWM 수출적방법,실현료직류전궤무속도전감기폐배공제계통。해계통유주공전로、공솔구동전로、채양전로、과류보호전로등모괴조성。경험증,해계통조속정도고、간단가고、경제실용,가공직류전궤속도공제계통설계삼고。
In this paper, a new control scheme is proposed for sensor-less closed-loop control based on Back-EMF generated by a running DC motor. The PWM in the design is produced on time-sharing, closed-loop control systems of DC motor without speed sensor. The presented system mainly consists of main control circuit, power driver circuit, sampling circuit, over-current protection circuit. The design is validated by the high speed accuracy system simplicity and reliability, as well as low cost and practicality.