Title :
Control of brushless DC motor with an AVR microcontroller
Author_Institution :
Sch. of Electron. & Inf. Eng., Xianning Univ., Xianning, China
Abstract :
This paper illustrates the basic work principle of a brushless DC motor and presents its control method. According to the method, a control system of a brushless DC Motor is designed using an AVR microcontroller. Design of the control system includes hardware circuit designing and software programming. The hardware structure of the control system consists of a microcontroller ATmega64, power supply circuit, position detection circuit, current chopper circuit, power driving circuit, display circuit and keyboard circuit and so on. The software is developed by c program language. The software includes main program, initialization program, PWM duty ratio reload program, speed calculation program, closed-loop PID regulation program, interrupt service program, LCD display program, keyboard program etc. The experiment result shows that the system is with an excellent dynamic and static performance. Its operation is reliable.
Keywords :
brushless DC motors; closed loop systems; control system synthesis; electric current control; machine control; microcontrollers; position control; three-term control; ATmega64 microcontroller; AVR microcontroller; C language; LCD display program; PWM duty ratio reload program; brushless DC motor control; closed-loop PID regulation program; control system design; current chopper circuit; display circuit; hardware circuit design; interrupt service program; keyboard circuit; keyboard program; position detection circuit; power driving circuit; power supply circuit; software programming; speed calculation program; Brushless DC motors; MOSFET circuits; Microcontrollers; Pulse width modulation; Software; ATmega64; PID; brusless DC motor; microcontroller;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768671