Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
Title The Digital PI Control for Driving Constant Speed of Brushless DC Motor
Authors 윤신용(Yoon, Shin-Yong) ; 김현수(Kim, Hyun-Soo) ; 김용(Kim, Yong) ; 김일남(Kim, Il-Nam) ; 백수현(Baek, Soo-Hyun)
Page pp.395-402
ISSN 1975-8359
Keywords Brushless DC motor ; Constant velocity control ; Digital PI controller ; Acceleration and deceleration control
Abstract This paper presents the improvement for speed characteristics of a Brushless DC Motor (BLDCM), it was applied to digital PI control for this. The practical PID control has been widely used to velocity control of DC motors. In this paper, a digital PI controller is used in order to decrease the speed error in constant velocity control of BLDCM. A TMS320C31 DSP is used for the microprocessor of digital PI control. The method using the DSP carry out the real-time control. The DSP has the rapid calculation ability and sampling time used lms. Driving BLDCM used 50W, motor input DC 150V and rotation speed 3000rpm. When BLDCM is to approval for discretion velocity at the acceleration and deceleration driving with any load, it was a feasible for stabilization control. Therefore, the experimental results indicate the superiority and validity of the velocity control by digital PI control.