Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07f
- /
- Pages.2534-2536
- /
- 1999
An Improvement of Sensorless Driving Performance for Brushless DC Motor Using Variable PWM Switching Frequency
가변 PWM 스위칭 주파수를 이용한 브러시리스 직류전동기의 센서리스구동 특성개선
- Woo, Hyuk-J. (Sunchon Nat'l Univ.) ;
-
Song, Myung-H.
(Sunchon Nat'l Univ.)
;
-
Park, Kyu-N.
(Sunchon Nat'l Univ.)
;
- Yeo, Hyeong-G. (Doowon Technical College) ;
-
Kim, Kyoung-M.
(Yosu Nat'l Univ.)
- Published : 1999.07.19
Abstract
This paper suggested a new sensorless driving strategy for brushless de motor which can improve the conventional degradation of highspeed operating performances, lowspeed operating performances and starting performances caused by applying general single pwm switching frequency. By varying PWM switching frequency during operating time, the proposed method can get some desired upper performances. For confirming the validity of the proposed method, the sensorless driving system is implemented with an rPM module and 87c196MC micro controller.
Keywords