대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1999년도 추계학술대회 논문집 학회본부 A
- /
- Pages.398-402
- /
- 1999
인버터-유도전동기 구동시스템의 소음 저감을 위한 PWM 방식
A PWM Strategy for Noise Reduction of Inverter-Induction Motor Drive System
- Seo, Young-Min (Dankook University) ;
- Lee, Ju-Hoon (Dankook University) ;
- Yoon, In-Sik (Dankook University) ;
-
Park, Young-Jeen
(Wonju National College) ;
- Hong, Soon-Chan (Dankook University)
- 발행 : 1999.11.20
초록
In PWM inverter fed traction motor drive systems, the switching frequency is restricted and thus the electromagnetic acoustic noise is generated. To reduce such an audible noise, we propose the modified RSF(Randomized Switching Frequency)-PWM method. In the proposed RSF-PWM method, both triangular wave and sawtooth wave are used in one period as carrier waves. Because the proposed method has inherently the same property as sinusoidal PWM method, there is no problem of linearity. To verify the validity of the modified RSF-PWM method, computer simulations are carried out.
키워드