Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1990.07a
- /
- Pages.397-400
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- 1990
Carrier Random Modulation Mothod for PWM Inverters
PMW 인버터를 위한 캐리어 랜덤 변조방식
- Joe, Jee-Won (Dept. of Electrical Eng. Kon-Kuk Univ.) ;
- Lee, Jeong-Min (Dept. of Electrical Eng. Kon-Kuk Univ.) ;
-
Choe, Gyu-Ha
(Dept. of Electrical Eng. Kon-Kuk Univ.)
;
- Kim, Han-Sung (Dept. of Electrical Eng. Kon-Kuk Univ.)
- Published : 1990.07.05
Abstract
All the existing PWM voltage-controlled inverters, regardless of the advantages of the operation, have produced serious problems such as acoustic noise. In this raper, the PMW technique for acoustic noise reduction is implemented using randomly modulated carrier modulation. By modulating the triangular carrier in sinusoidal PWM with band-limited white noise, it is shown that the acoutic noise level and spectral density is reduced in a tone. This method shows great merit in application the AC motor drive system to particularly environment.
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