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RPWM기법을 이용한 세탁기용 유도전동기 구동 시스템의 소음 및 진동 저감
이원철,김이훈,배우리,장봉안,양하영,원충연,Lee, Won-Chul,Kim, Lee-Hun,Bae, Woo-Ri,Jang, Bong-An,Yang, Ha-Yeong,Won, Chung-Yuen 한국조명전기설비학회 2005 조명·전기설비학회논문지 Vol.19 No.3
본 연구에서는 유도전동기 구동 시스템에서 새로운 RPWM 방식을 제안하였다. 유도전동기 구동 시스템에서 발생하는 소음을 줄이기 위하여 공간벡터 RPWM방식에 기반을 둔 RPWM방식을 제안하였다. 제안된 RPWM방식을 드럼 세탁기에 적용하여 세탁기에서 발생하는 소음과 진동을 측정하였으며 그 결과를 비교하였다. 제안된 방식의 타당성을 입증하기 위하여 시뮬레이션과 실험을 수행하였다. The random pulse width modulation(RPWM) in inverter-fed induction motor drive is presented. This paper describes a RPWM method based on space vector PWM strategy for shaping the switching noise spectrum in such a way it can merge with the natural system noise. To verify the validity of the proposed RPWM scheme, the experiment based on the DSP56F803 microprocessor was executed finally, the simulation and experimental results will be given to demonstrate the effectiveness of the unposed RPWM scheme.
정정길(Jeong Jeong-Gil),이원철(Lee Won-Chul),배우리(Bae Woo-Ri),원충연(Won Chung-Yuen),장봉안(Jang Bong-An),양하영(Yang Ha-Yeong) 한국조명·전기설비학회 2005 한국조명·전기설비학회 학술대회논문집 Vol.2005 No.5월
In home appliances, electric energy is optimally controlled by using power electronics technology, creating a comfortable environment in terms of energy saving, low sound generation, and reduced time consumption. Usually simplicity and robustness make the three phase induction motor attractive for use in domestic appliance, including washing machines. Two main types of domestic washing machine have evolved. We focus on the front loading machine favored in Europe, which has a horizontal drum axis. With the advent of electronic control, universal motor, with a phase controller operating directly from the ac source, has become popular in washing machine. The efficiency improvement in home appliances is very important for customers. Induction motor efficiency can be improved by means of loss reduction, which can be realized by motor selection and design, improvement of the waveforms supplied by power inverter, utilizing a suitable control method. So this paper describes the architecture and feature of washing machine fed induction motor drive under minimizing losses vector control.