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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.
PWM 기법을 이용한 인버터-유도전동기 구동 시스템의 전도 노이즈 및 스위칭 소음 저감
박현석(Park Hyun-Seok),김이훈(Kim Lee-Hun),정정길(Jeong Jeong-Gil),천광수(Chun Kwang-Su),원충연(Won Chung-Yuen),함년근(Hahn Nyon-Kun),신한순(Shin Han-Soon) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.11
The random pulse width modulation(RPWM) on the noise and vibration abatement in inverter-fed induction motor drive is presented.<br/> This paper describes a RPWM technique based on space vector PWM strategy for shaping the switching noise spectrum in such a way it can merge with the natural system noise.<br/> To verify the validity of the proposed RPWM scheme, the experiment based on the TMS320 C31 microprocessor was executed.<br/> Finally, the simulation and experimental results will be given to demonstrate the effectiveness of the proposed RPWM technique.