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인휠 외전형 구동 모터의 극 슬롯 조합에 따른 전자기 손실 및 특성 분석
김필중(Peel Joong Kim),박수환(Soo Hwan Park),고욱(Gu Xu),임소연(So Yeon IM),안수민(Soo Min An),임명섭(Myung-Seop Lim) 한국자동차공학회 2021 한국자동차공학회 부문종합 학술대회 Vol.2021 No.6
In-wheel motors are being studied as a next generation type motor for vehicle applications. And outer rotor permanent magnet synchronous motor(PMSM) is one of the most appropriate motor type for In-wheel motors because of its large torque property. Different from traditional traction motors, outer rotor PMSM directly drives wheels so mechanical loss is much smaller. As a result, electromagnetic loss including iron loss, copper loss and PM eddy current loss are major loss for In-wheel outer rotor PMSM. So to design high efficiency in wheel motor, analysis for electromagnetic loss is essential. So this paper discusses about the electromagnetic loss at main driving point of three outer rotor PMSM models with different pole slot combinations. 32pole 48slot, 40pole 48slot and 44pole 48slot combinations are chosen and additionally torque ripple characteristic that is important for ride quality is also analyzed. In conclusion, major electromagnetic loss and the best pole slot combination is chosen.
김필숙,안수민,이현주,김은경 창원대학교 생활과학연구소 2001 생활과학연구 Vol.5 No.-
Of all forms of family violence, wife abuse ranks second, following child abuse, in terms of the attention it now receives in public, professional, and scientific communities. The purpose of this paper is to review what is known about prevalence of wife abuse, to summarize theories on what causes wife battering, to describe current treatment modes, and to highlight some premising future directions. The term battered women in this paper will be used to describe women who have experienced physically injurious behavior at the hands of their husbands. Theories of wife battering are organized around three different levels of explanation: intraindividual, social psychological, and sociocultural, Wife battering has physical and psychological impact on battered wives. A variety of intervention programs have been developed to combat wife abuse. Initial intervention programs aimed at combatting wife abuse focused on the women who were its victims and included shelters, hotlines, cirsis intervention programs, and counseling services for abused wives. In the second level prevention program, it is necessary to educate the community about wife battering and to alter the societal attitudes which support it. Also it is effective to have a programs for men who batter. Treatments focusing on skills development and behavioral changes include methods designed to improve the men's ability to reorganize their stressors and react to them differently. Educational programs for couples and processionals are need to be developed.