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3kW급 소형 풍력발전용 이중고정자형 발전기의 코깅토크 저감을 위한 고정자 치조합 설계
곽명준(Myeong-Jun Gwak),서정랑(Jung-Rang Seo),정태욱(Tae-Uk Jung) 한국조명·전기설비학회 2019 조명·전기설비학회논문지 Vol.33 No.12
Dual stator type generators have excellent output per unit volume and can generate high efficiency in a wide operating range based on high voltage at low wind speed. The dual stator type generator can minimize the cogging torque generated by the two inner and outer generators through the mutual displacement of the stator or the permanent magnet. However, this method has a disadvantage of lowering the output and efficiency of the generator. Therefore, this paper presents a design method applying stator teeth pairing to reduce cogging torque of dual stator type generators. The proposed method is to design the width of inner stator teeth and the width of outer stator teeth to be different from each other. To verify the validity of this paper, we present the results of 2D finite element analysis and verify the validity of this paper.