Characteristic Analysis for the Reduction Detent Force of Double-sided Slotted Type Permanent Magnet Linear Generator for Wave Energy Conversion

파력에너지 변환용 양측식 슬롯티드 타입 선형 발전기의 디텐트력 저감을 위한 특성해석

Seo, Sung-Won;Choi, Jang-Young;Koo, Min-Mo;Park, Hyung-Il;Hong, Keyyong;Kim, Kyong-Hwan

  • Received : 2016.01.22
  • Accepted : 2016.02.15
  • Published : 2016.02.29


This study considered the reduction of the detent force of a permanent magnet linear synchronous generator (PMLSG). The PMLSG has a relatively large magnetic air gap. Thus, a slotted type of stator structure is generally employed. Furthermore, the detent force, which is caused by energy imbalances owing to the interaction between tooth-slot structures and the permanent magnets (PMs), must be minimized for start-up operation. Therefore, in this paper, the methods of auxiliary teeth and a notch in the teeth are applied to reduce the detent force.


permanent magnet linear synchronous generator;detent force;auxiliary teeth;notch


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Grant : 10MW급부유식 파력-해상풍력 연계형 발전시스템 개발

Supported by : 해양수산부