The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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A Study on Design of 50kW PMSG for Micro-grid Application

마이크로그리드용 50kW급 PMSG 설계에 관한 연구

  • 정문선 (국립목포대학교 전기공학과) ;
  • 문채주 (국립목포대학교 스마트그리드연구소) ;
  • 김형길 ((주)설텍) ;
  • 장영학 (국립목포대학교 스마트그리드연구소) ;
  • 박태식 (국립목포대학교 스마트그리드연구소)
  • Received : 2014.01.27
  • Accepted : 2014.04.11
  • Published : 2014.04.30
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Abstract

In this paper, the 50kW aerogenerator which is applicable to the microgrid was designed and analyzed by using commercial simulation program Maxwell 2D. Particularly, the suggested PMSG to reduce the cogging torque introduced the offset and skew concept. The suggested optimal value of offset and skew was decided by 2mm and 60 degree of electric angle. The simulation results of the PMSG when load operation condition showed the average harmonic distortion 1.3%, voltage 322.41V, current 94.95A, and iron loss 9.73W, eddy current loss 73.68W, copper loss 3.52kW. The capacity of aerogenerator calculated 61.56kW, and the suggested design process can be applied to higher capacity generator.

본 논문에서는 마이크로그리드 적용을 위한 50kW 풍력발전기를 설계하였으며, 발전기의 해석은 maxwell 2D 상용프로그램을 사용하였다. 특히 제안된 PMSG는 코깅토크를 줄이고자 offset과 skew를 적용하였다. 최적의 옵셋과 스큐는 2mm와 전기각 60도를 제안하였다. 부하운전시 모의결과는 평균 고조파 1.3%, 전압 322.41V, 전류 94.95A, 철손 9.73W, 와류손 73.68W, 동손 3.52kW로 나타났다. 계산된 발전기 용량은 61.56kW이며, 제안된 설계절차는 더 큰 용량의 발전기설계에 적용할 수 있다.

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