The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Power Control of Three Phase PWM Converter for Small-scale Wind Power using Flux Weakening Control in Over Wind Speed Region

과풍속 영역에서의 약계자 제어를 이용한 풍력발전용 3상 PWM 컨버터의 출력제어

  • Ku, Hyun-Keun (Dept. of Electrical Eng., Pusan National University) ;
  • Kim, Jae-Heung (C&M Control Team, LG Electronics) ;
  • Lee, Hyung-Uk (Interdisciplinary Program in Robot Relation., Pusan National University) ;
  • Kim, Jang-Mok (Dept. of Electrical Eng., Pusan National University)
  • Received : 2013.01.29
  • Accepted : 2014.02.03
  • Published : 2014.04.20
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Abstract

This paper proposes the battery charging algorithm for small-scale wind power generator using three phase PWM converter. it is impossible to control output power of the converter in over wind speed region since back EMF of PMSG is higer than battery voltage. Therefore, battery charging algorithm is proposed to expand battery charging over wind speed region. The suggested method is using the q-axis current for battery charging in the rated wind speed region. In the over wind speed region after it lower back EMF of PMSG using d-axis current it can control output power of the converter. The validity of the proposed algorithm are verified by experiments.

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References

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