Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2002.07b
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- Pages.990-992
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- 2002
Development of Grid Connection Type Inverter for 30kW Wind Power Generation System
30kW급 발전시스템의 계통 연계형 인버터 개발
- Hahm, Nyeon-Kun (Myong-ji Univ.) ;
- Kang, Seung-Ook (Myong-ji Univ.) ;
- Kim, Yong-Joo (Myong-ji Univ.) ;
- Han, Kyong-Hee (Myong-ji Univ.) ;
- Ahn, Gyu-Bok (Intech-FA Co. Ltd) ;
- Song, Seung-Ho (Chon-buk Univ.) ;
- Kim, Dong-Yong (Chon-buk Univ.) ;
- Rho, Do-Hwan (Kowintec Co. Ltd) ;
- Oh, Young-Jin (Kowintec Co. Ltd)
- 함년근 (명지대학교) ;
- 강승욱 (명지대학교) ;
- 김용주 (명지대학교) ;
- 한경희 (명지대학교) ;
- 안규복 ((주)인텍-FA) ;
- 송승호 (전북대학교 차세대 퐁력발전연구센터) ;
- 김동용 (전북대학교 차세대 퐁력발전연구센터) ;
- 노도환 ((주)코윈텍) ;
- 오영진 ((주)코윈텍)
- Published : 2002.07.10
Abstract
30kW electrical power conversion system is delveloped for the variable speed wind turbine system. In the wind energy conversion system(WECS) a synchronous generator with field current excitation converts the mechanical energy into electrical energy. As the voltage and frequency of generator output vary according to the wind speed, a dc/dc boosting chopper is utilized to maintain constant dc link voltage. Grid connection type PWM inverter supply currents into the utility line by regulating the dc link voltage. The active power is controlled by q-axis current which the reactive power can be controlled by d-axis current reference change. The phase angle of utility voltage is detected using s/w PLL(Phased Locked Loop) in d-q synchronous reference frame. This scheme gives a low cost power solution for variable speed WECS.
Keywords