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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.3
- 수록면
- 188 - 193 (6page)
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초록· 키워드
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A highly efficient AC-DC converter for small wind power generation systems using a brushless DC generator (BLDCG) is presented in this paper. The market standard AC-DC converter for a BLDCG consists of a three-phase diode rectifier and a boost DC-DC converter, which has an IGBT and a fast recovery diode (FRD). This kind of two-stage solution basically suffers from a large amount of conduction loss and the efficiency greatly decreases under a light load, or at a low current, because of the switching devices with a P-N junction. In order to overcome this low efficiency, especially at a low current, a three-phase bridgeless converter consisting of three upper side FRDs and three lower side Super Junction FETs is presented. In the overall operating speed region, including the cut-in speed, the efficiency of the proposed converter is improved by up to 99%. Such a remarkable result is validated and compared with conventional solutions by calculating the power loss based on Ⅰ-Ⅴ curves and the switching loss data of the adopted commercial switches and the current waveforms obtained through PSIM simulations.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. CONVENTIONAL AC-DC CONVERTER
Ⅲ. PROPOSED AC-DC CONVERTER
Ⅳ. POWER LOSS CALCULATION AND COMPARISON
Ⅴ. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
참고문헌 (11)
참고문헌 신청
S.-H. Song / 2003 / Implementation and control of grid connected AC-DC-AC power converter for variable speed wind energy conversion system / IEEE Applied Power Electronics Conference and Exposition :154~158
M. Chinchilla / 2006 / Control of permanentmagnet generators applied to variable-speed wind-energy systems connected to the grid / IEEE Trans. Energy Convers 21(1):130~135
M. Valentini / 2008 / PV inverter test setup for European efficiency, static and dynamic MPPT efficiency evaluation / 11th International Conference of Optimization of Electrical and Electronic Equipment :433~438
H. Schmidt / 2003 / “Current inverter for direct/ alternating currents, has direct and alternating connections with an intermediate power store, a bridge circuit, rectifier diodes and an inductive choke,” German Patent DE10 221 592 A1, Dec. 2003
M. Victor / 2006 / “Verfahren zum umwandeln einer elektrischen gleichspannung einer gleichspannungsquelle, insbesondere einer photovoltaik-gleichspannungsquelle in eine wechselspannung,” German Patent DE102004 030 912 B3, Jan. 2006
M. Chinchilla / 2006 / Control of permanentmagnet generators applied to variable-speed wind-energy systems connected to the grid / IEEE Trans. Energy Convers 21(1):130~135
M. Valentini / 2008 / PV inverter test setup for European efficiency, static and dynamic MPPT efficiency evaluation / 11th International Conference of Optimization of Electrical and Electronic Equipment :433~438
H. Schmidt / 2003 / “Current inverter for direct/ alternating currents, has direct and alternating connections with an intermediate power store, a bridge circuit, rectifier diodes and an inductive choke,” German Patent DE10 221 592 A1, Dec. 2003
M. Victor / 2006 / “Verfahren zum umwandeln einer elektrischen gleichspannung einer gleichspannungsquelle, insbesondere einer photovoltaik-gleichspannungsquelle in eine wechselspannung,” German Patent DE102004 030 912 B3, Jan. 2006
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UCI(KEPA) : I410-ECN-0101-2012-560-004202504