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자료유형
학술저널
저자정보
Beomseok Chae (Chonbuk National University) Yongsug Suh (Chonbuk National University) Tahyun Kang (Milimsyscon)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.5
발행연도
2018.9
수록면
1,501 - 1,512 (12page)

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This paper proposes a three-phase three-switch buck-type converter as the MSC of a wind turbine system. Owing to a novel switching modulation scheme that can eliminate the unwanted diode rectifier mode switching state, the proposed system exhibits a satisfying ac voltage and current waveform quality and torque ripple up to the level of a typical current source rectifier even under a wide power factor operating range. The proposed system has been verified through simulations and HILS tests on a PMSG wind turbine model of 5MW/4160V. The proposed converter has been shown to provide a stator current THD of 3.9% and a torque ripple of 1% under the rated power condition. In addition to the inherent advantage of the reduced switch count of three-phase three-switch buck-type converters, the proposed switching modulation technique can make this converter a viable solution for the MSC placed inside of a nacelle, which is under severe volume, weight and mechanical vibration design limits.

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Abstract
I. INTRODUCTION
II. CURRENT SOURCE RECTIFIER AND THREE-PHASE THREE-SWITCH BUCK-TYPE RECTIFIER FOR WIND TURBINE SYSTEMS
III. CURRENT COMMUTATION AND SWITCHING STATES OF A THREE-PHASE THREE-SWITCH BUCK-TYPE RECTIFIER
IV. MODULATION STRATEGY OF THREE-PHASE THREE-SWITCH BUCK-TYPE RECTIFIERS
V. SIMULATION AND EXPERIMENT RESULTS
VI. CONCLUSIONS
REFERENCES

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