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논문 기본 정보

자료유형
학술저널
저자정보
Yung-Deug Son (Pusan National University) Won-Sang Im (Pusan National University) Han-Seok Park (Pukyong National University) Jang-Mok Kim (Pusan National University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.9 No.2
발행연도
2014.3
수록면
532 - 540 (9page)

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초록· 키워드

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It is necessary to measure the current of rotor for controlling the active and reactive power generated by the stator side of the doubly fed induction generator (DFIG) system. There are offset and scaling errors in the current measurement. The offset and scaling errors cause one and two times current ripples of slip frequency in the synchronous reference frame of vector control, respectively. This paper proposes a compensation method to reduce their ripples. The stator current is variable according to the wind force but the rotor current is almost constant. Therefore input of the rotor current is more useful for a compensation method. The proposed method adopts the synchronous d-axis current of the rotor as the input signal for compensation. The ripples of the measurement errors can be calculated by integrating the synchronous d-axis stator current. The calculated errors are added to the reference current of rotor as input of the current regulator, then the ripples are reduced. Experimental results show the effectiveness of the proposed method.

목차

Abstract
1. Introduction
2. Description of DFIG
3. Effect of Measurement Errorof Rotor Current
4. Detection and Compensation of Current Errors
5. Experimental Results
6. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2015-500-001097263