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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.12 No.3
- 발행연도
- 2017.5
- 수록면
- 1,101 - 1,107 (7page)
이용수
초록· 키워드
오류제보하기
In this paper, a robust and fast grid synchronization method of a three-phase power converter is proposed. The amplitude and phase information of grid voltages are essential for power converters to be properly connected into the utility. The phase-lock-loop in synchronous reference frame has been widely adopted for the three-phase converter system since it shows a satisfactory performance under balanced grid voltages. However, power converters often operate under abnormal grid conditions, i.e. unbalanced by grid faults and frequency variations, and thus a proper active and reactive power control cannot be guaranteed. The proposed method adopts a second order generalized integrator in synchronous reference frame to detect positive sequence components under unbalanced grid voltages. The proposed method has a fast and robust performance due to its higher gain and frequency adaptive capability. Simulation and experimental results show the verification of the proposed synchronization algorithm and the effectiveness to detect positive sequence voltage.
목차
Abstract
1. Introduction
2. Conventional SRF-PLL
3. The Proposed Synchronization Method
4. Simulation results
5. Experiment
6. Conclusion
References
참고문헌 (13)
참고문헌 신청
F. Blaabjerg, R. Teodorescu, M. Liserre, A.V. Timbus, “Overview of Control and Grid Synchronization for Distributed Power Generation Systems,” IEEE Trans. on Industrial Electronics, vol. 53, no. 5, pp. 1398- 1409, Oct 2006.
L. Zhang and M. Bollen, “Characteristic of voltage dips (sags) in power systems,” Power Delivery, IEEE Transactions on, vol. 15, no. 2, pp. 827-832, 2000.
A. Timbus, M. Liserre, R. Teodorescu, and F. Blaabjerg, “Synchronization methods for three phase distributed power generation systems. an overview and evaluation,” in Power Electronics Specialists, 2005 IEEE 36th Conference on, June 12, 2005, pp. 2474-2481.
R. M. Santos Filho, P. F. Seixas, P. C. Cortizo, L. A. B. Torres, A. F. Souza, “Comparison of Three Single- Phase PLL Algorithms for UPS Applications,” IEEE Trans. on Industrial Electronics, vol. 55, no. 8, pp. 2923-2932, August 2008.
L. Arruda, S. Silva, and B. Filho, “PLL structures for utility connected systems,” in Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE, vol. 4, 30 Sept.-4 Oct. 2001, pp. 2655-2660vol.4.
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UCI(KEPA) : I410-ECN-0101-2017-560-002385355