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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.13 No.1
- 발행연도
- 2018.1
- 수록면
- 240 - 249 (10page)
이용수
초록· 키워드
오류제보하기
Individual DC voltage balance problem is an inherent issue for cascaded H-bridge (CHB) based converter. When the CHB-based static synchronous compensator (STATCOM) is operating at zero current mode, the software-based individual DC voltage balancing control techniques may not work because of the infinitesimal output current. However, the different power losses of each cell would lead to the individual DC voltages unbalance. The uneven power losses on the local supplied cell-controllers (including the control circuit and drive circuit) would especially cause the divergence of individual DC voltages, due to their characteristic as constant power loads. To solve this problem, this paper proposes an adaptive voltage balancing module which is designed in the cell-controller board with small size and low cost circuits. It is controlled to make the power loss of the cell a constant resistance load, thus the DC voltages are balanced in zero current mode. Field test in a 10㎸ STATCOM confirms the performance of the proposed method.
목차
Abstract
1. Introduction
2. Star Connected Statcom and its Control System
3. DC Voltage Unbalance Analysis at Zero Current Mode
4. The DC Voltage Balancing Module in the Cell-Controller Board
5. Comparison of Three Hardware Based Dc Voltage Balancing Schedules
6. Conclusions
References
참고문헌 (19)
참고문헌 신청
E. Behrouzian, M. Bongiorno and R. Teodorescu, “Impact of switching harmonics on capacitor cells balancing in phase-shifted PWM based cascaded Hbridge STATCOM,” IEEE Transactions on Power Electronics, vol. 32, no. 1, pp. 815-824, Jan. 2017.
Z. Yang, J. Sun, S. Li, M. Huang, X. Zha, Y. Tang, “An adaptive carrier frequency optimization method for harmonic energy unbalance minimization in Cascaded H-bridge based active power filter,” IEEE transaction on power electronics, in press.
L. Xiong and F. Zhuo, “A novel DC voltage balancing method for cascaded STATCOM,” 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, pp. 924-929, 2013.
Xiong, L.; Zhuo, F., “Chopper controller based DC voltage control strategy for cascaded multilevel STATCOM,” in Journal of Electrical Engineering & Technology, vol. 9, no. 2, pp. 576-588, 2014.
H. C. Chen and P. T. Cheng, “A DC bus voltage balancing technique for the cascaded H-bridge STATCOM with improved reliability under grid faults,” IEEE Transactions on Industry Applications, vol. 53, no. 2, pp. 1263-1270, March-April 2017.
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