Browse > Article
http://dx.doi.org/10.6113/TKPE.2021.26.3.205

A Study on the Affected of DC-Link Voltage Balance Control of the Vienna Rectifier Linked With the Input Series Output Parallel LLC Converter  

Baek, Seung-Woo (Dept. of Control & Instrumentation Engineering, Korea Nat'l University of Transportation)
Kim, Hag-Wone (Electronic Engineering, Korea Nat'l University of Transportation)
Cho, Kwan-Yuhl (Dept. of Control & Instrumentation Engineering, Korea Nat'l University of Transportation)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.26, no.3, 2021 , pp. 205-213 More about this Journal
Abstract
Due to the advantage of reducing the voltage applied to the switch semiconductor, the input series and output parallel combination is widely used in systems with high input voltage and large output current. On the other hand, the LLC converter is widely used as a high-efficiency power converter, and when connected by ISOP combination, there is a possibility that input voltage imbalance may occur due to a mismatch of passive devices. To avoid damaging the switching device, this study analyzed the DC-link voltage imbalance of a high-capacity supply using an ISOP LLC converter. In addition, the case where DC-link unbalance control was applied and the case not applied was analyzed respectively. Based on this analysis, an initial start-up algorithm was proposed to prevent input power semiconductor device damage due to DC-link over-voltage. The effectiveness of the proposed algorithm has been verified through simulations and experiments.
Keywords
LLC converter; ISOP (Input Series Output Parallel); Unbalance control; Three-level rectifier; Resonant converter;
Citations & Related Records
연도 인용수 순위
  • Reference
1 N. Yousefpoor, B. Parkhideh, A. Azidehak, S. Kim, and S. Bhattacharya, "Control of high-frequency isolated modular converter," IEEE Transactions on Industry Applications, Vol. 51, No. 6, pp. 4634-4641, Nov./Dec. 2015.   DOI
2 Z. Xing, X. Ruan, H. You, X. Yang, D. Yao, and C. Yuan, "Soft-switching operation of isolated modular DC/DC converters for application in HVDC grids," IEEE Transactions on Power Electronics, Vol. 31, No. 4, pp. 2753-2766, Apr. 2016.   DOI
3 D. Karwatzki and A. Mertens, "Generalized control approach for a class of modular multilevel converter topologies," IEEE Transactions on Power Electronics, Vol. 33, No. 4, pp. 2888-2900, Apr. 2018.   DOI
4 F. Deng, Y. Lu, C. Liu, Q. Heng, Q. Yu, and J. Zhao, "Overview on submodule topologies, modeling, modulation, control schemes, fault diagnosis, and tolerant control strategies of modular multilevel converters," Chinese Journal of Electrical Engineering, Vol. 6, No. 1, pp. 1-21, Mar. 2020.   DOI
5 S. Shao et al., "A modular multilevel resonant DC-DC converter," IEEE Transactions on Power Electronics, Vol. 35, No. 8, pp. 7921-7932, Aug. 2020.   DOI
6 T. Wang, C. Chen, P. Liu, T. Liu, Z. Chao, and S. Duan, "A hybrid space-vector modulation method for harmonics and current ripple reduction of interleaved vienna rectifier," IEEE Transactions on Industrial Electronics, Vol. 67, No. 10, pp. 8088-8099, Oct. 2020.   DOI
7 B. Kim, K. Park, C. Kim, B. Lee, and G. Moon, "LLC resonant converter with adaptive link-voltage variation for a high-power-density adapter," IEEE Transactions on Power Electronics, Vol. 25, No. 9, pp. 2248-2252, Sep. 2010.   DOI
8 C. Fei, F. C. Lee, and Q. Li, "High-efficiency high-power-density LLC converter with an integrated planar matrix transformer for high-output current applications," IEEE Transactions on Industrial Electronics, Vol. 64, No. 11, pp. 9072-9082, Nov. 2017.   DOI
9 S. S. Hwang, S. W. Baek, and H. W. Kim, "Power balance method using coupled shunt inductor and multiple-input transformer for ISOP LLC converter," Electronics, Vol. 8, No. 3, pp. 352, Mar. 2019.   DOI
10 H. W. Kim, B. C. Yoon, K. Y. Cho, B. K. Lim, and S. S. Hwang, "Single carrier wave comparison PWM for Vienna rectifier and consideration for DC-link voltage unbalance of offset voltage effects," in 2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC), Amsterdam, Netherlands, pp. 1-6, 2011.
11 A. R. Izadinia and H. R. Karshenas, "Current shaping in a hybrid 12-pulse rectifier using a vienna rectifier," IEEE Transactions on Power Electronics, Vol. 33, No. 2, pp. 1135-1142, Feb. 2018.   DOI
12 R. Giri, V. Choudhary, R. Ayyanar, and N. Mohan, "Common-duty-ratio control of input-series connected modular DC-DC converters with active input voltage and load-current sharing," IEEE Transactions on Industry Applications, Vol. 42, No. 4, pp. 1101-1111, Jul./Aug. 2006.   DOI