Browse > Article
http://dx.doi.org/10.6113/JPE.2010.10.3.245

Digital Control Strategy for Input-Series-Output-Parallel Modular DC/DC Converters  

Sha, Deshang (School of Automation, Beijing Institute of Technology)
Guo, Zhiqiang (School of Automation, Beijing Institute of Technology)
Liao, Xiaozhong (School of Automation, Beijing Institute of Technology)
Publication Information
Journal of Power Electronics / v.10, no.3, 2010 , pp. 245-250 More about this Journal
Abstract
Input-series-output-parallel (ISOP) converters consisting of multiple modular DC/DC converters can enable low voltage rating switches to be used under high voltage input applications. This paper presents a digital control strategy, which can achieve equal sharing of input voltage for a modular ISOP system consisting of two-transistor forward DC/DC converters by forcing the input voltages of neighboring modules to be equal. The proposed scheme is analyzed using small signals analysis based on the state space average method. The performance of the proposed control strategy is verified with an experimental prototype of an ISOP converter made up of three two-switch forward converters.
Keywords
Digital control; Forward DC/DC; Input-series and output-parallel; Modular DC/DC converters; Voltage sharing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 6  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
연도 인용수 순위
1 S. P. Natarajan and T. S. Ananadhi, "Control of input series output parallel connected DC-DC converters," Journal of Power Electronics, Vol. 7, No. 3, pp.265-270, Jul. 2007.   과학기술학회마을
2 R.Ayyanar, et. al, "Active input-voltage and load-current sharing in input-series and output-parallel connected modular DC-DC converters using dynamic input-voltage reference sheme," IEEE Trans. Power. Electron., Vol. 19, No. 6, pp.1462-1473, Nov. 2004.   DOI   ScienceOn
3 J. W. Kim, et. al., "Modeling, control, and design of input-series-outputparallel- connected converter for high-speed-train power system," IEEE Trans. Ind. Electron., Vol. 48, No. 3, pp.536-544, Jun. 2001.   DOI   ScienceOn
4 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 Trans. Ind. Appl., 2006, Vol. 42, No. 4, pp. 1101–1111, Jul. 2006.   DOI
5 D.V.Ghodke, et. al, "ZVZCS,dual,two-transistor forward DC-DC converter with peak voltage of Vin/2,high input and high power applications," in Proceeding of IEEE PESC, Cairns, pp. 1853-1858, Jun. 2002.
6 F.H. Khan, et. al., "A multilevel modular capacitor – clamped DC–DC converter," IEEE Trans. Ind. Appl., Vol. 43, No. 6, pp. 1628-1638, Nov. 2007.   DOI   ScienceOn
7 S.Bibian, et. al, "High performance predictive dead-beat digital controller for DC power supplies," IEEE Trans. Power. Electron., Vol. 17, No. 3, pp.420-427, May 2002.   DOI   ScienceOn
8 R.Ayyanar, et. al,"Uniform voltage distribution control for series connected DC-DC converters," IEEE Trans. Power. Electron., Vol. 22, No. 4, pp.1269–1279, Jul. 2007.
9 V.Choudhary, et. al ,"Fault tolerant circuit topology and control method for input-series and output-parallel modular DC-DC converters," IEEE Trans. Power. Electron., Vol. 23, No. 1, pp.402-411, Jan. 2008.
10 J. P. Lee, B. D. Min,T. J. Kim, D .W. Yoo, and J.Y.Yoo, "Input-seriesoutput- parallel connected DC/DC converter for a photovolatic PCS with high efficieency under a wide load range," Journal of Power Electronics, Vol. 10, No.1, pp.9-13, Jan. 2010.   과학기술학회마을   DOI   ScienceOn
11 D. S. Sha, et. al ,"Digital control of switch-mode pulsed welding power," in Proceeding of IEEE ECCE, San Joes, pp. 2746-2749, Sep. 2009.
12 P. J. Grbovic, "Master/slave control of input-series-and output-parallelconnected converters: concept for low-cost high-voltage auxiliary power supplies," IEEE Trans. Power. Electron., Vol. 24, No. 2, pp.316–328, Feb. 2009.
13 X. B. Ruan, et. al., "Control strategy for input-series-output-parallel converters," IEEE Trans. Ind. Electron., Vol. 56, No. 4, pp. 1174–1185, Apr. 2009.   DOI