Abstract：Hybrid power systems derive power simultaneously from several renewable energy sources and deliver power continuously to the load. For such systems, the use of a multiple-input dc/dc converter (MIC) has the advantage of simpler circuit design and lower cost, compared to the conventional use of several single-input converters. The design of the close loop is very complicated because it is a multiple-input multiple-output coupling system. Taking a double-input Buck converter as the example, this paper proposes a new design method to model the system and design the regulators. In addition, the experimental results are given to verify the effectiveness of the design by a 400W prototype. This method can be applied to the other double-input dc/dc converters.
李艳, 阮新波, 杨东升, 刘福鑫. 双输入直流变换器的建模与闭环系统设计[J]. 电工技术学报, 2010, 25(11): 90-99.
Li Yan, Ruan Xinbo, Yang Dongsheng, Liu Fuxin. Modeling and Design of Control System for Double-Input DC/DC Converter. Transactions of China Electrotechnical Society, 2010, 25(11): 90-99.
[1] Iannone F, Leva S, Zaninelli D. Hybrid photovoltaic and hybrid photovoltaic-fuel cell system: economic and environmental analysis[C]. Proc. IEEE Power Engineering Society General Meeting, 2005: 1503- 1509. [2] Jiang Z H. Power management of hybrid photovoltaic- fuel cell power systems[C]. Proc. IEEE Power Engineering Society General Meeting, 2006: 1-6. [3] Dobbs B G, Chapman P L. A multiple-input DC-DC converter topology[J]. IEEE Power Electronics Letters, 2003, 1(1): 6-9. [4] Sebastian J, Villegas P J, Nuno F. High-efficiency and wide-band width performance obtainable from a two-input Buck converter[J]. IEEE Trans. on Power Electronics, 1998, 13(4): 706-717. [5] Benavides N D, Chapman P L. Power budgeting of a multiple-input Buck-Boost converter[J]. IEEE Trans. on Power Electronics, 2005, 20(6): 1303-1309. [6] Benavides N D, Esram T, Chapman P L. Ripple correlation control of a multiple-input DC/DC converter[C]. Proc. IEEE PESC, 2005: 160-164. [7] Matsuo H, Lin W Z, Kurokawa F, et al. Characteristics of the multiple-input DC-DC converter[J]. IEEE Trans. on Industrial Electronics, 2004, 51(3): 625-631. [8] Kobayashi K, Matsuo H, Sekine Y. Novel solar cell power supply system using the multiple-input DC-DC converter [J]. IEEE Trans. on Industrial Electronics, 2006, 53(1): 281-286. [9] Liu Y C, Chen Y M. A systematic approach to synthesizing multiple-input DC/DC converter[C]. Proc. IEEE PESC, 2007: 2626-2632. [10] Chen Y M, Liu Y C, Lin S H. Double-input PWM DC/DC converter for high/low voltage sources[J]. IEEE Trans. on Industrial Electronics, 2006, 3(5): 1538-1544. [11] Rodriguez F D, Imes W G. Analysis and modeling of a two-input DC/DC converter with two controlled variables and four switched networks[C]. Proc. 31st Itersoc Energy Conversion Engineering Conf., 1996: 11-16. [12] Liu D W, Li H, Marlino L D. Design of a 6kW multiple-input bi-directional DC/DC converter with decoupled current sharing control for hybrid energy storage elements[C]. Proc. IEEE APEC, 2007: 509-513. [13] Ruan X B, Wei J, Xue Y L. Three-level converters with the input and output sharing the ground[C]. Proc. IEEE PESC, 2003: 1919-1923. [14] 李艳, 杨东升, 阮新波. 一种新的双输入直流变换器[J].电工技术学报, 2008, 23(6): 77-82. Li Yan, Yang Dongsheng, Ruan Xinbo. A new double- input DC-DC converter[J]. Transactions of China Electrotechnical Society, 2008, 23(6): 77-82. [15] Middlebrook R D, Cuk S. A general unified approach to modeling switching converter power stages[C]. Proc. IEEE PESC, 1976: 18-34. [16] Liu C R, Lai J S. Low frequency current ripple reduction technique with active control in a fuel cell power system with inverter load[J]. IEEE Trans. on Power Electronics, 2007, 22(4): 1429-1436. [17] 张卫平. 开关变换器的建模与控制[M]. 北京：中国电力出版社, 2008.
2010, Vol. 25 
