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Modeling, analysis and design for hybrid power systems with dual-input DC/DC converter

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4 Author(s)
Yan Li ; Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China ; Xinbo Ruan ; Dongsheng Yang ; Fuxin Liu

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 converter (MIC) has the advantage of simpler circuit design and lower cost, compared to the conventional use of several single-input converters. Taking dual-input Buck converter as the example in this paper, a new power management strategy is first proposed and the multiple operation modes of the system are analyzed. Based on the small signal modeling, a new approach for designing the closed-loop system can be proposed. The system with the designed regulators can operate stably in each operation mode and switch smoothly among the multiple operation modes.

Published in:

Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE

Date of Conference:

20-24 Sept. 2009