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http://dx.doi.org/10.6113/TKPE.2014.19.1.57

Development of 12V, 1000A Isolated Bidirectional Resonant DC-DC Converter  

Park, Jun-Sung (Dept. of New Energy Eng., Seoul Nat'l Univ. of Science and Technology)
Choi, Se-Wan (Dept. of Ele -ctrical & Information Eng., Seoul Nat'l Univ. of Science and Technology)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.19, no.1, 2014 , pp. 57-63 More about this Journal
Abstract
In this paper a bidirectional DC-DC converter is proposed for renewable energy systems, eco-friendly vehicles, energy storage systems, uninterruptible power supply(UPS) systems and battery test equipments. The two-stage bidirectional converter employing a fixed-frequency series loaded resonant converter is designed to be capable of operating under zero-current-switching turn on and turn off regardless of voltage and load variation, and hence its magnetic components and EMI filters can be optimized. And efficiencies and volumes of the two-stage bidirectional converters are compared according to configuration of isolated and non-isolated parts and a two-stage topology suitable for low voltage and high current applications is proposed. A 12kW(12V, 1000A) prototype of the proposed converter has been built and tested to verify the validity of the proposed operation.
Keywords
bi-directional converter(BDC); series loaded resonant converter(SRC); zero current switching(ZCS);
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