A Multiport Isolated DC-DC Converter

This paper presents a multi-port isolated DC-DC converter for DC applications. A three-port structure is presented, characterized with full bidirectional power flow and simple control. Galvanic isolation is achieved by means of a multi-winding medium frequency transformer which is a part of a resonant LLC converter. To provide controllable power exchange with external DC ports, two out of three ports are equipped with additional bidirectional buck/boost stages. They serve to provide active power flow control, while the inner resonant stage provides galvanic isolation, operates in the open-loop and adapts its mode of operation based on the actual power flow. Both switched mode and rea-time hardware-in-the-loop simulations, with control algorithm deployed on the digital signal processor, are used to verify and demonstrate various operational modes.


Published in:
Proceedings of the Applied Power Electronics Conference and Exposition - APEC, 156-162
Presented at:
The Applied Power Electronics Conference and Exposition - APEC, Long Beach, California, March 20-24, 2016
Year:
2016
Publisher:
New York, IEEE
ISBN:
978-1-4673-9550-2
Keywords:
Laboratories:




 Record created 2016-03-27, last modified 2018-09-13

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