Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 69, Issue 6, Pages 5844-5853Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2021.3090718
Keywords
Inductors; DC-DC power converters; Switches; Batteries; Voltage control; Switching frequency; Frequency control; Bidirectional discontinuous conduction mode (DCM) operation; enhanced efficiency; interleaved boost converters; variable-frequency control
Categories
Funding
- University of Arkansas
- National Science Foundation Engineering Research Center for Power Optimization of Electro-Thermal Systems (POETS) [EEC-1449548]
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In this article, a bidirectional discontinuous-conduction-mode constant on-time variable-frequency control strategy for a three-phase interleaved dc-dc converter suitable for traction applications is proposed. The strategy enhances efficiency at low-power conditions and provides fairly constant efficiency over the entire power range by synchronously controlling both the bottom and top switches of the three boost phases. Simulation and experimental results demonstrate the validity and effectiveness of the proposed approach on a 10-kW bidirectional interleaved boost converter.
A bidirectional discontinuous-conduction-mode constant on-time variable-frequency control strategy for a three-phase interleaved dc-dc converter suitable for traction applications is proposed in this article. The strategy enhances the converter efficiency at low-power conditions, providing fairly constant efficiency over the entire power range, by synchronously controlling both the bottom and top switches of the three boost phases. Simulation and experimental results demonstrate the validity and effectiveness of the proposed approach on a 10-kW bidirectional interleaved boost converter.
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