Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 23, Issue 6, Pages 2648-2656Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2008.2005106
Keywords
DC-DC converter; deadband effect; high-frequency transformer; phase shift; short-time-scale; transient process
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Funding
- U.S. Army Tank Automotive and Armament Research, Development, and Engineering Command (TARDEC)
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This paper discusses the short-time-scale transient processes in an isolated bidirectional dc-dc converter with phase-shift control. The deadband effect on the steady-state and transient commutating process are analyzed. The current variations caused by phase-shift errors at the boundary conditions are simulated and validated through experiments. The concept of energy deadband is introduced to describe those specific transients where no energy flows from source to load or load to source. A set of strategies are proposed to increase the system robustness. Simulation and experiments on a 200-V/400-V, 6-kW dc-dc converter prototype validated these strategies.
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