科研之友
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摘要
This study develops a newly designed, patented, bidirectional dc/dc converter (BDC)that interfaces a main energy storage (ES1), an auxiliary energy storage (ES2), and dc-bus of different voltage levels, for application in hybrid electric vehicle systems. The proposed converter can operate in a step-up mode (i.e., low-voltage dual-source-powering mode) and a step-down(i.e., high-voltage dc-link energy-regenerating mode), both with bidirectional power flowcontrol. In addition, the model can independently control power flow between any two low-voltage sources (i.e., low-voltage dual-source buck/boost mode). Herein, the circuit configuration, operation, steady state analysis, and closed-loop control of the proposed BDC are discussed according to its three modes of power transfer. Moreover, the simulation and experimental results for a 1-kW prototype system are provided to validate the proposed converter.
- 出版日期2018-2
