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Energies 2018, 11(9), 2450; https://doi.org/10.3390/en11092450

Bidirectional DC Converter with Frequency Control: Analysis and Implementation

Department of Electrical Engineering, National Yunlin University of Science and Technology, Yunlin 640, Taiwan
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Received: 18 August 2018 / Revised: 6 September 2018 / Accepted: 13 September 2018 / Published: 14 September 2018
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Abstract

In this paper, a direct current (dc) converter with the abilities of bidirectional power transfer and soft switching characteristics is studied and implemented. The circuit schematic of the developed dc converter is built by a half-bridge converter and a center-tapped rectifier with synchronous rectifier. Under forward power transfer, a half-bridge circuit is controlled to regulate the low-voltage side at a stable value. For backward power transfer, a center-tapped rectifier with synchronous rectifier is regulated to control the high-voltage side at the desired voltage value, and the half-bridge circuit is operated as a voltage doubler rectifier. Active power devices are operated at zero-voltage switching using a series resonant technique on the high-voltage side with frequency modulation and inductive load operation. The practicability of the developed converter is established from experiments with a laboratory prototype circuit. View Full-Text
Keywords: dc–dc converter; bidirectional power control; soft switching dc–dc converter; bidirectional power control; soft switching
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Lin, B.-R.; Huang, Y.-C. Bidirectional DC Converter with Frequency Control: Analysis and Implementation. Energies 2018, 11, 2450.

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