Abstract:
This article proposes a generalized scheme of new soft-switching interleaved bidirectional dc-dc converters (BDCs) that is suitable for high voltage gain and high-power a...Show MoreMetadata
Abstract:
This article proposes a generalized scheme of new soft-switching interleaved bidirectional dc-dc converters (BDCs) that is suitable for high voltage gain and high-power applications. The proposed converter is composed of proper numbers of basic cells to achieve high voltage gain and high-power transmission, which leads to high extendibility in topology. Meanwhile, the basic cell combines coupled inductors with resonant tanks, which can control the leakage inductors’ energy and make the converter achieve soft switching in a wide voltage range. In addition, the converter features current sharing, reduced current ripple, and low voltage stresses as a result of the structure of interleaving parallel at the low voltage side (LVS) and series connection at the high voltage side (HVS). The operating principle, current ripple at the LVS, soft-switching conditions, voltage stresses of devices, and comparison analysis are discussed in detail. Furthermore, the parameter design of the proposed converter is presented. Finally, a 1-kW prototype with 25–80-V LVS and 400-V HVS is established to verify the performance of the converter, and the results show that its maximum efficiency reaches 97.3% in the boost mode and 97.1% in the buck mode.
Published in: IEEE Journal of Emerging and Selected Topics in Power Electronics ( Volume: 12, Issue: 5, October 2024)
Funding Agency:
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- High Voltage ,
- High Gain ,
- Coupling Coefficient ,
- High Voltage Gain ,
- Bidirectional DC-DC Converter ,
- Low Voltage ,
- Maximum Efficiency ,
- Voltage Range ,
- Voltage Stress ,
- High-power Applications ,
- Leakage Inductance ,
- Soft Switching ,
- Resonant Tank ,
- Higher Transmission Power ,
- Low Voltage Stress ,
- Output Power ,
- Pulse Width ,
- Duty Cycle ,
- Supercapacitors ,
- Light Load ,
- Resonant Inductor ,
- Turns Ratio ,
- Resonant Capacitor ,
- Average Current ,
- Dead Time ,
- Simple Control ,
- Core Loss
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- High Voltage ,
- High Gain ,
- Coupling Coefficient ,
- High Voltage Gain ,
- Bidirectional DC-DC Converter ,
- Low Voltage ,
- Maximum Efficiency ,
- Voltage Range ,
- Voltage Stress ,
- High-power Applications ,
- Leakage Inductance ,
- Soft Switching ,
- Resonant Tank ,
- Higher Transmission Power ,
- Low Voltage Stress ,
- Output Power ,
- Pulse Width ,
- Duty Cycle ,
- Supercapacitors ,
- Light Load ,
- Resonant Inductor ,
- Turns Ratio ,
- Resonant Capacitor ,
- Average Current ,
- Dead Time ,
- Simple Control ,
- Core Loss
- Author Keywords