Design of Bi-directional CLLC Resonant Converter with Planar Transformer and Synchronous Rectification for Energy Storage Systems
| Autor: | Ajeet Kumar Dhakar, Vivek Kumar Saini, Abhinav Soni, Saurav Chandel |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry 020208 electrical & electronic engineering Electrical engineering 020302 automobile design & engineering High voltage 02 engineering and technology Planar transformers Converters Energy storage law.invention 0203 mechanical engineering law MOSFET 0202 electrical engineering electronic engineering information engineering business Transformer Low voltage Power density |
| Zdroj: | 2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). |
| DOI: | 10.1109/pedes49360.2020.9379668 |
| Popis: | This paper presents the design of a bidirectional CLLC resonant converter for low-voltage energy storage systems (48V) applications. Usually, the power density for such converters is low due to low switching frequency operation. Thus for the first step, the switching frequency is kept ~300-350 kHz to reduce the size of passives components, which facilitates the usage of planar transformers to enhance power density. Generally, the current on the LV side is high, and to mitigate this a synchronous rectification (SR) scheme is devised. FEA analysis is performed to verify the design of the planar transformer for peak flux density, core, and copper losses. The SRs and control loop (PI) is implemented via a 32-bit Microcontroller (TMS320F28379D) for CC/CV control in charging mode (CM) and Discharging Mode (DM) respectively. This proof of concept prototype is verified through a 700W hardware prototype using GaN MOSFETs at high voltage and Silicon MOSFETs at a low voltage side; achieving an efficiency of 96.6% in CM and 96.4%In DM. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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