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Conference Paper
New Reverse Mode Control Method of Phase-Shift Full-Bridge Converter for Bidirectional Auxiliary Power Module
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- Authors
- Jongyoon Chae, Dongmin Kim, Dongmin Choi, Gun-Woo Moon
- Issue Date
- 2025-03
- Citation
- Applied Power Electronics Conference and Exposition (APEC) 2025, pp.1899-1904
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper introduces a novel reverse mode control strategy of a phase-shift full-bridge (PSFB) converter for bidirectional auxiliary power modules (APM) in electric vehicles. The proposed method utilizes a new leading leg phase delay (LLPD) modulation to reduce excessive voltage overshoots on the current-fed side switches. Small-signal modeling and relative gain array (RGA) analysis confirm the applicability of the decentralized control structure for the proposed method. Moreover, the control method to extend the zero-voltage switching (ZVS) range for lagging leg switches is presented. The effectiveness of the proposed control method is experimentally verified through a 500 W PSFB converter prototype.
- KSP Keywords
- Auxiliary power module(APM), Control strategy, Current-Fed, Phase-shift full-bridge converter, Relative Gain Array, Reverse mode, Small-signal modeling, control method, control structure, decentralized control, electric vehicles(EV)