Digital Active Load Sharing Control of Paralleled Phase-Shifted Full-Bridge Converters

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For the high power demand and N+1 redundancy, this paper presents the digital load share (LS) controller design and the implementation of paralleled phase-shifted full-bridge converters (PSFBC) used in distributed power systems. By adopting the digital control strategy, separately used ICs for PSFBC and LS control functions in analog systems can be merged into a costeffective digital controller. To compensate and stabilize both PSFBC and LS loops with the direct digital design approaches, small-signal model of the system is derived in discrete-time domain. The steady-state and dynamic load sharing performances are also investigated. Experimental results from two 1.2 ㎾ paralleled PSFBC modules are shown to verify the proposed work.
Publisher
KIPE
Issue Date
2010-07
Language
KOR
Citation

2010년도 전력전자학술대회, pp.129 - 130

URI
http://hdl.handle.net/10203/169380
Appears in Collection
EE-Conference Papers(학술회의논문)
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