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정지훈

Jung, Jee-Hoon
Advanced Power Interface & Power Electronics Lab.
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DC-DC Dual Active Bridge 컨버터의 소신호 모델링 및 제어기 설계에 관한 연구

Alternative Title
Study on Small-signal Modeling and Controller Design of DC-DC Dual Active Bridge Converters
Author(s)
이원빈최현준조진태정지훈
Issued Date
2017-04
DOI
10.6113/TKPE.2017.22.2.159
URI
https://scholarworks.unist.ac.kr/handle/201301/21163
Fulltext
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE07153071
Citation
전력전자학회 논문지, v.22, no.2, pp.159 - 165
Abstract
Small-signal modeling and controller design methodology are proposed to improve the dynamics and stability of a DC-DC dual active bridge (DAB) converter. The state-space average method has a limitation when applied to the DAB converter because its state variables are nonlinear and have zero average values in a switching period. Therefore, the small-signal model and the frequency response of the DAB converter are derived and analyzed using a generalized average method instead of conventional modeling methods. The design methodology of a lead-lag controller instead of the conventional proportional-integral controller is also proposed using the derived small-signal model. The accuracy and performance of the proposed small-signal model and controller are verified by simulation and experimental results with a 500 W prototype DAB converter.
Publisher
전력전자학회
ISSN
1229-2214

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