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논문 기본 정보

자료유형
학술저널
저자정보
Kai Zheng (Zhengzhou Information Science and Technology Institute) Guodong Zhang (Zhengzhou Information Science and Technology Institute) Dongfang Zhou (Zhengzhou Information Science and Technology Institute) Jianbing Li (Zhengzhou Information Science and Technology Institute) Shaofeng Yin (Zhengzhou Information Science and Technology Institute)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.3
발행연도
2018.5
수록면
766 - 777 (12page)

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초록· 키워드

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In this paper, a sliding mode and proportional plus integral (SM-PI) control combined with self-sustained phase shift modulation (SSPSM) for LLC resonant converters is presented. The proposed control scheme improves the transient response while preserving good steady-state performance. An averaged large signal model of an LLC converter with the ZVS modulation technique is developed for the SM control design. The sliding surface is obtained based on the input-output linearization concept. A system identification method is adopted to obtain the transform function of the LLC resonant converter, which is used to design the PI control. In order to reduce the inherent chattering problem in the steady state, the combined SM-PI control strategy is derived with fuzzy control, where the SM control is responsive during the transient state while the PI control prevails in the steady state. The combination of SSPSM and the SM-PI control provides ZVS operation, robustness and a fast transient response against step load variations. Simulation and experimental results validate the theoretical analysis and the attractive features of the proposed scheme.

목차

Abstract
I. INTRODUCTION
II. DESCRIPTION OF THE PROPOSED FULL-BRIDGE LLC CONVERTER
III. DYNAMIC MODELING OF THE LLC CONVERTER
IV. SM-PI CONTROL DESIGN
V. SIMULATION AND EXPERIMENTAL RESULTS
VI. CONCLUSIONS
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