Robust Adaptive Control Strategy for a Bidirectional DC-DC Converter Based on Extremum Seeking and Sliding Mode Control

被引:8
|
作者
Trinh, Hoai-An [1 ]
Nguyen, Duc Giap [2 ]
Phan, Van-Du [1 ]
Duong, Tan-Quoc [3 ]
Truong, Hoai-Vu-Anh [4 ]
Choi, Sung-Jin [3 ]
Ahn, Kyoung Kwan [1 ]
机构
[1] Univ Ulsan, Dept Mech Engn, Ulsan 44610, South Korea
[2] Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea
[3] Univ Ulsan, Dept Elect Elect & Comp Engn, Ulsan 44610, South Korea
[4] Pohang Univ Sci & Technol POSTECH, Dept Mech Engn, Gyeongbuk 37673, South Korea
基金
新加坡国家研究基金会;
关键词
bidirectional DC-DC converter; voltage regulation; continuous sliding mode control; extended state observer; extremum seeking; STORAGE; DESIGN; STATE;
D O I
10.3390/s23010457
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This paper presents a new control strategy that combines classical control and an optimization scheme to regulate the output voltage of the bidirectional converter under the presence of matched and mismatched disturbances. In detail, a control-oriented modeling method is presented first to capture the system dynamics in a common canonical form, allowing different disturbances to be considered. To estimate and compensate for unknown disturbances, an extended state observer (ESO)-based continuous sliding mode control is then proposed, which can guarantee high tracking precision, fast disturbance rejection, and chattering reduction. Next, an extremum seeking (ES)-based adaptive scheme is introduced to ensure system robustness as well as optimal control effort under different working scenarios. Finally, comparative simulations with classical proportional-integral-derivative (PID) control and constant switching gains are conducted to verify the effectiveness of the proposed adaptive control methodology through three case studies of load resistance variations, buck/boost mode switching, and input voltage variation.
引用
收藏
页数:24
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