Extended state observer-based sliding mode control for PWM-based DC-DC buck power converter systems with mismatched disturbances

被引:241
|
作者
Wang, Junxiao [1 ]
Li, Shihua [1 ]
Yang, Jun [1 ]
Wu, Bin [1 ]
Li, Qi [1 ]
机构
[1] Southeast Univ, Sch Automat, Key Lab Measurement & Control Complex Syst Engn, Minist Educ, Nanjing 210096, Jiangsu, Peoples R China
来源
IET CONTROL THEORY AND APPLICATIONS | 2015年 / 9卷 / 04期
关键词
observers; variable structure systems; DC-DC power convertors; PWM power convertors; power system control; stability; extended state observer-based sliding mode control; PWM-based DC-DC buck power converter systems; mismatched disturbances; disturbance estimation technique; ESO-based SMC method; stability analysis; nominal SMC method; disturbance rejection ability; REJECTION; DESIGN; FEEDBACK;
D O I
10.1049/iet-cta.2014.0220
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This study investigates an extended state observer (ESO)-based sliding mode control (SMC) approach for pulse-width modulation-based DC-DC buck converter systems subject to mismatched disturbances. By designing a novel sliding-mode manifold incorporated with a disturbance estimation technique, an ESO-based SMC method is designed to deal with mismatched disturbances. A rigorous stability analysis is also presented. As compared with the nominal SMC method, the proposed method obtains a better disturbance rejection ability even the disturbances do not satisfy the so-called matching condition. Simulations and experimental comparison results are implemented to verify the effectiveness of the proposed control method.
引用
收藏
页码:579 / 586
页数:8
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