A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter

被引：19
作者：
Lu, Jinghang [1 ]
Savaghebi, Mehdi [2 ]
Guan, Yajuan [1 ]
Vasquez, Juan C. [1 ]
Ghias, Amer M. Y. M. [3 ]
Guerrero, Josep M. [1 ]
机构：
[1] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark
[2] Univ Southern Denmark, Dept Elect Engn, DK-5230 Odense, Denmark
[3] Nanyang Technol Univ, Dept Elect & Elect Engn, Singapore 639798, Singapore
来源：
IEEE ACCESS | 2018年 / 6卷
关键词：
DC-DC buck converter; disturbance rejection; reduced-order enhanced state observer; robustness; system parameter variation; FEEDFORWARD; CHARGER;
D O I：
10.1109/ACCESS.2018.2872156
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 paper presents a reduced-order-enhanced state observer (RESO)-based control strategy for the PWM dc-dc buck converter. With the proposed RESO control strategy, the output voltage regulation of the dc-dc buck converter is able to achieve robust characteristics against the external disturbance and the internal parameter variation even without output current measurement. In addition, by incorporating the RESO in the controller, the output voltage regulation can be easily achieved with only a proportional gain to realize a zero steady-state error. Finally, the parameter design is discussed and the effectiveness of the proposed control strategy is verified with an experimental case study.
引用
收藏
页码：56184 / 56191
页数：8
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