Observer-based control of a photovoltaic DC-DC buck converter: HDS approach

被引：1
作者：
Ali, Dali [1 ,2 ]
Said, Diaf [2 ]
Mohamed, Tadjine [1 ]
机构：
[1] Ecole Natl Polytech Alger, Ave Hacen Badi El Harrach, Algiers 16200, Algeria
[2] CDER, Algiers, Algeria
来源：
ASIAN JOURNAL OF CONTROL | 2019年 / 21卷 / 04期
关键词：
DC-DC buck converter; hybrid dynamical system; hybrid observer; PV system; sensorless; SLIDING-MODE CONTROL; POWER-POINT TRACKING; SOLAR-ARRAY CURRENT; SYSTEMS; DESIGN;
D O I：
10.1002/asjc.2157
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a new observer-based controller is proposed for a photovoltaic DC-DC buck converter; both photovoltaic (PV) voltage and current regulation are considered. In order to deal with the complex and nonlinear PV mathematical model and adapt it to the control purpose, a hybrid PV current observer model is proposed; three modes are defined and the stability of the observer is discussed using the hybrid dynamical system approach (HDS). The observer-based controller is designed for both voltage and current regulation of the PV system; the closed loop of the full system stability is demonstrated through Lyapunov analysis. Experimental results are also presented showing the feasibility of the proposed observer-based controller.
引用
收藏
页码：1927 / 1940
页数：14
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