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

页码：1927 / 1940

页数：14