A novel nonlinear sliding mode controller for a single stage grid-connected photovoltaic system

被引：20

作者：

Menaga, D. ^{[1
]}

Sankaranarayanan, V. ^{[1
]}

机构：

[1] Natl Inst Technol Tiruchirapalli, Dept Elect & Elect Engn, Control Syst Res Lab, Tiruchirappalli, Tamil Nadu, India

来源：

ISA TRANSACTIONS | 2020年 / 107卷 / 107期

关键词：

Nonlinear control; Photovoltaic system; Sliding mode control; ALGORITHM; SCHEME;

D O I：

10.1016/j.isatra.2020.07.021

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A nonlinear sliding mode controller is proposed for a single stage grid-connected photovoltaic system with a novel nonlinear sliding surface. The proposed controller is designed to ensure maximum power extraction with unity power factor. There are two main advantages of the proposed sliding surface. The new surface will results in a first order sliding mode controller. The second advantage is that maximum power extraction is achieved by tracking DC-link voltage (V-dc) of the PV system. The proposed controller is also compared with the existing sliding mode controller in terms of both numerical simulation and experimental results. It is found that, the proposed controller's performance is better than the existing controller in terms of power extraction and more robust when there are uncertainties and disturbance in PV system. (C) 2020 Published by Elsevier Ltd on behalf of ISA.

引用

页码：329 / 339

页数：11

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