Lyapunov-Based Control Scheme for Single-Phase Grid-Connected PV Central Inverters

Author

Meza, C. ; Biel, D. ; Jeltsema, D. ; Scherpen, J.M.A.

Author_Institution

Inst. Tecnol. de Costa Rica, Cartago, Costa Rica

Volume

20

Issue

2

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

520

Lastpage

529

Abstract

A Lyapunov-based control scheme for single-phase single-stage grid-connected photovoltaic central inverters is presented. Besides rendering the closed-loop system globally stable, the designed controller is able to deal with the system uncertainty that depends on the solar irradiance. A laboratory prototype has been built as a proof of concept for the proposed control technique. A nonlinear passive adaptive controller has been programmed in a field-programmable gate array.

Keywords

Lyapunov methods; adaptive control; closed loop systems; control system synthesis; field programmable gate arrays; invertors; nonlinear control systems; photovoltaic power systems; power grids; power system control; stability; uncertain systems; Lyapunov-based control scheme; closed-loop system; control technique; designed controller; field-programmable gate array; global stability; laboratory prototype; nonlinear passive adaptive controller; single-phase grid-connected PV central inverters; single-phase single-stage grid-connected photovoltaic central inverters; solar irradiance; system uncertainty; Approximation methods; Arrays; Converters; Inverters; Mathematical model; Power conditioning; Temperature sensors; Author, please supply index terms/keywords for your paper. To download the IEEE Taxonomy go to http://www.ieee.org/documents/2009Taxonomy_v101.pdf;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/TCST.2011.2114348

Filename

5725142