A digital implementation of continuous-time ripple correlation control for photovoltaic applications

Author

Kroeger, Kevin P. ; Choi, Sanghun ; Bazzi, Ali M. ; Johnson, Brian B. ; Krein, Philip T.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA

fYear

2010

fDate

12-13 Feb. 2010

Firstpage

7

Lastpage

11

Abstract

A new digital implementation of continuous-time ripple correlation control (RCC) for maximum power point tracking of photovoltaic (PV) panels. This implementation is straightforward and provides easy and convenient expansion to multiple-panel PV systems. The simple graphical user interface developed helps control and monitor the panels, with the options of manual control or RCC. Digital implementation provides a suitable environment for phase-shift compensation which usually leads to convergence problems with RCC. Results show that over 95% convergence accuracy is achieved using the proposed implementation.

Keywords

continuous time systems; correlation methods; digital control; maximum power point trackers; photovoltaic power systems; solar cell arrays; continuous-time ripple correlation control; digital implementation; graphical user interface; maximum power point tracking; multiple-panel PV systems; phase-shift compensation; photovoltaic pannels; Capacitance; Control systems; Convergence; Cutoff frequency; Digital control; Filters; Inductors; Photovoltaic systems; Solar power generation; Switching converters; Maximum power point tracking; digital control of photovoltaics; microconverter; multi-panel phovoltaic systems; ripple correlation control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Conference at Illinois (PECI), 2010

Conference_Location

Urbana-Champaign, IL

Print_ISBN

978-1-4244-5902-5

Type

conf

DOI

10.1109/PECI.2010.5437166

Filename

5437166