Abstract

A dynamically rapid method used for tracking the maximum power point of photovoltaic arrays, known as ripple correlation control, is presented and verified against experiment. The technique takes advantage of the signal ripple, which is automatically present in power converters. The ripple is interpreted as a perturbation from which a gradient ascent optimization can be realized. The technique converges asymptotically at maximum speed to the maximum power point without the benefit of any array parameters or measurements. The technique has simple circuit implementations.

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Science Foundation (U.S.)

Comments

This work was supported by the National Science Foundation under Grant ECS-01-34208.

Keywords and Phrases

Maximum Power Point Tracking (MPPT); Photovoltaic (PV); Ripple Correlation Control (RCC); Photovoltaic Arrays; Circuit Theory; Correlation Methods; Optimization; Parameter Estimation; Power Converters; Photovoltaic Effects; Photovoltaic Systems; Solar Power Generation; Voltage Control; Circuits; Convergence; Current Control; Power Electronics; Automatic Control; Power Measurement; Velocity Measurement; Solar Cell Arrays; Gradient Methods; Optimisation; Photovoltaic Power Systems; Power Generation Control

International Standard Serial Number (ISSN)

0885-8993; 1941-0107

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2006 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Share

 
COinS