Concerning “Maximum Power Point Tracking for Photovoltaic Optimization Using Ripple-Based Extremum Seeking Control”

Author

Bazzi, Ali M. ; Krein, Philip T.

Author_Institution

Grainger Center for Electr. Machinery & Elec Tromechanics, Univ. of Illinois, Urbana, IL, USA

Volume

26

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1611

Lastpage

1612

Abstract

This paper highlights key contributions in extremum seeking (ES) control and ripple correlation control (RCC). Maximum power point tracking (MPPT) utilizing the 120-Hz inherent inverter ripple is shown to be developed in the early 1980s. Even though that specific MPPT development did not explicitly mention ES control, the analysis presented there shows otherwise. RCC stability and operating properties are also addressed where the fundamental difference between RCC and popular ES control methods is the perturbation source. Since RCC utilizes inherent switching ripple in power electronics, the high ripple frequency leads to fast RCC convergence.

Keywords

invertors; maximum power point trackers; optimisation; photovoltaic power systems; power electronics; switching convertors; ES control method; MPPT development; RCC convergence; RCC stability; high ripple frequency; inherent inverter ripple; inherent switching ripple; maximum power point tracking; perturbation source; photovoltaic optimization; power electronics; ripple correlation control; ripple-based extremum seeking control; Correlation; Inverters; Optimization; Photovoltaic systems; Stability analysis; Switches; Extremum seeking control; optimization methods; photovoltaic systems; ripple correlation control; solar power generation;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2093605

Filename

5959287