Dynamic behaviour of a constant-frequency buck power cell in a photovoltaic battery charger with a maximum power tracker

Author

Kislovski, A.

Author_Institution

Ascom Hasler Ltd., Berne, Switzerland

fYear

1990

fDate

11-16 March 1990

Firstpage

212

Lastpage

220

Abstract

Criteria for the choice of a strategy for an extreme-seeking photovoltaic battery charger system are discussed. A feedback regulator stabilizing the input voltage to its power cell has been chosen and its dynamic model analyzed. The approach, based on the cell characteristic coefficients, is shown to accurately predict the behavior of this uncommon regulator with an LC input filter and is fed by a source with a nonnegligible output resistance. The availability of an easy-to-use dynamic model facilitates the visualization of the design tradeoffs and provides a comprehensive base for design decisions.<>

Keywords

battery chargers; photovoltaic power systems; power convertors; solar cell arrays; tracking; LC input filter; cell characteristic coefficients; constant-frequency buck power cell; dynamic model; feedback regulator; nonnegligible output resistance; photovoltaic battery charger; power tracker; Batteries; Feedback; Filters; Fluctuations; Photovoltaic systems; Power system modeling; Regulators; Solar power generation; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1990. APEC '90, Conference Proceedings 1990., Fifth Annual

Conference_Location

Los Angeles, CA, USA

Type

conf

DOI

10.1109/APEC.1990.66414

Filename

66414