A study of lead-acid battery efficiency near top-of-charge and the impact on PV system design

Author

Stevens, John W. ; Corey, Garth P.

Author_Institution

Dept. of Photovoltaic Syst. Applications, Sandia Nat. Labs., Albuquerque, NM, USA

fYear

1996

fDate

13-17 May 1996

Firstpage

1485

Lastpage

1488

Abstract

Knowledge of the charge efficiency of Pb-acid batteries near top-of-charge is important to the design of small PV power systems. In order to know how much energy is required from the photovoltaic array in order to accomplish the task of meeting load, including periodic full battery charge, a detailed knowledge of the battery charging efficiency as a function of state of charge is required, particularly in the high state-of-charge regime, as PV power systems are typically designed to operate in the upper 20 to 30% of battery state-of-charge. This paper presents the results of a process for determining battery charging efficiency near top-of-charge and discusses the impact of these findings on the design of small PV power systems

Keywords

battery chargers; lead; photovoltaic power systems; power system measurement; secondary cells; solar cell arrays; testing; Pb; Pb-acid batteries; battery charging efficiency; photovoltaic array; small PV power system design; top-of-charge; Batteries; Contracts; Laboratories; Optical coupling; Photovoltaic systems; Solar power generation; Sun; System analysis and design; Testing; US Department of Energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference, 1996., Conference Record of the Twenty Fifth IEEE

Conference_Location

Washington, DC

ISSN

0160-8371

Print_ISBN

0-7803-3166-4

Type

conf

DOI

10.1109/PVSC.1996.564417

Filename

564417