BUS high current battery model

Author

Kajs, J.P. ; Zowarka, R.C.

Author_Institution

Center for Electromech., Texas Univ., Austin, TX, USA

Volume

29

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

1003

Lastpage

1008

Abstract

An empirical model for voltage and equivalent series resistance (ESR) has been developed for lead acid batteries used as a pulsed power source. During the design of the battery upgraded supply (BUS) for Eglin Air Force Base, the Center for Electromechanics at the University of Texas at Austin (CEM-UT) developed a model for the batteries to be used in this system. BUS is a 5 MA, 500 MJ inductive power supply charged by batteries for use as a railgun power supply. A series of tests was performed to determine the driving voltage and ESR of the batteries for discharge times from 2 to 10 s and current levels from 500 to 2500 A. A model for voltage and ESR was obtained from these tests. The methods used and sample data from the tests are presented. The main factors affecting battery voltage and ESR are discussed, and the models developed for the batteries tested are described. It is concluded that the proposed empirical model can be used to predict the performance of Pulsar batteries as long as the currents are around 500 to 2500 A and the timeframes are from 2 to 10 s

Keywords

electromagnetic launchers; power supplies to apparatus; pulsed power technology; secondary cells; 2 to 10 s; 5 MA; 500 MJ; 500 to 2500 A; EM launchers; Pb acid secondary cells; Pulsar batteries; USA; battery upgraded supply; charging; empirical model; equivalent series resistance; inductive power supply; performance; pulsed power source; railgun; testing; voltage; Batteries; Paramagnetic resonance; Performance evaluation; Power supplies; Power system modeling; Predictive models; Pulsed power supplies; Railguns; Testing; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.195716

Filename

195716