A new dynamic model for lead-acid batteries
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- Author(s): N. Jantharamin 1 and L. Zhang 1
- Conference: 4th IET International Conference on Power Electronics, Machines and Drives (PEMD 2008)
View affiliationsSource: 4th IET International Conference on Power Electronics, Machines and Drives (PEMD 2008), 2008 p. 86 – 90
Affiliations: 1: Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK
- DOI: 10.1049/cp:20080488
- ISBN: 978 0 86341 900 3
- Location: York, UK
- Conference date: 2-4 April 2008
- Format: PDF
A new equivalent circuit model for lead-acid batteries is presented, taking into account internal losses due to self- discharge and polarisation effect within a battery. This model is compact in describing both the ohmic voltage drop and overvoltage effects in a combined form of polarisation effect, using a single equivalent resistance for each operating mode. The battery electromotive force is represented by a dependent voltage source whose value changes with the state of charge. The circuit parameters expressed in non-linear function forms are used to describe the charging and discharge characteristics. The model has been derived from the manufacturer's data and validated by experiment.