Lead Acid Battery Pack Charging Optimization
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2015, Vol 39, Issue 39
Abstract
Still used as a rechargeable power sources, rechargeable batteries pack require attention primarily to ensure higher life operating. One of the factors that influence lifespan is the process of charging and discharging. For batteries is manifested in the so-called memory effect which manifests itself by decreasing the operating voltage, even when was loaded to its maximum capacity. The article presents this issue but also offers a solution direct applicable for lead-acid batteries. The principle has based on reducing the number of charge and discharge processes in a certain time. So the hysteresis characteristic becomes wider and the time between switching from charge mode in the discharge and vice versa is higher. Analysis of three algorithms, step-by-step set of operations, and implementation in an experimental device is the main goals of paper. Optimization technique represents here to maximize battery lifetime. The device developed has a microcontroller and proves useful with minimal changes in any situation, by replacing the existing or interposing circuit between the power source and battery. Designed circuit can have easily adapted to correspond for other types of batteries. It can integrate with minimal changes, additional functions such as current battery measure and temperature.
Authors and Affiliations
Constantin-Daniel Oancea, Florin Calin
Keywords
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