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Modelling and simulation of an electrical vehicle battery. Prediction of the residual capacity in a sealed lead-acid battery

机译：电动汽车电池的建模与仿真。预测密封铅酸蓄电池的剩余容量

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A good battery model is the basis of the development of an accurate state of charge observer and is a condition for optimal battery management. The lead-acid battery is by far the most used type due to its reasonable performance at low cost. The chemical reactions inside a lead-acid battery can be represented to a reasonable level of approximation by means of an electrical equivalent. The components are time-varying, non-linear and temperature dependent. This report presents a dynamic model of the lead-acid battery combined with a Kalman observer. The model take time-variations and non-linearity into consideration. Suggestions are made concerning how to include temperature dependence as well. The results from the model are tested against laboratory and in-vehicle measurement and show good agreement. A comparison with more simplified models is made which shows that these can be satisfactory under certain conditions. (41 refs. 68 figs., 10 tbls.) (au). (ERA citation 17:033687)

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