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Battery Modelling and SOC Estimation of a LiFePO4 Battery
2016 International Symposium on Computer, Consumer and Control (IS3C), 2016The change rate of terminal voltage of a LiFePO4 battery is too small to be used to estimate state of charge (SOC) during discharging when the battery is within 10-80% SOC. A coulombic counting SOC estimation (Ah) method has the disadvantages of accumulated error and start point error.
Ming-Yang Ke, Yu-Hsiang Chiu, Chi-Yao Wu
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Energetical Modeling of Lithium-Ion Batteries
2007 IEEE Industry Applications Annual Meeting, 2007All electrochemical batteries are characterized by an electrical behavior which depends on temperature, state of charge and current. In the case of lithium-ion accumulators, the energetical behavior is moreover deeply marked by line effects, due to the porosity of both electrodes. This paper deals with investigations on accurate energetical modeling of
Urbain, Matthieu +2 more
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A lithium-ion battery modeling for a HIL-battery simulator
2013 International Conference on Computer, Control, Informatics and Its Applications (IC3INA), 2013A battery simulator is needed to test battery management systems (BMS) for electric vehicles. A new battery simulator called a Hardware in Loop (HIL)-battery simulator is build. In order to facilitate the electric battery model part of the HIL-battery simulator, a simple and accurate equivalent circuit model for LiFePO 4 batteries is defined.
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Modeling of rechargeable batteries
Current Opinion in Chemical Engineering, 2016Development of accurate, real time models for rechargeable batteries is essential for efficient battery management and their safe operation. This paper presents a short review on the various existing rechargeable battery models. We propose a new classification of the models as being first principles based, surrogate first principles based, data-based ...
Resmi Suresh +2 more
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Battery Management System Based on Battery Nonlinear Dynamics Modeling
IEEE Transactions on Vehicular Technology, 2008This paper presents a method of determining electromotive force and battery internal resistance as time functions, which are depicted as functions of state of charge (SOC) because . The model is based on battery discharge and charge characteristics under different constant currents that are tested by a laboratory experiment. This paper further presents
Antoni Szumanowski, Yuhua Chang
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Sensitivity analysis of lithium-ion battery model to battery parameters
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013Different models have been proposed so far to represent the dynamic characteristics of batteries. These models contain a number of parameters and each of them represents an internal characteristic of the battery. Since the battery is an entity that works based on many electrochemical reactions, the battery parameters are subject to change due to ...
Habiballah Rahimi-Eichi +3 more
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Mathematical modeling of lithium–sulfur batteries
2022Modeling is the basis of research on lithium-sulfur batteries. The model can characterize the dynamic characteristics of lithium-sulfur batteries and provide references to theoretical research and applications. The model is important to managing and controlling the battery and related to its state estimation, such as the states of charge, health, and ...
Wang, Shunli +4 more
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Modeling and SOC estimation of LiFePO4 battery
2016 IEEE International Conference on Robotics and Biomimetics (ROBIO), 2016In order to estimate the state of charge (SOC) of LiFePO4 battery more accurately, an improved Extended Kalman Filter (EFK) algorithm is proposed to estimate the parameters in the least squared identification model. A second-order RC equivalent circuit is used as the battery model, and an additive term is introduced into the state equation for real ...
Peng Cheng +3 more
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PCM and the thermal model in battery design
2019 IEEE International Conference on Electro Information Technology (EIT), 2019We report the effects in forced convection boundary condition to model the heat generated in Li-ion cell and the battery pack, using CFD technology (Computational Fluid Dynamics) in ANSYS fluent. The battery pack designs were analyzed and simulated on two different modes.
Umang Selokar, Qiquan Qiao, Huitian Lu
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Modelling of polymer batteries
Solid State Ionics, 1989Abstract We analyze theoretical performance limits of secondary polymer batteries based on electroactive polymer electrodes and solid or liquid organic electrolytes. A simple expression is given relating the energy per weight and volume density to properties of the materials used.
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