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Estimating the state of charge of a battery
IEEE Transactions on Control Systems Technology, 2004This brief considers the state of charge (SOC) estimation problem for electrochemical batteries. Using an electric circuit model of the battery given in the literature, it is shown how the open-circuit voltage (which is directly related to the SOC) can be estimated based on the terminal voltage and current measurements provided there is sufficient ...
John N. Chiasson, Baskar Vairamohan
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State of charge estimator for NiMH batteries
Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2003A state of charge estimator for Nickel-Metal Hydride batteries, suitable for hybrid vehicles automotive applications, is proposed. The estimator is based on a statespace dynamic model of the battery which is obtained by modeling the kinetic of reactions and the diffusion phenomena.
Barbarisi O +4 more
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2021 IEEE Second International Conference on Control, Measurement and Instrumentation (CMI), 2021
Accurate state-of-Charge (SOC) estimation of supercapacitor is very crucial for real-time energy management and control of the energy storage device. This paper deals with performance comparison and analysis of the two most commonly used SOC estimators, namely Extended Kalman Filter (EKF) and Unscented Kalman Filter (UKF) for remaining charge ...
Saha, Manika +2 more
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Accurate state-of-Charge (SOC) estimation of supercapacitor is very crucial for real-time energy management and control of the energy storage device. This paper deals with performance comparison and analysis of the two most commonly used SOC estimators, namely Extended Kalman Filter (EKF) and Unscented Kalman Filter (UKF) for remaining charge ...
Saha, Manika +2 more
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State of charge estimation for electrical vehicle batteries
2008 IEEE International Conference on Control Applications, 2008Lithium ion batteries play an increasingly important role as high-rate transient power sources for hybrid electric vehicles, cycling around a relatively fixed state of charge (SOC). A crucial step in enhancing the performance of these batteries is the estimation of the state of charge as a function of the load.
Shriram Santhanagopalan, Ralph E. White
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State of charge estimation and battery balancing control
2015 54th IEEE Conference on Decision and Control (CDC), 2015In this paper, we propose an algorithm to solve the balancing problem of multi-cell battery systems consisting in the equalization of all cells state of charge (SoC). A nonlinear cell model is presented and experimental LiFePO4 battery cell parameters are used.
Andre Abido Figueiro +2 more
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Adaptive state of charge (SOC) estimator for a battery
2006 American Control Conference, 2006This work proposes an adaptive least-squares estimation strategy to determine the state of charge (SOC) for an electro-chemical battery. An estimation analysis is presented which proves that under a set of qualifying conditions, that the SOC of the battery can be estimated.
Michael L. McIntyre +3 more
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On battery State of Charge estimation: A new mixed algorithm
2008 IEEE International Conference on Control Applications, 2008A new SoC estimation algorithm is presented. The estimation is performed mixing the Coulomb-Counting and the Model-Based estimation approaches. The algorithm was tested on a brand new lithium-ion cell which use a nanoscale technology able to grant a more powerful and safer lithium-ion battery than the batteries currently on the market. The cell, called
CODECÀ F +2 more
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Combination Algorithm for State of Charge Estimation
2013 International Conference on Communication Systems and Network Technologies, 2013When using the Ah counting method to estimate state of charge of battery on electric vehicle, it is difficult to measure the initial SOC, and will bring accumulated errors. In order to solve the above problem, we design an algorithm which integrates the open circuit voltage method (OCV), Kalman filter (KF) and Ah counting method (Ah) in this paper ...
null Bo Zhang +2 more
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Li-ion battery parameter estimation for state of charge
Proceedings of the 2011 American Control Conference, 2011Battery state of charge (SOC) is a critical parameter for the control of propulsion systems in plug-in hybrid electric vehicles (PHEV) and electric vehicles (EV). As SOC is not measureable during vehicle operation, an onboard adaptive algorithm is developed in this paper.
Xidong Tang +3 more
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A new method to estimate the state of charge of the green battery
Microelectronics Reliability, 2017Abstract Green batteries have attracted great attention due to the characteristics of its high performance and non-pollution. In order to understand the working condition of the batteries and get a better estimation effect on the state of charge (SoC), the following works had been done in NMC18650 lithium ion battery.
Ling-Ling Li 0001 +3 more
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