Journal ArticleDOI
Accurate electrical battery model capable of predicting runtime and I-V performance
Min Chen,Gabriel A. Rincon-Mora +1 more
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TLDR
An accurate, intuitive, and comprehensive electrical battery model is proposed and implemented in a Cadence environment that accounts for all dynamic characteristics of the battery, from nonlinear open-circuit voltage, current-, temperature-, cycle number-, and storage time-dependent capacity to transient response.Abstract:
Low power dissipation and maximum battery runtime are crucial in portable electronics. With accurate and efficient circuit and battery models in hand, circuit designers can predict and optimize battery runtime and circuit performance. In this paper, an accurate, intuitive, and comprehensive electrical battery model is proposed and implemented in a Cadence environment. This model accounts for all dynamic characteristics of the battery, from nonlinear open-circuit voltage, current-, temperature-, cycle number-, and storage time-dependent capacity to transient response. A simplified model neglecting the effects of self-discharge, cycle number, and temperature, which are nonconsequential in low-power Li-ion-supplied applications, is validated with experimental data on NiMH and polymer Li-ion batteries. Less than 0.4% runtime error and 30-mV maximum error voltage show that the proposed model predicts both the battery runtime and I-V performance accurately. The model can also be easily extended to other battery and power sourcing technologies.read more
Citations
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Proceedings ArticleDOI
Comparative study and improvement of battery open-circuit voltage estimation methods
TL;DR: In this work, interpolation-based methodologies are presented which considerably reduce the average OCV estimation error over the entire SoC range, compared to state-of-the-art implementations.
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Optimal SoC Estimation Considering Hysteresis Effect for Effective Battery Management in Shipboard Batteries
TL;DR: In this paper, the effect of hysteresis on SoC estimation is considered and the differential evolution-based SoC estimator is applied to accurately estimate the SoC while minimizing the hystresis effect.
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Adaptive Sliding Mode Observer for Estimation of State of Charge
TL;DR: The design of an estimator-based on equivalent circuit for the state of charge of battery in order to some batteries behavior is presented and the ASMO robust observers are developed and compared in some simulations to emphasize the observer performance.
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The Influence of BMSs on the Characterization and Modeling of Series and Parallel Li-Ion Packs
TL;DR: This work analyzes the effects of a BMS on the characterization and modeling of series and parallel connections of Li-ion cell packs and shows that the single cell based approach gives poor results in comparison with a model that considers BMS effects.
Proceeding Series of the Brazilian Society of Computational and Applied Mathematics
TL;DR: This work studies the orbital motion of space debris around the Planet with real data from the 2-line element set provided by NORAD and the geopotential and atmospheric drag used as perturbations in the SGP4 model.
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