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Design of battery charging system update for glider launcher

Rosiński Wojciech Aleksander, Potrykus Szymon, Michna Michal Sergiusz

Archives of Electrical Engineering

2020

Vol. 69, nr 2

259--269

This paper presents an innovative solution for increasing life of lead-acid batteries used in a glider launcher. The study is focused on upgrading a charging system instead of a costly full replacement of it. Based on literature review, the advanced three-stage charging profile was indicated. The new topology of the power converter was proposed and a simulation model was developed. A simulation study was performed which leads to a conclusion that the suggested solution can be successfully applied to the studied device. As a result, the conclusion of this work is the recommendation for modification of the launching system with an additional converter enabling 3 stage charging.

Modelling of Li-ion batteries using equivalent circuit diagrams

Biechl H., Rahmoun A.

Przegląd Elektrotechniczny

2012

R. 88, nr 7b

152-156

This paper presents the fundamentals of a method how to determine the state of charge (SOC) of lithium-ion batteries on the basis of two different equivalent circuit diagrams and an extended Kalman filter (EKF). It describes how to identify the parameters of these circuits by characteristic measurements. The comparison between measurement and computation results shows a good accordance. In the first step the dependency of these parameters on the temperature and on the battery age is neglected.

W artykule przedstawiono podstawy metody pozwalającej określić stan naładowania (SOC) akumulatorów litowo-jonowych na podstawie dwóch różnych schematów zastępczych i rozszerzonego filtru Kalmana (EKF). Opisano, jak zidentyfikować parametry akumulatorów na podstawie pomiarów ich charakterystyk. Porównanie wyników pomiarów z wynikami symulacji wykazuje zgodność. W pierwszym etapie pominięto zależność parametrów akumulatorów od temperatury i od czasu użytkowania.

NiMH battery operation analysis for hybrid

Szumanowski A., Yuhua Ch.

Zeszyty Naukowe Instytutu Pojazdów / Politechnika Warszawska

2006

z. 4/63

103-110

This paper presents the method of determining battery state of charge according to battery modeling results. From battery modeling, electromotive force (EMF) and battery internal resistance as functions of state of charge (SOC) are obtained. The model is based on constant temperature. How temperature influences on battery performance is considered in this paper. This influence of temperature on battery performance is analyzed according to laboratory tested data and the theoretical background for calculating SOC is obtained. The algorithm of battery SOC indication is depicted in details. The algorithm of battery SOC "On-line" indication considering the influence of temperature can be easily used in practice by microprocessor.