zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program
Igor Džaić (Author), Klemen Zelič (Mentor)

Abstract

Litij-ionske baterije so ključne za sodobne naprave, njihovo delovanje pa upravlja sistem BMS, ki temelji na matematičnih modelih. Ti pogosto ne vključujejo napetostne histereze, kar zmanjša natančnost simulacij. Namen naloge je razvoj in parametrizacija modela z vključeno histerezo OCV, temelječega na Theveninovem vezju. Model, implementiran v Pythonu, je bil optimiziran z diferencialno evolucijo, rezultati pa kažejo do 41,51 % izboljšanje natančnosti pri Samsung bateriji in 19,32 % pri LG bateriji.

Keywords

diplomske naloge;litij-ionske baterije;OCV;histereza;modeliranje;parametrizacije;python;diferencialna evolucija;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [I. Džaić]
UDC: 621.352:539.98(043.2)
COBISS: 221294595 Link will open in a new window
Views: 81
Downloads: 30
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Other data

Secondary language: English
Secondary title: Development, implementation and parametrization of Li-ion battery model with hysteresis open circuit voltage
Secondary abstract: Lithium-ion batteries are essential for modern devices, with their operation managed by a BMS system based on mathematical models. These often do not include open-circuit voltage hysteresis, reducing simulation accuracy. The aim of the thesis is to develop and parameterize a model with integrated OCV hysteresis, based on a Thevenin circuit. The model, implemented in Python, was optimized using differential evolution, with results showing up to 41.51% accuracy improvement for Samsung batteries and 19.32% for LG batteries.
Secondary keywords: thesis;lithium-ion batteries;OCV;hysteresis;modeling;parametrizations;python;differential evolution;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XI, 36 f.
ID: 25551925