eva‎luation of lithium battery equivalent circuit models with experimental approach

2/19/2023 12:00:00 AM

In electric and hybrid electric vehicles, batteries are one of the most important components of these vehicles. Among the batteries used in these vehicles, lithium ion batteries are the most used in the energy storage system of these vehicles due to their higher energy density and long life. However, it should be borne in mind that the use of these batteries has a major problem, and that is that their excessive charging and discharging reduces the life of these batteries. Therefore, what is most important is how to maintain and manage the use of these batteries in the car. Therefore, to use them correctly, provide an accurate and simple battery model, which can model the dynamic behavior of the battery to analyze and A better examination of the actual behavior of the battery is essential. This importance caused the first and second order model of electrical equivalent circuit to be selected in this dissertation due to its simplicity and high accuracy. Also, for localization and internal use, batteries with high ampere specifications and capacity available in the automotive industry were used for testing. Using the experimental results obtained from these tests, the parameters of the first-order model were identified and the parameters of the second-order model were identified by simulation in MATLAB and with Simulnik optimizer, which the results show the proper performance of the optimizer.

باتري ليتيوم يوني , مدل مدار معادل الكتريكي , سيستم مديريت باتري , پارامترهاي مدل باتري , شبيه‌سازي باتري

Lithium ion battery , Electrically equivalent circuit model , Battery management system , Battery model parameters , Battery simulation

Tohid ghorbani

Masoud Dahmardeh-Gholam Reza Molaeimanesh