Design and Simulation of Cyclic Battery Tester

Abstract

The paper presents an approach to the modelling of a cyclic battery tester and contains observations about lithium-ion (Li-ion) batteries, charging/discharging procedures, conditions and protections which must be observed during the testing process. The main goal was to create and simulate a schematic which will be capable of cyclically testing Li-ion battery cells. Regulation of the final schematic is based on cascade connections of operation amplifiers, which work as a voltage source with current-limiting functions. The power part is created by two MOSFETs connected as a half-bridge. This topology allows current to flow in both directions (from and to the battery). Final simulation is supplemented by protections such as reverse polarity protection, short circuit protection and overvoltage protection during charging. Proper operation of the whole connection is demonstrated by the simulation outputs in the final section.

Improved Digital Twin of Li-Ion Battery Based on Generic MATLAB Model

“…According to the requirements, we want to test at least six battery cells together in one group. It means that at least six test modules will be connected to the master processor equipped with the HMI interface [44,45].…”

A Comprehensive Overview of the Impacting Factors on a Lithium-Ion-Battery’s Overall Efficiency

“…Section 4 of this publication contains the data collection and modelling of LIBs. Similar to the authors' approach, (Bilansky and Lacko, 2020) designed and simulated a cyclic battery tester, though the model used in their work is based on the MATLAB generic battery model, whereas the authors' model is an equivalent circuit based model using cubic spline interpolated datasets. Furthermore, the authors of this publication have built several simulation models, featuring different levels of precision that implement battery parameters measured in real driving scenarios (Guenther et al, 2021;Scholz et al, 2021), as well as precisely controlled battery test systems (Kremzow-Tennie et al, 2021).…”