ABSTRACT

Over the next years, there will likely be a growing number of people who retire batteries to store energy due to the rapid advancement and broad acceptance of electric vehicles (EVs). Advanced DC-DC converters, which include boost, buck, and buck-boost configurations, are the main participants in this shift. It is crucial to acknowledge that these converters face constraints in output voltages at elevated duty cycles, attributed to heightened stresses on components. Consequently, repurposing retired battery packs for energy storage systems becomes significant, especially for supporting demand response operations in environments with a considerable reliance on renewable energy sources. The exploration of integrating retired battery packs into energy-storage systems involves leveraging MATLAB/Simulink for simulating the DC-DC converter, focusing on the seamless merging of two variable input supplies. Various DC-DC converters designed for electric vehicle charging applications are the focus of this study performance examination, offering valuable insights into their efficiency, reliability, and applicability within the evolving landscape of energy storage and electric vehicle technologies.