Second Life for Commercial Vehicles Onboard Charging Electrical Power System

Examensarbete för masterexamen
Master's Thesis
Electric power engineering (MPEPO), MSc
Voppu Muralikrishna, Ajay Krishna
Ganesh, Viswanathan
Abstract The study begins by analyzing market studies to gauge the demand for repurposed OCEPS and this evaluation aims to determine the market’s readiness for such a transition. Moreover, the research conducts a thorough examination of existing OCEPS designs and their limitations. This analysis is crucial for proposing improvements that enhance overall efficiency, calculate losses accurately, and optimize performance. The intention is to ensure that repurposed DC chargers not only match technical requirements but also surpass previous models in energy efficiency and reliability. The study begins by examining the state of onboard charger technology highlighting its crucial role in EV performance and the challenges it poses in terms of environmental impact and economic sustainability. Recognizing that onboard chargers often outlast the vehicle this investigation explores the potential for repurposing or reusing these chargers for purposes thereby contributing to a more circular and sustainable economy. A significant contribution of this study is the development of a sustainable business model tailored to the repurposing process. This model seeks to combine economic feasibility with circular economy principles by leveraging market opportunities and addressing environmental concerns through efficient resource utilization and waste reduction. It then delves into the evaluation of current designs and the suggested improvements, highlighting potential enhancements in technical efficiency. Lastly, the discourse revolves around the innovative sustainable business model, which harmonizes economic viability and ecological responsibility. The research findings not only reveal the potential of onboard chargers but also propose a systematic framework for identifying and implementing second life opportunities, within the electric mobility ecosystem. The study’s implications go beyond the concerns of EV technology. Provide insights, into broader sustainability practices and the circular economy. If stakeholders, in the electric vehicle industry embrace the idea of giving onboard chargers a life they can contribute to a sustainable future while tackling the challenges posed by electronic waste. In summary, this thesis explores the conversion of OCEPS into DC chargers through a circular economy lens. By evaluating market demand, improving designs, and proposing a sustainable business model, the study bridges technological advancement and sustainability, fostering economic growth while respecting environmental balance.
Keywords: Circular Economy, Sustainability, Economic Feasibility, Waste Reduction, Power Electronics
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