Electric vehicle charging infrastructure with three-way automatic switch.

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Ashesi University
Electric Vehicle (EV) technology is one of the steps in battling climate change through electrification of transport systems. Great advances in energy to size and energy to cost ratios have presented a great opportunity allowing all auto manufacturers to jumped for the idea of electrification as the future of transportation. The journey for better charging technologies is still a very important area of research. Among the main challenges in electrification of transport is inadequate charging stations on road networks to provide quick and reliable charging whenever EVs run out of power. This problem hinders people from adopting EVs especially in sub Saharan Africa where unreliable power supply and unstable grid energy infrastructure have become setbacks to deployment of current fast charging technologies. This capstone project showed that complimenting grid power with alternative decentralized energy sources will allow provision of reliable power to charging stations for charging of EVs. In this project eagle CAD is used in designing power switching and system controller to interface with pilot signaling, GFCI and relay circuits in controlling the charging of EV. Also, monitoring of the designed charging station as an IoT, a web application was built to monitor power sources and their frequency of switching on the main power circuit. While testing of most of the design modules on breadboard produced expected results, eagle designs of main power and system controller circuits generated 100% and 98% routed complete working circuits.
Capstone Project submitted to the Department of Engineering, Ashesi University in partial fulfillment of the requirements for the award of Bachelor of Science degree in Electrical and Electronic Engineering, April 2019
Electric vehicle, climate change, charging technologies, electrification of transport