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The objective of this project is to design a 3 kW nickel‐metal hydride bidirectional battery
charger with power factor correction. This electronic power converter is designed to
charge batteries with energy from AC mains and also from a solar or wind energy sources,
therefore it must be able to transfer energy from the renewable energy source to the net in
case of excess.
This battery charger is designed as a part of wider project: “Sustainable Transportation
Solution for Auto Rickshaws”.
Conventional high power battery chargers have two main problems:
• Bad power quality that affects the electric grid, and would be a serious problem in
the context of a wide net of battery charged Rickshaws.
• Non constant current output which has been proven to reduce battery life and
The objective of this project is to solve both these problems and provide a compact
solution designed for a real application.
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