Dhanbad: A research group of the electrical engineering department of IIT (ISM), Dhanbad, has developed the model of a hybrid renewable energy driven bi-directional wireless charging system that ensures charging of electric vehicles in static as well as dynamic conditions.
Rajni Singh, a professor who is also the dean (media and branding) of the institute, informed that the new wireless charging system has already undergone trial at the laboratory scale and enables charging of e-vehicles through renewable sources of energy, including solar and wind energy, and simultaneously allows charging from the power grids.
She said, “The system enables dynamic charging through renewable energy during daytime from sunlight and electricity drawn from the power grids at night.”
The system is developed by a team under Pradip Kumar Sadhu, a professor in the electrical engineering department. “The patent application for this hybrid renewable energy driven bio-directional wireless system has already been filed,” Sadhu said.
“It has an added feature of being adjustable to increase or decrease in height according to a vehicle ensuring the charging of lower height as well as higher height (ground clearance) of the vehicles and we are further planning to make the technology adjustable to the length of a vehicle,” he added.
The research group comprises faculty members, including associate professors Nitai Pal, Kartick Chandra Jana and Arijit Baral, assistant professor Anirban Ghoshal, besides research scholar Anik Goswami and former M Tech student Sonal Mishra.
‘Wireless charging will cut vehicle price’
The group has suggested the development of a dedicated road infrastructure equipped with electrical coils laid underneath the road for ensuring the power transfer to the coil attached to the lower portion of a vehicle. “The newly developed model of wireless charging system also allows transfer back of the extra stored power charged by the battery of the vehicle to the grid and thus help in earning power credits for the transferred power to grid which can be utilized later, Sadhu said. “This system is revolutionary as it will reduce the battery size, thereby cutting down cost of a vehicle.”
Professor Nitai Pal said, “The wireless charging system was developed to expand the driving range for electric vehicles to avoid frequent charging at charging stations and as the focus of the Centre is on replacing traditional vehicles with electrical vehicles by 2030, this system is in direction of realizing that plan.”
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