IEEE Amrita


Wireless Power Transmission



DATE: 7-10-2017



The IEEE IAS & PES joint student branch chapters of Amrita School of Engineering, Bangalore, under the able guidance of DR. K. Deepa along with all the coordinators conducted a special talk on the topic “WIRELESS POWER TRANSMISSION”.

The guest speaker was Mr. Adnan Bohori, Research Professional at General Electric India Technology Centre.

The technology for wireless power transmission is in the forefront of electronic development.

Mr Adnan Bohori explained that the aim of wireless power transfer is to allow electrical devices to be continuously charged and lose the usage of a power cord. Although the idea is not widely implemented, its research dates back to 1850’s. By eliminating the use of physical connectors and cables, wireless charging provides a number of efficiency, cost and safety advantages over the traditional charging cable. The basics of wireless power involves the transmission of energy from a transmitter to a receiver via an oscillating magnetic field. To achieve this, Direct Current supplied by a power source, is converted into high frequency Alternating Current by specially designed electronics built into the transmitter. The distance at which the power is transferred can be increased if the transmitter and receiver coils are resonating at the same frequency. He elucidated regarding the different methods of wireless power transfer such as magnetic resonance and capacitive coupling. The charging of the devices depends upon the amount of power required by the device, based on which the wireless power transfer is divided into different levels of charging.

He further discussed that wireless power transfer in Electric Vehicles is currently one of the hottest topics which is in motion. When it comes to wireless charging in Electric Vehicles there are many challenges to achieve efficient wireless power transfer such as size, cost, and dependence on alignment, range, and efficiency. Wireless power transfer for Electric Vehicles is achieved by using inductive plates embedded onto to the roads and the vehicle itself where the one on the road acts like a transmitter and the one present at the bottom of the vehicle is the receiver thus enabling wireless power transfer between two mediums. He concluded the talk by explaining the fact that Electric Vehicles are the future of the transport industry in order to drive the world towards the usage of clean energy, but need of such achievements will also led to large scale electricity production which may lead to grid instability problems. He explained that in order to solve such problems many world leaders are adopting the TRIZ methodology that deals with the  problem solving method based on logic and data, not intuition, which accelerates the project team’s ability to solve these problems creatively. TRIZ also provides repeatability, predictability, and reliability due to its structure and algorithmic approach.

With his gargantuan amount of knowledge in the field of Wireless Power Transfer, Mr Adnan Bohori enthralled the audience from the get go. The talk was indeed very interactive and informative and sure to have tickled the minds of the students and the academic professionals present to carry research and innovate in such field of work.

A total of 35 students attended the talk out of 21 were IEEE members.