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Wireless Power Transmission system

Chandra Kumar Sahu

Assistant Professor

Department of Electrical Engineering

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Inductive power transfer, another name for wireless power transmission, can be utilized to transport power across long or even short distances without the usage of cables. Compared to other technologies, this one offers efficiency, speed, and low maintenance costs. Additionally, it enables self-charging for portable electronics so they never need to be connected into a power outlet. In contrast, this system uses a lot less power than traditional electrical transmission methods. The primary purpose of wireless power transfer is to eliminate the cable restriction and enable continuous charging of electrical equipment. Microwaves, resonance, and solar cells are the three basic technologies employed in WPT.

The first WPT tests were carried out by Nikola Tesla, who invented AC electricity. His inspiration originated from the thought that the earth itself functions as a conductor and may transport a charge over its surface. Tesla’s experiments merely transferred electricity; they did not generate it. Nevertheless, his theories can be used to address the current energy dilemma. Although each application has certain downsides, they all have the ability to help the globe in its dwindling search for a power generation alternative.

Convenient technology is a commonplace in today’s world. However, another issue that arises from portability is power. Since around maximum portable instruments run on batteries, they will recharged by using wired chargers. A mobile phone, digital camera, voice recorder, mp3 player, or laptop could now receive its power via WPT technology rather than being plugged in. Even if wireless power transmission is useful and more advantageous to daily life of human.



Application of Wireless Power Transmission –


  1. Electric Vehicles


Wireless charging systems can provide electricity to rechargeable battery electric and hybrid automobiles. Over a 20 cm distance, these devices are capable of delivering 3.3 kW with exceptional efficiency. Utilizing this technology allows for reliable and effective wire-free power delivery to electric automobiles.


  1. LED Lighting


LED (light emitting diode) lights that use wireless power transmission allow us to wirelessly power our gadgets, eliminating the requirement of batteries.


  1. Defense System


Wireless charging will be used in defense systems, designers are creating innovative designs to enhance the dependability, ergonomics, and safety of electronic gadgets.


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