More Related Content
Similar to Wireless Power Transfer Technology
Wireless Power Transfer Technology
- 1. BY R.SRINIVASAN, DEEE, BE(EEE) WIRELESSPOWER TRANSMISSION
- 2. WIRELESS POWER TRANSMISSION Wirelesspower transfer or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link
- 3. BASIC CONCEPT In awireless power transmission system, a transmitter device, driven by electric power from source, generates a time-varying electro magnetic field ,which transmits power across space to a receiver device ,which extracts power from the field and supplies it to an electrical load.
- 4. WIRE TECHNOLOGY •As perstudies, most electrical energy transfer is through wires. •Most of the energy loss is during transmission On an average, more than 30% In India, it exceeds 40%.
- 5. WIRELLESS POWER TRANSMISSION •Reliable •Environmentally Lesssound •Efficient •To reduce the wiring. •Can be Used for short-range or long-range
- 6. HISTORY Wireless Power Transmission 3/21/20135 ⚫Nikola Tesla in late 1890s proposed WPT concept ⚫Pioneer of induction techniques ⚫The 187 feet tall tower ⚫Accessible to everyone ⚫Government closed tower
- 7. INDUCTIVE COUPLING • Primaryand secondary coils are not connected with wires. • Energy transfer is due to Mutual Induction Example : Transformer, • Wireless Charging Pad (WCP), electric brushes. • On a WCP, the devices are to be kept, battery will be automatically charged.
- 8. WITRICITY •This project isbased on RIC. •It was led by Marvin professor from MIT •In this project the energy was transferred wirelessly for a distance just more than 2m. • Efficiency achieved was around 40% •Researches for decreasing the field strength and to increase the range are in progress.
- 9. FAR-FIELD ENERGY TRANSFER • Itaims at high power transfer. • It can be a laser or microwave transmission. • It needs line-of-sight. • It is radiative in nature
- 10. MICROWAVE POWER TRANSMISSION ThePrimary components of Wireless Power Transmission are Microwave Generator, Transmitting antenna and. Receiving antenna (Rectenna). A.1 Microwave Generator: It may be a transmitter which emits microwave for mobile phone communication. Or a. converter which converts electrical energy into microwave.
- 11. LASER POWER TRANSMISSION Laserpower transmission (LPT) is one of the most promising technologies in the long-range wireless power transfer field. LPT research has been driven by the desire to remotely power unmanned aerial vehicles, satellites, and other mobile electric facilities.
- 12. RECTENNA •Stands for receiving antenna •Consistsof mesh of dipoles and diodes •Converts microwave to its DC equivalent
- 13. RECTENNA IN US •Rectenna in US receives 5000MW of power from SPS. • It is about one and a half mile long
- 14. PROJECTS BASED ONWPT • In 1993 a project was presented about wireless power supply in Alaska named "Alaska'21”. • The system used for this project consisted of a 2.45 GHz phased array design. The distances that should be bridged are between 1 and 15 miles.
- 15. ALASKA’21 • The GrandBassin project lead by the local university will supply electricity to a remote isolated mountain village. • A prototype was build and presented at the Wireless Power Transmission conference in 2001, which was held on the island.
- 16. DEVICES ON WIRELESSPOWER TRANSFER • 1978 J.G. Bolger made United States an electric vehicle powered with a system with the distance of 2meters and power of 20 kW. • In 1981 Panasonic Corporation Wireless charger for electric toothbrush. • In 2011 Samsung introduced Droid Chargeback for mobile phones.
- 17. CONCLUSION •In future transmissionwill be without wires. •It would be more efficient. •Low maintenance cost but high initial cost. •Better than conventional wired transfer. •Energy crisis can be decreased. •In near future, world will be completely wireless.
- 18. REFRENCES • www.google.com • www.wikipedia.com • www.siemens.com • www.spenergynetworks.co.uk • https://www.prnewswire.com/ • https://ieeexplore.ieee.org/ • https://www.researchgate.net/