WITRICITY ABSTRACT PDF
ABSTRACT. Can we imagine the life without electrical wires? From now answer to this question is yes. The method proposed in the present paper called. PDF | Consumers of electric power always want fastest most, high efficient & faultless technology of power transmission everywhere. For this many concepts, research papers, patents are available on witricity but the market Show abstract. The method proposed in the present paper called ―Witricity ―will facilitate to Abstract:––Can we imagine the life without electrical wires?.
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Witricity Abstract - Download as Word Doc .doc /.docx), PDF File .pdf), Text File .txt) or read online. Abstract- Can we imagine the life without electrical wires? Wireless electricity or witricity is the transfer of electric energy or power over a. WiTricity: A Wireless Energy Solution Available at Anytime and Anywhere Abstract – Electrical power is vital to everyone and is a clean and efficient energy .. resourceone.info, last.
The arrangement essentially employs an alternator coupled to a prime mover is driven by the energy obtained from various sources such as burning of fuel , pressure of water , force of wind etc.
For example chemical energy of a fuel can be used to produce steam at high temperature and pressure. The steam is fed to a prime mover which may be a steam engine or steam turbine. The turbine converts heat energy of steam into mechanical energy.
Which is further converted into electrical energy by the alternators. Similarly other form of energy can be converted into Electrical energy by employing suitable machinery and equipment.
Transmission:The conveyance of electric power from a power station to consumer premises is known as electric supply system. An electric supply system consists of three principal components.
Witricity (WIRELESS ELECTRICITY) Seminar Abstract, Report
They are power station, transmission lines and distribution lines. Electric power is produced at the power stations which are located at favourable places, generally quite away from consumers. It is then transmitted over large distance to load centres with the help of conductor is known as transmission lines.
Finally it is distributed to a large number of small and big consumers through a distribution network. The electric supply system can be broadly classified into D. C system. Now a days 3phase 3wire a. However, distribution of electric power is done by 3phase 4wire a. Thus, alternate methods for WPT have been proposed and researched.
While efficiency of conversion of power to and from microwaves has been discussed above, one of the variables of transfer through the use of microwaves is the media through which it travels. Thus, the ability to efficiently transfer microwaves through open space is dependent on whether or not a clear line of sight exists between source and target.
Factors such as weather and physical objects can obstruct the line of sight between source and target and can inhibit the transfer of power via microwave [ Karalis07 ]. Additionally, as discussed in the case study of the charging of the electric vehicle above, beamforming and focusing the microwave radiation is vitally important for an efficient WPT system [ Shinohara13 ].
It follows, therefore, that the transfer of power from a source to a moving object, especially at longer distances, would be extremely difficult to do so with a highly directional antenna, and would be inefficient to the point of impracticality with an omnidirectional antenna.
Indeed, the transference of microwave radiation through free space is a major design consideration in MPT systems. In the charging of the EV example given above and depicted in Figure 4, a great deal of effort was made to ensure that the magnetic beam formed by the system was concentrated on the antenna, thus creating a guard area outside of which the power level was low enough for human exposure [ Shinohara13 ].
A graphical example is depicted below in Figure 6. Figure 6: Depiction of microwave transmission and guard areas of MPT [ Shinohara13 ] The precision with which an MPT system must be implemented, therefore, is extremely important.
This limits the use of an MPT system of high energy to very controlled environments, making difficult its use in the power transfer to moving vehicles.
With these considerations in mind, some alternate mechanisms for WPT have been proposed. HR-WPT relies on magnetic resonance to transfer power wirelessly from a source to a target. Beamforming to focus microwave radiation from a source to a receiver, when one or both are in motion, is difficult to do efficiently and safely.
Tangentially, MPT requires a line of sight in order to transfer energy via magnetic radiation successfully. Since magnetic resonance does not require line of sight, the transfer of power from source to target is uninhibited by weather or obstructing objects [ Karalis07 ].
For example, magnetic coils could be placed beneath the pavement of a highway, constantly charging cars as they drive [ Lee13 ]. Each of these coils contains a magnetic field that couples with the receiver in a particular way to transfer power wirelessly [ Kim10 ].
In Figure 7 below, a working model is shown, with a mobile vehicle travelling over a track inlaid with magnetic transmitters, powering the vehicle as it moves.
In this study, the UAV acts as the source itself, with the researchers positing a system of sensors that need to be charged by the UAV periodically, as in underwater sensors that collect data and surface every so often to be charged [ Griffin12 ]. In contrast to microwave radiation being transmitted in free space, magnetic resonance field levels of the HR-WPT system are kept below the established level for safe human exposure, and match existing technologies such as cellphones and Bluetooth [ Kesler13 ].
The discussion began by describing and defining the fundamental aspects of the MPT system. This was followed by a look at the many applications of MPT to wirelessly transfer power from a source to a target, both in practical and near future applications and in theoretical applications for the future.
WPT has the potential to completely disrupt the way that mobile devices, from cellphones and laptops to cars and aerial vehicles, operate and obtain energy.
The future of energy is the untethering of devices from a power cord to realize the freedom of mobile technologies. References: [ Reddy13] M.
Electric power is produced at the power stations which are located at favourable places. Now we discusses about it. An electric supply system consists of three principal components. Now a days 3phase 3wire a.. The electric supply system can be broadly classified into D. C system. It is then transmitted over large distance to load centres with the help of conductor is known as transmission lines.
They are power station.
Finally it is distributed to a large number of small and big consumers through a distribution network. In this model source and load are in Magnetic resonance so there is low power loss.
VILLUPURAM DEPARTMENT OF EEE
The experimental scheme consists of two Self-resonant coils. The new concept was introduced. As it is in Radiative mode. Due to line transmission there are huge amount of loss will be there so to avoid these losses.
Self-resonant coils rely on the interplay between distributed inductance and distributed capacitance to achieve resonance. Wireless energy transfer would be useful for many applications as above and they need midrange energy.
Now a days there is a Rapid development of autonomous electronics like Laptops. One coil source coil is coupled inductively to an oscillating circuit.
House-hold robots and all those devices typically rely on chemical energy storage Battery As they are becoming daily needs to present generation. In this method of transmission the efficient midrange power transfer concept is Witricity.
Further improvements in this method of power transmission will lead to minimized loss network in the distribution we conclude that this is an high performing power transmission.
So no overheating occurs because of different voltages. Retrofitting old equipment or purchasing new equipment could become a very expensive endeavour. Significant decluttering of office space. Reduction of e-waste by eliminating the need for power cords.
Need more light in your office. No need for meter rooms and electrical closets.In this model source and load are in Magnetic resonance so there is low power loss.
All these forms can be converted into electrical energy by the use of suitable arrangements. Importantly, the MPT system depicted has a high density with respect to the forming of the beam, and since the beam is highly focused, thus it does not create a large area of microwave radiation which could potentially be unsafe for human exposure [ Shinohara13 ]. This limits the use of an MPT system of high energy to very controlled environments, making difficult its use in the power transfer to moving vehicles.
The arrangement essentially employs an alternator coupled to a prime mover is driven by the energy obtained from various sources such as burning of fuel.
Thus, alternate methods for WPT have been proposed and researched.
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