INTRODUCTION…….. Wireless Power Transmission
May 06, 2015
INTRODUCTION……..
Wireless Power Transmission
WIRELESS POWER TRANSMISSION
• Wireless power transmission is the concept of
transferring the electrical energy from one place to other
without any physical path such as wires.
• It consists of the source and target.
• Source is the coil which contains oscillating magnetic
field.
DIFFERENCE B/W WIRELESS POWER
TRANSMISSION AND COMMUNICATION
SYSTEMEfficiency :
Maxwell's Equations indicate that the electromagnetic field and its
power diffuse to all directions. Though we transmit energy in a
communication system, the transmitted energy is diffused to all
directions. Though the received power is enough for a
transmission of information, the efficiency from the transmitter to
receiver is quiet low.
SPECIFICATION
Frequency amplifier may be in the following form
RF Amplifier
Tesla coil
Magnetic resonance coupling
Oscillator
Output voltage(from source)
5-10volt(ac or dc)
Output frequency(from source)
2 MHz
Rectenna (Receiver part)
FUNCTIONS Works on the principle of EMI
Works in the proximity of source and target
Energy is transmitted at very high frequency to reduce
losses
Frequency amplifier is used
Works at very high bandwidth
MPT Laboratory Experiment in
First Ground-to-Ground MPT Experiment
TESTIMONIAL
TESTIMONIAL
APPLICATIONS
BENEFITS
Wherever there is conventional mode of power transmission used, WPT
can be applied, viz
Household Devices (vacuum cleaners, Induction cookers, Lamps, TV,
Fridge etc)
Mobile Devices( PDA’s Laptops, i-pad/phone/pod)
Industries
Implanted Medical Devices (Pacemaker)
Multiplexes
Where to apply WPT?
Keeping in mind the given constraints, such as :1. Distance2. No. of Devices to be used(the total power required)3. Amount of consistent power available
Where to apply WPT?
Home automation system
Easy access to home appliances
Virtual charging of laptops, I-pad and other mobile
electronic devices
Wireless electric supply in the houses from main
source to daily used electrical equipment
NO Batteries (excluding some devices where batteries have to be there as the
alternate power source like Mobiles, Electric Cars, Calculators, Tablets, etc)
NO Wires == Greater Mobility
Minimum Power Loss (say in switches, wires, due to heating effect or voltage drops)
Environment Friendly(Green Solution)
No Harm to Human life reported due to magnetic flux till now
Constant flow of power
Reduction in carbon footprint
Safety from short-circuits
Pros
Most Importantly: “1kWhr of Energy saved at home means 3 kWh of energy saved at the power station”.
CONCLUSION
Electrical energy can be economically transmitted without wires
to any terrestrial distance. The economic transmission of power
without wires is of crucial importance to man. It will enable him
to dispense with innumerable causes of sinful waste. This
technology opened up the possibility of constructing power
stations on the moon. These power stations will be capable of
transmitting power to earth using microwave energy. Such
microwave energy would then be converted into electricity using
a vast array of Rectenna receivers on the earth.
Thanks…………