wireless power transmission
TRANSCRIPT
Wireless power transmission
Presented by
S.P.Tejashwani
08AG1A0244
OVERVIEW OF THE PRESENTATION
• Abstract• What is wireless power transmission
system??• Types of WPT :
techniques to transfer energy wirelessly
• Advantages and disadvantages• applications• conclusion
ABSTRACT
•Transmitting power without using wires
•This method provides high efficiency, low transmission cost and avoids power theft
What is WPT ??
• The transmission of energy from one place to another without using wires
• Conventional energy transfer using wires
• Wireless transmission is made possible by using various techniques
Why not wires ??
• Energy loss during transmission
On average 30% In india it exceeds
40%• Power theft problems
Why wpt ??
Reliable Efficient Fast Low maintenance Can be used for short range or long range
TYPES AND TECHNOLOGIES OF WPT
TYPES AND TECHNOLOGIES OF WPT
•NEAR FIELD TECHNIQUES
Inductive coupling Resonant inductive coupling
• FAR FIELD TECHNIQUES Microwave power transmission laser power transmission
Inductive coupling
• primary and secondary not connected with wires•Energy transfer due to mutual induction•Transformer ,wireless charging pad, electric brushes are some of the examples
Resonance inductive coupling (ric)
• combination of inductive coupling and resonance•Coil provides the inductance•Energy will be shifting back and forth between magnetic field surrounding the coil and electric field around the capacitor
FAR FIELD ENERGY TRANSFER
Microwave power transfer
• Transfers power from one place to another.two places being in line of sight usually.•Steps 1.electrical energy to microwave energy 2.capturing microwaves using rectenna 3. microwave energy to electrical energy
LASER TRANSMISSION
• Laser is highly directional• Not dispersed for very long• Gets attenuated when propogates
through atmosphere• Simpler receiver• Cost efficient
APPLICATIONS
•Electric mobile charging•Consumer electronics•Industrial purposes•Solar power satellites•Transfers energy to remote area
CONCLUSION