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WIRELESS POWER
TRANSMISSION
OBJECTIVES:-
 What is Wireless power
Transmission?
 History of WPT.
 Types of WPT.
 Advantages.
 Disadvantages.
WHAT IS WPT ?
 Wireless power or wireless energy
transmission is the transmission of electrical
energy from a Power source to an electrical load
without man-made conductors.
(OR)
 Simply the transmission of energy from one place
to another without using wires.
HISTORY
 In late 1980s Nikola Tesla worked on Induction
techniques.
 He was able to transfer energy from one coil to
another coil.
 He managed to light 200 lamps from a distance of
40 km.
 The idea of Tesla was taken into research after
100 years by the project named “ WITRICITY”.
TYPES OF WPT
 WPT can be used in 2 ways.
 For nearer purpose:
o Inductive coupling .
o Resonant Inductive coupling.
o Air ionization.
 For farther purpose:
o Microwave power transmission.
o Laser power transmission.
INDUCTIVE COUPLING
 Primary and secondary coils are not connected
with wires.
 Energy is transferred due to mutual induction.
 Examples are wireless charging pad, transformer
etc.
AIR IONIZATION
 Air ionizes at high field.
 Needed field is 2.11MV/m.
 Natural example is lightening.
 Not feasible for practical implementation.
Microwave Power Transmission
 Transfers high power from one place to another.
 Steps:
o Electrical energy to microwave energy.
o Capturing microwaves using antenna.
o Microwave to electrical energy.
ADVANTAGES
 Elimination of high power transmission
lines.
 Reduction in cost because of not using
expensive wires.
 It increases the portability of electrical
devices as it removes wires.
 Reduction in power losses.
DISADVANTAGES
 Interference with existing
communication systems.
 To much expensive for bigger scale
implementation.
 Microwaves hazardous to human life.

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Wireless_Power_Transmission.pptx

  • 2. OBJECTIVES:-  What is Wireless power Transmission?  History of WPT.  Types of WPT.  Advantages.  Disadvantages.
  • 3. WHAT IS WPT ?  Wireless power or wireless energy transmission is the transmission of electrical energy from a Power source to an electrical load without man-made conductors. (OR)  Simply the transmission of energy from one place to another without using wires.
  • 4. HISTORY  In late 1980s Nikola Tesla worked on Induction techniques.  He was able to transfer energy from one coil to another coil.  He managed to light 200 lamps from a distance of 40 km.  The idea of Tesla was taken into research after 100 years by the project named “ WITRICITY”.
  • 5. TYPES OF WPT  WPT can be used in 2 ways.  For nearer purpose: o Inductive coupling . o Resonant Inductive coupling. o Air ionization.  For farther purpose: o Microwave power transmission. o Laser power transmission.
  • 6. INDUCTIVE COUPLING  Primary and secondary coils are not connected with wires.  Energy is transferred due to mutual induction.  Examples are wireless charging pad, transformer etc.
  • 7. AIR IONIZATION  Air ionizes at high field.  Needed field is 2.11MV/m.  Natural example is lightening.  Not feasible for practical implementation.
  • 8. Microwave Power Transmission  Transfers high power from one place to another.  Steps: o Electrical energy to microwave energy. o Capturing microwaves using antenna. o Microwave to electrical energy.
  • 9. ADVANTAGES  Elimination of high power transmission lines.  Reduction in cost because of not using expensive wires.  It increases the portability of electrical devices as it removes wires.  Reduction in power losses.
  • 10. DISADVANTAGES  Interference with existing communication systems.  To much expensive for bigger scale implementation.  Microwaves hazardous to human life.