1. SOLAR POWER SATELLITE By
08030-EC-257
SUSMITHA

2. INTRODUCTION THE DEMAND OF THE ELECTRICAL POWER WHAT IS SPS?
WHY SPS IS USED?
GENERAL IDEA
WIRELESS POWER TRANSMISSION
MICROWAVE POWER TRANSMISSION
IN ENVIRONMENTAL ISSUES
ADVANTAGES & DISADVANTAGES

3. NEED OF SPS THE EARTH BASED SOLAR PANNEL WILL RECEIVE A PART OF SOLAR
THE DAY AND NIGHT ARE THE ANOTHER FACTORS EFFECTS
INCREASING GLOBAL ENERGY DEMAND IS CONTINUE FOR MANY DECADES

4. SPS-A GENERAL IDEA
Solar Power Satellites would be located in the geosynchronous orbit

5. SPS The difference between existing satellites and SPS
The microwaves would be beamed to the Earth’s surface,
This direct current can then be converted to 50 or 60 Hz alternating current

6. WIRELESS POWER TRANSMISSION
TRANSMISSION OF ELECTRICAL ENERGY BY WPT IS FAMILIAR

7. The 50 Hz ac power tapped from the grid lines is stepped down to a suitable voltage level for rectification into dc.
Inside the magnetron electrons are emitted from a central terminal called cathode.
A positively charged anode surrounding the cathode attracts the electrons

9. MICROWAVE POWER TRANSMISSION IN SPS
The microwave transmission system as envisioned by NASA and DOE would have had three aspect
3. The collection of the microwave energy and its conversion into electrical energy at the earth’s surface.

10. There are mainly three dc-to-RF power converters: magnetrons,
klystrons and solid state amplifiers.

12. BEAM CONTROL

13. RECTENNA
rectenna is the microwave to dc converting device and is mainly
composed of a receiving antenna and a rectifying circuit.

14. MICROWAVES-ENVIRONMENTAL ISSUES
SPS would appear as a very bright star in the relatively darknight sky
On the earth, each rectenna for a full-power SPS would be about 10km in diameter
However, the issues related to microwaves continue to be the mostpressing environmental issues.

15. ADVANTAGES AND DISADVANTAGES
The power could be directed to any point on the earth’s surface
No moving parts.
No fuel required
No waste product
The entire structure is massive.
Risks involves in manfunction
High cost

16. conclusion
Sps will be the central attraction of space and energy technology