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SOLAR POWER SATELLITE

SOLAR POWER SATELLITE. By 08030-EC-257 SUSMITHA. 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. NEED OF SPS.

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SOLAR POWER SATELLITE

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  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

  8. 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.

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

  10. BEAM CONTROL

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

  12. 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.

  13. 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

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

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