SOLAR POWER SATELLITE By 08030-EC-257 SUSMITHA.

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Presentation transcript:

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 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

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

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

WIRELESS POWER TRANSMISSION TRANSMISSION OF ELECTRICAL ENERGY BY WPT IS FAMILIAR

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

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.

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

BEAM CONTROL

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

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.

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

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