This document summarizes a seminar on wireless power transmission via solar power satellites. It begins with an introduction to wireless power transmission (WPT) and its history. It then discusses space-based power transmission using solar power satellites (SPS) as an alternative to ground-based power transmission. The document outlines how an SPS system would work, including solar panels to collect solar energy, a spacetenna to transmit the energy via microwaves, and rectennas on Earth to convert the microwaves back to electricity. It discusses the advantages of SPS in providing unlimited clean energy but also notes the challenges of energy storage and the technical difficulties and costs associated with constructing large satellites and transmission systems in space.
A presentation on upcoming Solar Power Technologies as a viable means of efficiently harnessing solar energy. Part of Self Study Phase-I at RV College of Engineering, Bangalore.
Part 2 is here: http://www.slideshare.net/Jayanth-R/solar-power-satellites-part-2
A presentation on upcoming Solar Power Technologies as a viable means of efficiently harnessing solar energy. Part of Self Study Phase-I at RV College of Engineering, Bangalore.
Part 2 is here: http://www.slideshare.net/Jayanth-R/solar-power-satellites-part-2
Wireless power transmission from solar power satelliteSaquib Maqsood
In the near future due to extensive use of energy, limited supply of resources and the pollution in environment from present resources e.g. (wood, coal, fossil fuel) etc, alternative sources of energy and new ways to generate energy which are efficient, cost effective and produce minimum losses are of great concern. Wireless electricity (Power) transmission (WET) has become a focal point as research point of view and nowadays lies at top 10 future hot burning technologies that are under research these days. This paper presents the concept of transmitting power wirelessly to reduce transmission and distribution losses. The wired distribution losses are 70 - 75% efficient. We cannot imagine the world without electric power which is efficient, cost effective and produce minimum losses is of great concern.This paper tells us the benefits of using WET technology specially by using Solar based Power satellites (SBPS) and also focuses that how we make electric system cost effective, optimized and well organized. Solar Power Satellite (SPS) is an energy system which collects solar energy in space and transmits it to the ground. It has been believed as a promising infrastructure to resolve global environmental and energy problems for human beings. Microwave power transmission has been investigated and demonstrated for more than 40 years, but still requires further research regarding high-efficiency power conversion and high-accuracy beam control for SPS application. Moreover, attempts are made to highlight future issues so as to index some emerging solutions.
In this paper, I present the concept of Solar Power Satellites -The solar cells in the satellite will convert sunlight to electricity, which will changed to radio frequency energy, then beamed to a receiver site on earth and reconverted to electricity by using transmitting and receiving antenna with the technology of wireless power transmission (i.e., transmitting power as microwaves in order to reduce the transmission and distribution losses). This concept is also known as Microwave Power Transmission.
A great concern has been voiced in recent years over the extensive use of energy, the limited supply of resources, and the pollution of the environment from the use of present energy conversion systems. Electrical power accounts for much of the
energy consumed. Much of this power is wasted during transmission from power plant generators to the consumer. The
resistance of the wire used in the electrical grid distribution system causes a loss of 26-30% of the energy generated. This loss implies that our present system of electrical distribution is only 70-74% efficient.
Nikola Tesla is best known for his remarkable statements regarding the wireless transmission of electrical power. His first efforts towards this end started in 1891 and were intended to simply "disturb the electrical equilibrium in the nearby portions of the earth... to bring into operation in any way some instrument." In other words the object of his experiments was simply to produce effects locally and detect them at a distance.
Wireless power transmission from solar power satelliteSaquib Maqsood
In the near future due to extensive use of energy, limited supply of resources and the pollution in environment from present resources e.g. (wood, coal, fossil fuel) etc, alternative sources of energy and new ways to generate energy which are efficient, cost effective and produce minimum losses are of great concern. Wireless electricity (Power) transmission (WET) has become a focal point as research point of view and nowadays lies at top 10 future hot burning technologies that are under research these days. This paper presents the concept of transmitting power wirelessly to reduce transmission and distribution losses. The wired distribution losses are 70 - 75% efficient. We cannot imagine the world without electric power which is efficient, cost effective and produce minimum losses is of great concern.This paper tells us the benefits of using WET technology specially by using Solar based Power satellites (SBPS) and also focuses that how we make electric system cost effective, optimized and well organized. Solar Power Satellite (SPS) is an energy system which collects solar energy in space and transmits it to the ground. It has been believed as a promising infrastructure to resolve global environmental and energy problems for human beings. Microwave power transmission has been investigated and demonstrated for more than 40 years, but still requires further research regarding high-efficiency power conversion and high-accuracy beam control for SPS application. Moreover, attempts are made to highlight future issues so as to index some emerging solutions.
In this paper, I present the concept of Solar Power Satellites -The solar cells in the satellite will convert sunlight to electricity, which will changed to radio frequency energy, then beamed to a receiver site on earth and reconverted to electricity by using transmitting and receiving antenna with the technology of wireless power transmission (i.e., transmitting power as microwaves in order to reduce the transmission and distribution losses). This concept is also known as Microwave Power Transmission.
A great concern has been voiced in recent years over the extensive use of energy, the limited supply of resources, and the pollution of the environment from the use of present energy conversion systems. Electrical power accounts for much of the
energy consumed. Much of this power is wasted during transmission from power plant generators to the consumer. The
resistance of the wire used in the electrical grid distribution system causes a loss of 26-30% of the energy generated. This loss implies that our present system of electrical distribution is only 70-74% efficient.
Nikola Tesla is best known for his remarkable statements regarding the wireless transmission of electrical power. His first efforts towards this end started in 1891 and were intended to simply "disturb the electrical equilibrium in the nearby portions of the earth... to bring into operation in any way some instrument." In other words the object of his experiments was simply to produce effects locally and detect them at a distance.
Space-based solar power (SBSP) is the concept of collecting solar power in space (using an "SPS", that is, a "solar-power satellite" or a "satellite power system") for use on Earth.It has been in research since the early 1970s. SBSP would differ from current solar collection methods in that the means used to collect energy would reside on an orbiting satellite instead of on Earth's surface.
Wireless Electrical Transmission as the name shows is the Transmission of Electrical Energy without wires to any place on Earth. Even to the most remote areas.
Wireless power transmission via Space Based Solar Powernikhil gaurav
this presentation tells about how the power is transmitting wireless and how it helps to decrease the losses in power transmission and thus increases efficiency and more important is uses a renewable source of energy(SUN).
Wireless communications is a type of data communication that is performed and delivered wirelessly.This is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.This Presentation is about ' WIRELESS POWER TRANSMISSION ' which is the most important & interesting topic in electrical & electronics branch.
This presentation is about the brief introduction about the wireless power transfer. It is capable to grow the knowledge for the futuristic technologies.
WIRELESS POWER TRANSMISSION VIA SOLAR POWER SATELLITE
Wireless power transmission via solar power satellite 1(1)
1. SEMINAR ON
WIRELESS POWER TRANSMISSION Via
SOLAR POWER SATELLITE
SUBMITTED TO: SUBMITTED BY:
RAJNISH MITTER AKASH YADAV
ASSISTANT PROFESSOR ELECTRICAL ENGINEERING
ELECTRICAL DEPARTMENT 10ELDEE702
2. CONTENTS
• Brief study of WPT
• Introduction to SPS
• How SPS works
• Flow chart of solar power transmission
• Overview of system design
• Advantages & Disadvantages
• Conclusion
• References
3. WHAT IS WPT ???
• The transmission of energy from one place to another without
using wires.
• Conventional energy transfer is using wires.
• But the wireless transmission is made possible by using
various technologies.
• This Phenomena is also known as „Witricity‟.
4. HISTORY OF WPT
• Nikola Tesla in late 1890‟s gave the concept of Witricity.
• 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 is taken into research after 100 years by a
team led by Marin Soljacic from MIT.
5. WHY NOT WIRES???
• As per the studies , most electrical energy transfer is through
wires.
• Most of the energy loss is during transmission.
• On an average , more than 30%.
• In India, it exceeds 40%.
6. WHY WPT???
• Reliable
• Efficient
• Fast
• Low maintenance cost
• Can be used for short range as well as long range
7. IS WPT SAFE???
• Human beings or other objects placed between the transmitter
and receiver do not hinder the transmission of power.
• Magnetic field tend to interact very weakly with the biological
tissues of the body, and so are not prone to cause any damage
to any living being.
8. WPT BASICS
There are mainly 3 types of wireless energy transfer
1.Short Range –Inductive Coupling
2.Medium range-Resonant Induction
3.Long Range Power Transfer-Electromagnetic wave
9. TYPES OF WPT
• Ground based power transmission
• Space based power transmission
10. • Space based power transmission is preferred over
ground based power transmission because :-
1.Energy is available 24 hours a day.
2.No storage required for nighttime power.
3.The energy available in space is 4 -5 times than on earth.
4.No long winter nights, no storms, no cloudy seasons.
11. INTRODUCTION TO SPS
• The SPS is a gigantic satellite designed as an electric power
plant orbiting the geostationary earth orbit.
• It consists of mainly three segments solar energy collector to
convert the solar energy into DC electricity, DC to microwave
converter and larger antenna array to beam down the
microwave power to the ground.
12. WHY SPS???
• Increasing global energy demand.
• Environmental problems due to fossil fuels.
• To overcome energy crisis.
• Overcome day and night effect and other factors such as cloud.
15. OVERVIEW OF SYSTEM DESIGN
• Solar Panel
• Spacetenna (antenna on satellite)
• Rectenna (rectifying antenna)
16. SOLAR PANEL
• Set of solar photovoltaic modules electrically connected and
mounted on a supporting structure.
• Photovoltaic module is a packaged , connected assembly of
solar cells.
• Solar panels use photons(light energy) from sun to generate
electricity through photovoltaic effect.
• Solar panels were first used in space in 1958.
17.
18. SPACETENNA(ANTENNA ON SATELLITE)
• Spacetenna is a triangular prism with a length of 800 m and
sides of 100 m.
• The faces of prism are embedded with photovoltaic cells
.These cells would convert solar energy into electricity, which
in turn power onboard , Microwave Generator.
• The microwave thus produced travels through atmosphere &
collected by RECTENNAS on earth.
19. RECTENNA(RECTIFYING ANTENNA)
• An antenna comprising a mesh of dipoles and diodes for
absorbing microwave energy from a transmitter and converting
it into electric power.
• Microwaves are received with about 85% efficiency.
• 95% beam will fall on the Rectenna.
21. ADVANTAGES
• The realization of the SPS concept holds great promises for
solving energy crisis.
• No fuel required.
• Unlimited energy resource.
• Zero Carbon-dioxide emission.
• Solar energy can be more efficiently collected in space.
• Elimination of plant and wildlife interference.
22. DISADVANTAGES
• The main drawback of solar power energy transfer from orbit
is the storage of electricity during off peak demand hours.
• Interference with communication satellites.
• The entire structure is massive.
• High cost and require much time for construction.
• Risks involved with malfunction.
23. CONCLUSION
• More reliable than ground based solar power.
• In order for SPS to become a reality several things have to
happen:
1.Government Support
2.Cheaper launch prices
3.Involement of private sectors
24. REFERENCES
• Ralph H. Nansen solar power industries “WIRELESS POWER
TRANSMISSION :The key to solar power satellites” IEEE AES
system magazine , January 1996.
• Brown, W. C., “Beamed microwave power transmission and its
application to space”, IEEE Trans. Microwave Theory Tech.,vol.40.
• Kaya, N., S. Ida, Y. Fujino, and M. Fujita, “Transmitting antenna
system for airship demonstration of Space Energy and
Transportation” IEEE Vol.1.
• Hatsuda, T., K. Ueno, M. Inoue, “Solar power satellite interference
assessment”, IEEE, Vol. 3, No. 4, Dec. 2002
• Transmission Technology”, IEEE Microwave Magazine, December
2002.