Space based solar power generation using a distributed network of satellite
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Date
2015
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UMT.Lahore
Abstract
Space Based Solar Power generation proposed a new technique to fulfill the increasing energy demand .It has high efficiency as compared to the earth based solar power generation. In this technique we will established satellite constellation at the geo synchrouns earth orbit (GEO) .At this constellation solar panel assembly is attached which capture energy from the sun at GEO solar energy will not face any hindrance as in earth based solar power generation(EBSP) for instance in EBSP maximum energy will not reach to the earth due to atmospheric attenuation , weather condition .Moreover in SBSP it will not face any such type of hurdle and at GEO 30% maximum solar energy is present .When solar energy captured by the satellite constellation it will transmitted to the earth with the help of WPT technique . In this thesis mainly concentrate on the (i) Satellite constellation architecture (ii) Power Transmission technique through space (iii) Device which used to transmit this power .In previous SBSP approach power is transmitted through the Laser transmission technique .But in this thesis we are using Wireless Power Transmission (WPT) technique to send microwave power to the earth. Research on the best material for solar panel which has maximum conversion efficiency, Research on different alternatives of SPS (Solar Power Satellite), research on different type of transmission antenna has been done in this thesis.
When all the DC energy is converted to the microwave power this must be transmitted to the earth at “Rectenna” assembly and at Rectenna it is again converted to the Dc form .Rectenna assembly consist of rectifying circuit plus antenna plus filter .In this research we develop best rectifier circuit , and efficient low pass filter which improves the efficiency of Rectenna assembly .At the end all technical component of SBSP for instance sun synchrouns orbit ,satellite constellation , relative motion of satellite , space debris , device to convert DC to microwave power ,Transmission antenna , selection of ground track , and Rectenna component all these technical component are designed in MATLAB version (2013b) . And at the final results conclude in the table which shows that SBSP has more efficiency as compared to the EBSP.