Solar Power for Telecommunications PDF Download

Author: Michael Mack
Publisher:
ISBN: 9780642910561
Category : Solar batteries
Languages : en
Pages : 25

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Author:
Publisher: DIANE Publishing
ISBN: 1428924574
Category :
Languages : en
Pages : 297

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Book Description
During energy crisis at the end of the Sixties, a new idea to exploit solar energy arose: Solar Power Satellites. These satellites need a huge surface to collect enough solar energy to be beamed on Earth by means of a microwave power transfer system. Different concepts appeared during last forty years and a lot of studies addressing the SPS economical feasibility have been published. In this work a particular concept is considered, the JAXA Reference Concept 2003. It is a formation flying SPS, composed by two reflectors and a central array panel. The objective of the work is to study two major problems this concept presents. Due to its dimensions, the satellite orbit will suffer from important orbital perturbations and since formation flying satellites need a tight orbit control, the first task is to derive an analytical approximation to perform relative perturbed orbit propagation for formation flying satellite. This objective is pursued starting from a H. Schaub’s formulation in which formation flying satellites unperturbed orbit is described by means of an approximated relation function of orbital element differences. This formulation is merged with another approach, developed in a previous work, which gives, analytically, orbital parameters variation when a perturbation acts on the spacecraft. The result is a very interesting algorithm, able to perform the assigned task with a relative error lower than 3% over one simulated orbit. The second objective concerns structural control. It is not possible to consider these huge satellites as rigid bodies, first natural frequencies will be certainly excited during operations. So that, the second task is the study of actuator placement optimization for flexible satellites, very useful for tight pointing requirements. A FEM model is developed modeling the SPS as a frame of beams and a global controllability index is obtained combining modal controllability and component cost analysis. The maximization of this parameter,

Author:
Publisher:
ISBN:
Category : Solar energy
Languages : en
Pages : 768

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Author: Adel A. Elbaset
Publisher: Springer Nature
ISBN: 3030663442
Category : Technology & Engineering
Languages : en
Pages : 196

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This book looks at the challenge of providing reliable and cost-effective power solutions to expanding communications networks in remote and rural areas where grid electricity is limited or not available. It examines the use of renewable energy systems to provide off-grid remote electrification from a variety of resources, including regenerative fuel cells, ultracapacitors, wind energy, and photovoltaic power systems, and proposes a powerful hybrid system that can replace the need and high operation costs of batteries and diesel powered electric generators. Analyzes types of communications stations and their rate of consumption of electrical power; Presents brief descriptions of various types of renewable energy; Investigates renewable energy systems as a source for powering communication stations.

Author: Don M. Flournoy
Publisher: Springer Science & Business Media
ISBN: 1461420008
Category : Technology & Engineering
Languages : en
Pages : 118

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Book Description
Communication satellites are a $144 billion industry. Is there any space-based industry that could possibly beat that market? 'Solar Power Satellites' shows why and how the space satellite industry will soon begin expanding its market from relaying signals to Earth to generating energy in space and delivering it to the ground as electricity. In all industrialized nations, energy demand is growing exponentially. In the developing world, the need for energy is as basic as food and water. The Sun's energy is available everywhere, and it is non-polluting. As business plans demonstrate its technical feasibility, commercial potential, and environmental acceptability, every country on Earth will look to space for the power it needs.

Author:
Publisher:
ISBN:
Category : Electric power production
Languages : en
Pages :

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A large collection of articles from the period 1970 to 1991, most from the 1970s. Articles from the 1970s are on research and development of solar energy, introduction of solar water heaters, research into converting solar energy into electricity, and erection of solar powered modules for telecommunications in Central Australia by Telecom. Later articles include the failure of the White Cliffs solar power station and the World Solar Challenge (solar powered car race from Darwin to Adelaide).

Author:
Publisher: Jeffrey Frank Jones
ISBN:
Category :
Languages : en
Pages : 148

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Book Description
Introduction To SPACES SPACES is a portable, lightweight battery charger and DC power distribution system designed to operate using various sources of DC input power including renewable solar energy. - Using INPUT cables selected by the user, SPACES accepts INPUT DC power in several ways including solar power input, vehicle DC power input, or batteries. - Using optional OUTPUT cables selected by the user, SPACES can function as a battery charger or can directly power 12/24 volt battery operated weapon system. - SPACES is capable of energizing many different types of systems including the AN/PRC-117, AN/PRC-150, AN/PRC-152 radios, Tough Book computers, low wattage AC powered devices and charge BB-2590/U and other batteries. SPACES can also be used as a Power Distribution device enabling the user to transfer energy between different battery types (see page 49). Introduction To Guide to Employing Renewable Energy and Energy Efficient Technologies 1. PURPOSE: This X-File gathers, organizes and synthesizes knowledge gleaned by the Marine Corps Warfighting Laboratory utilizing lessons learned from the Experimental Forward Operating Base (ExFOB) process, and from limited experimentation, pre-deployment training and post deployment reports. It is in a format that can be quickly read and easily transported—in the cargo pocket of the utility uniform—so easy-to-use information is immediately available to all levels of command. 2. SCOPE. This X-File consolidates knowledge on technologies that were evaluated during the ExFOB process in close cooperation with the Commandant’s Expeditionary Energy Office (E2O). These technologies have proven to reduce the logistic footprint of Marines operating from austere operating locations in Afghanistan. a. All of the systems described in here can be found in open access sources. b. We have outlined the capabilities of the technology and clarified how it could be employed. c. We do not replace any Government-issued Technical Manuals nor is this knowledge intended to replace any existing tactical warfighting fundamentals. d. Our goal is to optimize potential use of the technologies in conjunction with established Marine Corps doctrine, orders, and higher level policy guidance. 3. HANDLING INSTRUCTIONS. This X-File is approved for public release; distribution unlimited.

Author: Garret Moddel
Publisher: Springer Science & Business Media
ISBN: 1461437164
Category : Technology & Engineering
Languages : en
Pages : 396

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Book Description
Rectenna Solar Cells discusses antenna-coupled diode solar cells, an emerging technology that has the potential to provide ultra-high efficiency, low-cost solar energy conversion. This book will provide an overview of solar rectennas, and provide thorough descriptions of the two main components: the diode, and the optical antenna. The editors discuss the science, design, modeling, and manufacturing of the antennas coupled with the diodes. The book will provide concepts to understanding the challenges, fabrication technologies, and materials required to develop rectenna structures. Written by experts in their specialized fields.

Author: Fritz E. Froehlich
Publisher: CRC Press
ISBN: 9780824729127
Category : Technology & Engineering
Languages : en
Pages : 502

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"Nyquist, Harry to Pupin, Michael Idvorsky"

Author: Hans Gumhalter
Publisher: Springer Science & Business Media
ISBN: 3642784038
Category : Technology & Engineering
Languages : en
Pages : 410

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Book Description
An important part of any communication system is its power supply system. The smooth operation of all communications depends on the quality of the power supply and on the operational reliability of the increasingly complex equipment and devices used for this purpose. This book describes current power supply technologies, it explains the circuit techniques using easy-to-understand examples and illustrations. Also covered are automatic control, grounding and protection techniques as well as the design of battery and grounding installations. The book is conceived as a practical guide for those involved in planning installing, comissioning and servicing telecommunication systems, but it is also useful as an introduction to the subject.