Topic
Electric power
About: Electric power is a research topic. Over the lifetime, 73036 publications have been published within this topic receiving 636991 citations.
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Patent•
04 Feb 1997TL;DR: In this paper, an aircraft mounted gas turbine engine system consisting of three shaft propulsive gas turbine engines having three electrical generators is described. And two of the generators are additionally configured to function as electric motors so as to facilitate power transfer between the engine shafts.
Abstract: An aircraft mounted gas turbine engine system comprises a three shaft propulsive gas turbine engine having three electrical generators; each one respectively associated with one shaft of the engine. Two of the electrical generators are additionally configured so as to function as electric motors so as to facilitate power transfer between the engine shafts. One of the electric generators provides the primary source of electrical power for the aircraft, while the remaining electrical generators provide electrical power for the engine and back-up power for the aircraft.
120 citations
TL;DR: In this article, the authors study the feature of electricity returns by means of Hurst R=S analysis and show that the mechanism underlying the process of price returns is a strong mean-reverting mechanism.
Abstract: The price of electricity is extremely volatile, because electric power cannot be economically stored, end user demand is largely weather dependent, and the reliability of the grid is paramount. However, underlying the process of price returns is a strong mean-reverting mechanism. We study this feature of electricity returns by means of Hurst R=S analysis. c 2000 Elsevier Science B.V. All rights reserved.
120 citations
TL;DR: In this article, a greenhouse-integrated power system consisting of solar photovoltaic panels, electrolyzer bank and Polymer Electrolyte Membrane (PEM) fuel cell stacks is presented.
120 citations
TL;DR: In this article, the thermodynamic potential of the integration of the Solid Oxide Fuel Cell technology with microturbine systems, in order to obtain ultra-high efficiency small capacity plants, generating electric power in the range of 250 kW with 65% LHV net electrical efficiency and with the possibility of cogenerating heat, is investigated.
Abstract: During the last years, two new subjects among the others have risen interest in the field of small scale electric power generation: advanced microturbines and Solid Oxide Fuel Cells.This paper investigates the thermodynamic potential of the integration of the Solid Oxide Fuel Cell technology with microturbine systems, in order to obtain ultra-high efficiency small capacity plants, generating electric power in the range of 250 kW with 65% LHV net electrical efficiency and with the possibility of cogenerating heat. A detailed description of the calculation model is presented, capable of full and part-load performances analysis of the microturbine and of the integrated SOFC+microturbine system.Copyright © 1999 by ASME
120 citations
Patent•
12 Nov 2010
TL;DR: In this paper, optical fiber-based distributed communications systems that provide and support both radio frequency (RF) communication services and digital data services are disclosed. But the authors focus on the optical fiber and electrical power lines, where the digital data service signals are converted to electrical power signals that may be carried over the electrical power line.
Abstract: Optical fiber-based distributed communications systems that provide and support both radio frequency (RF) communication services and digital data services are disclosed herein. The RF communication services and digital data services can be distributed over optical fiber and electrical power lines to client devices, such as remote antenna units for example. The digital data services can be distributed by using an electrical power line, where the electrical power line also provides power to remote antenna units and to digital data service components. The electrical digital data service signals that provide the digital data services are converted to electrical power signals that may be carried over the electrical power line.
120 citations