Distribution Automation Applications Of Fiber Optics
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Distribution Automation Applications Of Fiber Optics
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17
Distribution Automation Applications Of Fiber Optics written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.
Motivations for interest and research in distribution automation are discussed. The communication requirements of distribution automation are examined and shown to exceed the capabilities of power line carrier, radio, and telephone systems. A fiber optic based communication system is described that is co-located with the distribution system and that could satisfy the data rate and reliability requirements. A cost comparison shows that it could be constructed at a cost that is similar to that of a power line carrier system. The requirements for fiber optic sensors for distribution automation are discussed. The design of a data link suitable for optically-powered electronic sensing is presented. Empirical results are given. A modeling technique that was used to understand the reflections of guided light from a variety of surfaces is described. An optical position-indicator design is discussed. Systems aspects of distribution automation are discussed, in particular, the lack of interface, communications, and data standards. The economics of distribution automation are examined. Kirkham, Harold and Johnston, A. and Friend, H. Jet Propulsion Laboratory AUTOMATIC CONTROL; COST ANALYSIS; DISTRIBUTED PARAMETER SYSTEMS; ECONOMIC ANALYSIS; FIBER OPTICS; OPTICAL MEASURING INSTRUMENTS; POSITION INDICATORS; POWER LINES; RADIO COMMUNICATION; TELEPHONES; DATA LINKS; DESIGN ANALYSIS; RATES (PER TIME); RELIABILITY ANALYSIS...
Developments In Fiber Optics For Distribution Automation
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Author :
language : en
Publisher: DIANE Publishing
Release Date :
Developments In Fiber Optics For Distribution Automation written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Developments In Fiber Optics For Distribution Automation
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-06
Developments In Fiber Optics For Distribution Automation written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-06 with categories.
An optical fiber based communications system of unusual design is described. The system consists of a network of optical fibers overlaid on the distribution system. It is configured as a large number of interconnected rings, with some spurs. Protocols for access to and control of the network are described. Because of the way they function, the protocols are collectively called AbNET, in commemoration of the microbiologists' abbreviation Ab for antibody. Optical data links that could be optically powered are described. There are two versions, each of which has a good frequency response and minimal filtering requirements. In one, a conventional FM pulse train is used at the transmitter, and a novel form of phase-locked loop is used as demodulator. In the other, the FM transmitter is replaced with a pulse generator arranged so that the period between pulses represents the modulating signal. Transmitter and receiver designs, including temperature compensation methods, are presented. Experimental results are given. Kirkham, H. and Friend, H. and Jackson, S. and Johnston, A. Jet Propulsion Laboratory...
Design Considerations For A Fiber Optic Communications Network For Power Systems
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Author :
language : en
Publisher:
Release Date : 1993
Design Considerations For A Fiber Optic Communications Network For Power Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
The design of a fiber optic communication network for monitoring and control in power systems is discussed. It is shown that by appropriate choice of protocols, a fault-tolerant system can be built that operates in any arbitrary configuration. Since the network is based on fiber optics, it can be made fast enough for substation monitoring and control. In this application, a relatively small number of cables is required to implement a high reliability system. The network can also be used for distribution automation. In this application the network is required to reach all parts of the power system, and the fiber cable itself becomes a significant fraction of the cost of communications. However, since many applications can be supported at once, the cost per function can be reasonable.
Self Healing Control Technology For Distribution Networks
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Author : Xinxin Gu
language : en
Publisher: John Wiley & Sons
Release Date : 2017-02-07
Self Healing Control Technology For Distribution Networks written by Xinxin Gu and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-07 with Technology & Engineering categories.
Systematically introduces self-healing control theory for distribution networks, rigorously supported by simulations and applications • A comprehensive introduction to self-healing control for distribution networks • Details the construction of self-healing control systems with simulations and applications • Provides key principles for new generation protective relay and network protection • Demonstrates how to monitor and manage system performance • Highlights practical implementation of self-healing control technologies, backed by rigorous research data and simulations
Fiber Optic Sensors And Systems
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Author :
language : en
Publisher: Information Gatekeepers Inc
Release Date :
Fiber Optic Sensors And Systems written by and has been published by Information Gatekeepers Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Communications And Control For Electric Power Systems
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17
Communications And Control For Electric Power Systems written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.
The first section of the report describes the AbNET system, a hardware and software communications system designed for distribution automation (it can also find application in substation monitoring and control). The topology of the power system fixes the topology of the communications network, which can therefore be expected to include a larger number of branch points, tap points, and interconnections. These features make this communications network unlike any other. The network operating software has to solve the problem of communicating to all the nodes of a very complex network in as reliable a way as possible even if the network is damaged, and it has to do so with minimum transmission delays and at minimum cost. The design of the operating protocols is described within the framework of the seven-layer Open System Interconnection hierarchy of the International Standards Organization. Section 2 of the report describes the development and testing of a high voltage sensor based on an electro-optic polymer. The theory of operation is reviewed. Bulk fabrication of the polymer is discussed, as well as results of testing of the electro-optic coefficient of the material. Fabrication of a complete prototype sensor suitable for use in the range 1-20 kV is described. The electro-optic polymer is shown to be an important material for fiber optic sensing applications. Appendix A is theoretical support for this work. The third section of the report presents the application of an artificial neural network, Kohonen's self-organizing feature map, for the classification of power system states. This classifier maps vectors of an N-dimensional space to a 2-dimensional neural net in a nonlinear way preserving the topological order of the input vectors. These mappings are studied using a nonlinear power system model. Kirkham, H. and Goettsche, A. and Niebur, D. and Friend, H. and Johnston, A. Jet Propulsion Laboratory AUTOMATIC CONTROL; COMMUNICATION NETWORKS; ELECTRIC POWER SUPPLIES...
Fiber Optics Weekly Update
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Author :
language : en
Publisher: Information Gatekeepers Inc
Release Date :
Fiber Optics Weekly Update written by and has been published by Information Gatekeepers Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Ultra High Frequency Linear Fiber Optic Systems
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Author : Kam Lau
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-04-22
Ultra High Frequency Linear Fiber Optic Systems written by Kam Lau and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-22 with Science categories.
This book provides a concise but rigorous treatment of the theory behind analog and digital fiber-optics links and system issues. The book reduces the complex subject to simple core explanations and interpretations. It is designed for a one-semester course on fiber-optics systems and communication links. Attention is paid both to the digital links prevalent in traditional telecommunication networks and to the analog links important in cable modem distribution networks for Internet service distributions. This broad but concise text will thus be invaluable not only to students of fiber-optics communication but also to practicing engineers.
Control And Automation Of Electrical Power Distribution Systems
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Author : James Northcote-Green
language : en
Publisher: CRC Press
Release Date : 2017-12-19
Control And Automation Of Electrical Power Distribution Systems written by James Northcote-Green and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-19 with Technology & Engineering categories.
Implementing the automation of electric distribution networks, from simple remote control to the application of software-based decision tools, requires many considerations, such as assessing costs, selecting the control infrastructure type and automation level, deciding on the ambition level, and justifying the solution through a business case. Control and Automation of Electric Power Distribution Systems addresses all of these issues to aid you in resolving automation problems and improving the management of your distribution network. Bringing together automation concepts as they apply to utility distribution systems, this volume presents the theoretical and practical details of a control and automation solution for the entire distribution system of substations and feeders. The fundamentals of this solution include depth of control, boundaries of control responsibility, stages of automation, automation intensity levels, and automated device preparedness. To meet specific performance goals, the authors discuss distribution planning, performance calculations, and protection to facilitate the selection of the primary device, associated secondary control, and fault indicators. The book also provides two case studies that illustrate the business case for distribution automation (DA) and methods for calculating benefits, including the assessment of crew time savings. As utilities strive for better economies, DA, along with other tools described in this volume, help to achieve improved management of the distribution network. Using Control and Automation of Electric Power Distribution Systems, you can embark on the automation solution best suited for your needs.