Optimización de la compensación reactiva en un sistema de potencia utilizando algorítmos genéticos PDF Download
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Author: Sandra Estrada Arbeláez
Publisher:
ISBN:
Category :
Languages : es
Pages : 0
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Author: Sandra Estrada Arbeláez
Publisher:
ISBN:
Category :
Languages : es
Pages : 0
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Author: Carlos Augusto Alzate Montealegre
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Resumen: La operación de sistemas de transmisión desde la óptica de los niveles de tensión en las barras y pérdidas en el sistema de potencia, es un problema de optimización matemática de programación no lineal entera mixta con variables de decisión continuas como los niveles de tensión y discretas como la compensación reactiva (condensadores/reactores) y la posición de Tap's en transformadores. Esta tesis presenta un modelo que es resuelto con Algoritmos Genéticos (AG) el cual plantea propuestas para la ubicación y dimensión óptima de compensación reactiva y variación de Tap's, minimizando pérdidas y garantizando una operación de calidad para el sistema de transmisión. Se proponen tres casos de estudio para el Sistema de Transmisión Nacional (STN) Colombiano: En el primer caso, se evalúa el estado actual del sistema con variables tomadas en tiempo real para un periodo de un día. En el segundo se optimiza la compensación reactiva existente, minimizando pérdidas y mejorando los perfiles de tensión en los nodos del sistema y en el tercer caso se realiza un estudio para la Compensación Óptima de Reactivos (COR) del STN con la compensación existente, evaluando la necesidad de instalar nuevos equipos para obtener la optimalidad en cuanto a reducción de pérdidas, costos de inversión y mejorar los perfiles de tensión en las barras.
Author: Oscar Danilo Montoya Giraldo
Publisher: Universidad Tecnológica de Bolívar
ISBN: 9588862833
Category : Science
Languages : es
Pages : 197
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Book Description
La potencia reactiva es un concepto abstracto y difícil de definir, especialmente en sistemas con alto desbalance y presencia de armónicos, se trata de una potencia circulante entre el campo magnético y el campo eléctrico, sin ser realmente generada o consumida. Sin embargo, este intercambio energético produce corrientes circulantes que, a su vez, generan perdidas de potencia activa en las líneas de transmisión. Por ello, es importante buscar formas de compensar este fenómeno, especialmente en niveles de distribución. Este libro muestra un enfoque formal para abordar este problema empleado métodos de optimización matemática. Así mismo, se extiende el concepto de compensación a problemas de armónicos (filtros activos), compensación de la corriente por el neutro (desbalance) y compensación de energía mediante el uso de elementos almacenadores. La optimización matemática resulta en una herramienta versátil y práctica para abordar estos problemas, generando un marco formal que permite no solo para analizar sistemáticamente los fenómenos físicos, sino también implementar algoritmos de compensación sobre convertidores de potencia. Así pues, este libro puede ser usado no solo por aquellas personas interesadas en profundizar en aspectos teóricos, sino también por quienes deseen implementar esquemas de compensación en sistemas de distribución.
Author: Hasan Ayaz
Publisher: Springer
ISBN: 3030204731
Category : Technology & Engineering
Languages : en
Pages : 518
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Book Description
This book offers a broad perspective on the field of cognitive engineering and neuroergonomics, covering emerging practices and future trends toward the harmonious integration of human operators and computer systems. It presents novel theoretical findings on mental workload and stress, activity theory, human reliability, error and risk, and neuroergonomic measures alike, together with a wealth of cutting-edge applications. Further, the book describes key advances in our understanding of cognitive processes, including mechanisms of perception, memory, reasoning, and motor response, with a special emphasis on their role in interactions between humans and other elements of computer-based systems. Based on the AHFE 2019 affiliated conference on Neuroergonomics and Cognitive Engineering, held on July 24-28, 2019, in Washington D.C., USA, it provides readers with a comprehensive overview of the current challenges in cognitive computing and factors influencing human performance.
Author: Carson W. Taylor
Publisher: McGraw-Hill Companies
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 296
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Book Description
Provides solutions to everyday voltage stability problems increasingly faced by engineers in electric power plants. Table of Contents: General Aspects of Electric Power Systems; What is Voltage Stability; Transmission System Reactive Power Compensation and Control; Power System Loads; Generation Characteristics; Simulation of Equivalent Systems; Voltage Stability of a Large System; Voltage Stability with HVDC Links; Power System Planning and Operating Guidelines. Appendices: A. Notes on the Per Unit System; B. Voltage Stability and the Power Flow Problem; C. Power Flow Simulation Methodology; D. Dynamic Analysis Methods; E. Equivalent System 2 Data; F. Voltage Instability Incidents. Index. Illustrations.
Author: Seyedali Mirjalili
Publisher: Springer
ISBN: 3319930257
Category : Technology & Engineering
Languages : en
Pages : 164
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Book Description
This book introduces readers to the fundamentals of artificial neural networks, with a special emphasis on evolutionary algorithms. At first, the book offers a literature review of several well-regarded evolutionary algorithms, including particle swarm and ant colony optimization, genetic algorithms and biogeography-based optimization. It then proposes evolutionary version of several types of neural networks such as feed forward neural networks, radial basis function networks, as well as recurrent neural networks and multi-later perceptron. Most of the challenges that have to be addressed when training artificial neural networks using evolutionary algorithms are discussed in detail. The book also demonstrates the application of the proposed algorithms for several purposes such as classification, clustering, approximation, and prediction problems. It provides a tutorial on how to design, adapt, and evaluate artificial neural networks as well, and includes source codes for most of the proposed techniques as supplementary materials.
Author: John P. Cloherty
Publisher: Lippincott Williams & Wilkins
ISBN: 1451154003
Category : Medical
Languages : en
Pages : 1098
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Book Description
This edition of the Manual of Neonatal Care has been completely updated and extensively revised to reflect the changes in fetal, perinatal, and neonatal care that have occurred since the sixth edition. This portable text covers current and practical approaches to evaluation and management of conditions encountered in the fetus and the newborn, as practiced in high volume clinical services that include contemporary prenatal and postnatal care of infants with routine, as well as complex medical and surgical problems. Written by expert authors from the Harvard Program in Neonatology and other major neonatology programs across the United States, the manual’s outline format gives readers rapid access to large amounts of valuable information quickly. The Children’s Hospital Boston Neonatology Program at Harvard has grown to include 57 attending neonatologists and 18 fellows who care for more than 28,000 newborns delivered annually. The book also includes the popular appendices on topics such as common NICU medication guidelines, the effects of maternal drugs on the fetus, and the use of maternal medications during lactation. Plus, there are intubation/sedation guidelines and a guide to neonatal resuscitation on the inside covers that provide crucial information in a quick and easy format.
Author: Peter Hall
Publisher: Wiley-Blackwell
ISBN: 9780631199434
Category : Social Science
Languages : en
Pages : 502
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Book Description
Cities of Tomorrow is a critical history of planning in theory and practice in the twentieth century, as well as of the social and economic problems and opportunities that gave rise to it. Trenchant, perceptive, global in coverage, this book is an unrivalled account of its crucial subject. The third edition of Cities of Tomorrow is comprehensively revised to take account of abundant new literature published since its original appearance, and to view the 1990s in historical perspective. This is the definitive edition, reviewing the development of the modern planning movement over the entire span of the twentieth century.
Author: Bruce E. Logan
Publisher: John Wiley & Sons
ISBN: 1118230078
Category : Science
Languages : en
Pages : 493
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Book Description
A unique approach to the challenges of complex environmental systems Environmental Transport Processes, Second Edition provides much-needed guidance on mass transfer principles in environmental engineering. It focuses on working with uncontrolled conditions involving biological and physical systems, offering examples from diverse fields, including mass transport, kinetics, wastewater treatment, and unit processes. This new edition is fully revised and updated, incorporating modern approaches and practice problems at the end of chapters, making the Second Edition more concise, accessible, and easy to use. The book discusses the fundamentals of transport processes occurring in natural environments, with special emphasis on working at the biological physical interface. It considers transport and kinetics in terms of systems that involve microorganisms, along with in-depth coverage of particles, size spectra, and calculations for particles that can be considered either spheres or fractals. The book's treatment of particles as fractals is especially unique and the Second Edition includes a new section on exoelectrogenic biofilms. It also addresses dispersion in natural and engineered systems unlike any other book on the subject. Readers will learn to tackle with confidence complex environmental systems and make transport calculations in heterogeneous environments with mixtures of chemicals.
Author: Piet Lens
Publisher: IWA Publishing
ISBN: 1843391007
Category : Science
Languages : en
Pages : 545
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Book Description
Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
