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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
RESUMEN Las centrales hidroeléctricas, como sistemas reales, tienen un comportamiento no lineal. Con el objetivo de diseñar controladores para turbinas, fue una práctica normal en el pasado considerar o simplificar estos comportamientos no lineales linealizando en un punto de operación las ecuaciones diferenciales que representan la dinámica de la central hidroeléctrica. La principal motivación de esta tesis nace como consecuencia y la necesidad de mejorar y optimizar las respuestas dinámicas de las plantas hidroeléctricas, considerando estos comportamientos no lineales, conduciendo a modelos dinámicos más realistas del sistema de la turbina hidráulica, además, desarrollar y diseñar controladores más eficientes. Esta tesis considera en general el caso de sistemas de operación aislados, este es el caso de una central hidroeléctrica alimentando una carga aislada. En esta tesis se cubren dos objetivos principales: 1) Profundizar el Conocimiento de los Modelos de Sistemas Hidroeléctricos, 2) Diseñar Controladores a Partir de Modelos Probados. Profundizar el Conocimiento de los Modelos de Sistemas Hidroeléctricos Este objetivo consiste en desarrollar un análisis comparativo de diferentes modelos de centrales hidroeléctricas aplicados al control de la velocidad de giro de la turbina, y proponer nuevos modelos. Con este propósito se utilizan parámetros tomados de diferentes centrales hidroeléctricas referenciadas en la bibliografía. Además, se propone la identificación de la central hidroeléctrica de Susqueda (Río Ter, Girona) usando estos modelos previamente refinados. Un paso previo muy importante para el diseño de un controlador es obtener un modelo dinámico de un sistema hidráulico confiable. Diseñar Controladores a Partir de Modelos Probados El segundo objetivo es el desarrollo y diseño de controladores de la frecuencia (velocidad de giro) para centrales hidroeléctricas usando técnicas de control no lineal basadas en técnicas de la geometría diferencial y de la funció
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
RESUMEN Las centrales hidroeléctricas, como sistemas reales, tienen un comportamiento no lineal. Con el objetivo de diseñar controladores para turbinas, fue una práctica normal en el pasado considerar o simplificar estos comportamientos no lineales linealizando en un punto de operación las ecuaciones diferenciales que representan la dinámica de la central hidroeléctrica. La principal motivación de esta tesis nace como consecuencia y la necesidad de mejorar y optimizar las respuestas dinámicas de las plantas hidroeléctricas, considerando estos comportamientos no lineales, conduciendo a modelos dinámicos más realistas del sistema de la turbina hidráulica, además, desarrollar y diseñar controladores más eficientes. Esta tesis considera en general el caso de sistemas de operación aislados, este es el caso de una central hidroeléctrica alimentando una carga aislada. En esta tesis se cubren dos objetivos principales: 1) Profundizar el Conocimiento de los Modelos de Sistemas Hidroeléctricos, 2) Diseñar Controladores a Partir de Modelos Probados. Profundizar el Conocimiento de los Modelos de Sistemas Hidroeléctricos Este objetivo consiste en desarrollar un análisis comparativo de diferentes modelos de centrales hidroeléctricas aplicados al control de la velocidad de giro de la turbina, y proponer nuevos modelos. Con este propósito se utilizan parámetros tomados de diferentes centrales hidroeléctricas referenciadas en la bibliografía. Además, se propone la identificación de la central hidroeléctrica de Susqueda (Río Ter, Girona) usando estos modelos previamente refinados. Un paso previo muy importante para el diseño de un controlador es obtener un modelo dinámico de un sistema hidráulico confiable. Diseñar Controladores a Partir de Modelos Probados El segundo objetivo es el desarrollo y diseño de controladores de la frecuencia (velocidad de giro) para centrales hidroeléctricas usando técnicas de control no lineal basadas en técnicas de la geometría diferencial y de la funció
Author: German Ardul Munoz-Hernandez Publisher: Springer Science & Business Media ISBN: 1447122917 Category : Technology & Engineering Languages : en Pages : 301
Book Description
Hydroelectric power stations are a major source of electricity around the world; understanding their dynamics is crucial to achieving good performance. The electrical power generated is normally controlled by individual feedback loops on each unit. The reference input to the power loop is the grid frequency deviation from its set point, thus structuring an external frequency control loop. The book discusses practical and well-documented cases of modelling and controlling hydropower stations, focused on a pumped storage scheme based in Dinorwig, North Wales. These accounts are valuable to specialist control engineers who are working in this industry. In addition, the theoretical treatment of modern and classic controllers will be useful for graduate and final year undergraduate engineering students. This book reviews SISO and MIMO models, which cover the linear and nonlinear characteristics of pumped storage hydroelectric power stations. The most important dynamic features are discussed. The verification of these models by hardware in the loop simulation is described. To show how the performance of a pumped storage hydroelectric power station can be improved, classical and modern controllers are applied to simulated models of Dinorwig power plant, that include PID, Fuzzy approximation, Feed-Forward and Model Based Predictive Control with linear and hybrid prediction models.
Author: P. Wang Publisher: Elsevier ISBN: 1483298221 Category : Technology & Engineering Languages : en Pages : 463
Book Description
The control of power systems and power plants is a subject of worldwide interest which continues to sustain a high level of research, development and application in many diverse yet complementary areas. Papers pertaining to 13 areas directly related to power systems and representing state-of-the-art methods are included in this volume. The topics covered include linear and nonlinear optimization, static and dynamic state estimation, security analysis, generation control, excitation and voltage control, power plant modelling and control, stability analysis, emergency and restorative controls, large-scale sparse matrix techniques, data communication, microcomputer systems, power system stabilizers, load forecasting, optimum generation scheduling and power system control centers. The compilation of this information in one volume makes it essential reading for a comprehension of the current knowledge in the field of power control.
Author: Qiang Lu Publisher: Springer Science & Business Media ISBN: 1475733127 Category : Mathematics Languages : en Pages : 398
Book Description
Nonlinear Control Systems and Power System Dynamics presents a comprehensive description of nonlinear control of electric power systems using nonlinear control theory, which is developed by the differential geometric approach and nonlinear robust control method. This book explains in detail the concepts, theorems and algorithms in nonlinear control theory, illustrated by step-by-step examples. In addition, all the mathematical formulation involved in deriving the nonlinear control laws of power systems are sufficiently presented. Considerations and cautions involved in applying nonlinear control theory to practical engineering control designs are discussed and special attention is given to the implementation of nonlinear control laws using microprocessors. Nonlinear Control Systems and Power System Dynamics serves as a text for advanced level courses and is an excellent reference for engineers and researchers who are interested in the application of modern nonlinear control theory to practical engineering control designs.
Author: Nand Kishor Publisher: IET ISBN: 178561195X Category : Business & Economics Languages : en Pages : 280
Book Description
This book presents a systematic approach to mathematical modeling of different configurations of hydropower plants over four sections - modeling and simulation approaches; control of hydropower plants; operation and scheduling of hydropower plants, including pumped storage; and special features of small hydropower plants.
Author: Amir Ebrahimi Publisher: BoD – Books on Demand ISBN: 183880532X Category : Technology & Engineering Languages : en Pages : 201
Book Description
Rapid deployment of wind and solar energy generation is going to result in a series of new problems with regards to the reliability of our electrical grid in terms of outages, cost, and life-time, forcing us to promptly deal with the challenging restructuring of our energy systems. Increased penetration of fluctuating renewable energy resources is a challenge for the electrical grid. Proposing solutions to deal with this problem also impacts the functionality of large generators. The power electronic generator interactions, multi-domain modelling, and reliable monitoring systems are examples of new challenges in this field. This book presents some new modelling methods and technologies for renewable energy generators including wind, ocean, and hydropower systems.
Author: Publisher: John Wiley & Sons ISBN: 1118755480 Category : Science Languages : en Pages : 1991
Book Description
Comprehensive, cross-disciplinary coverage of Smart Grid issues from global expert researchers and practitioners. This definitive reference meets the need for a large scale, high quality work reference in Smart Grid engineering which is pivotal in the development of a low-carbon energy infrastructure. Including a total of 83 articles across 3 volumes The Smart Grid Handbook is organized in to 6 sections: Vision and Drivers, Transmission, Distribution, Smart Meters and Customers, Information and Communications Technology, and Socio-Economic Issues. Key features: Written by a team representing smart grid R&D, technology deployment, standards, industry practice, and socio-economic aspects. Vision and Drivers covers the vision, definitions, evolution, and global development of the smart grid as well as new technologies and standards. The Transmission section discusses industry practice, operational experience, standards, cyber security, and grid codes. The Distribution section introduces distribution systems and the system configurations in different countries and different load areas served by the grid. The Smart Meters and Customers section assesses how smart meters enable the customers to interact with the power grid. Socio-economic issues and information and communications technology requirements are covered in dedicated articles.The Smart Grid Handbook will meet the need for a high quality reference work to support advanced study and research in the field of electrical power generation, transmission and distribution. It will be an essential reference for regulators and government officials, testing laboratories and certification organizations, and engineers and researchers in Smart Grid-related industries.
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Author: Oscar Daniel Quiroga
Author: German Ardul Munoz-Hernandez
Author: P. Wang
Author: Qiang Lu
Author: Committee 8th Pwr Sys Comp Conf
Author: Nand Kishor
Author: Amir Ebrahimi
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