Download or read book Voltage Control in Distribution Networks Using On load Tap Changer Transformers written by Chao Gao and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electronic Tap changer for Distribution Transformers written by Jawad Faiz and published by Springer Science & Business Media. This book was released on 2011-06-24 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference collects all relevant aspects electronic tap-changer and presents them in a comprehensive and orderly manner. It explains logically and systematically the design and optimization of a full electronic tap-changer for distribution transformers. The book provides a fully new insight to all possible structures of power section design and categorizes them comprehensively, including cost factors of the design. In the control section design, the authors review mechanical tap-changer control systems and they present the modeling of a full electronic tap-changer as well as a closed-loop control of the full-electronic tap-changer. The book is written for electrical engineers in industry and academia but should be useful also to postgraduate students of electrical engineering.

Download or read book Critical Analysis of Voltage Regulation on Mismatched Parallel connected Transformers written by Lufuno Seth Madzonga and published by . This book was released on 2011 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Voltage control is an essential part of the electricity transmission and distribution network system for maintaining voltage within statutory limits at the substation bus and at the consumer's point of supply. The most popular voltage control method on the transmission and distribution network system uses the on-load tap changer (OLTC) transformer. This study proposes the use of Fuzzy Logic Control (FLC) systems on the on-load tap changers when two or more mismatched transformers are connected in parallel in order to control the voltage supply to local customers. The actual voltage recordings and on-load tap change operations for each of the paralleled transformers have been analyzed and modelled on MATLAB/Simulink in order to develop an improved control algorithm using Fuzzy Logic Control. With the two-input, one-output FLC system with seven linguistic values giving 49 control rules, the number of tap change operations are minimized and the bus voltage is maintained within the statutory limits.

Download or read book Optimal Voltage Control of Parallel Distribution Transformer Using on Load Tap Changer written by Zuraidy Kadir and published by . This book was released on 2014 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Voltage Control and Protection in Electrical Power Systems written by Sandro Corsi and published by Springer. This book was released on 2015-06-19 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the author’s twenty years of experience, this book shows the practicality of modern, conceptually new, wide area voltage control in transmission and distribution smart grids, in detail. Evidence is given of the great advantages of this approach, as well as what can be gained by new control functionalities which modern technologies now available can provide. The distinction between solutions of wide area voltage regulation (V-WAR) and wide area voltage protection (V-WAP) are presented, demonstrating the proper synergy between them when they operate on the same power system as well as the simplicity and effectiveness of the protection solution in this case. The author provides an overview and detailed descriptions of voltage controls, distinguishing between generalities of underdeveloped, on-field operating applications and modern and available automatic control solutions, which are as yet not sufficiently known or perceived for what they are: practical, high-performance and reliable solutions. At the end of this thorough and complex preliminary analysis the reader sees the true benefits and limitations of more traditional voltage control solutions, and gains an understanding and appreciation of the innovative grid voltage control and protection solutions here proposed; solutions aimed at improving the security, efficiency and quality of electrical power system operation around the globe. Voltage Control and Protection in Electrical Power Systems: from System Components to Wide Area Control will help to show engineers working in electrical power companies and system operators the significant advantages of new control solutions and will also interest academic control researchers studying ways of increasing power system stability and efficiency.

Download or read book Control and Automation of Electrical Power Distribution Systems written by James Northcote-Green and published by CRC Press. This book was released on 2017-12-19 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Operational Voltage Control of Future Distribution Networks written by Jianing Cao and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Voltages in distribution networks are subject to variations primarily due to varying demand and the intermittent nature of growing renewable generation. Conventionally voltages are regulated only at certain locations such as distribution substations with some fixed settings for control equipment such as voltage targets or tap changers of under-load tap changing (ULTC) transformers and switching status of shunt capacitors. These settings are normally determined by operators in control rooms and are changed on the condition that power supply cannot be adequately delivered. A fixed constant setting for the controllable devices may not guarantee secured voltage profiles for all load centres at all times during the course of a day and may lead to frequent operations due to fluctuations in generation and demand profiles, which will eventually lead to wear on the control equipment. This thesis investigates the operational control of voltages on distribution networks and proposes a control strategy that manages voltage control devices from an operational planning perspective in order to maintain a desired level of voltage security by applying the most cost-effective control actions. The proposed methodology integrates power system sensitivity analysis and an artificial intelligence (AI) planning approach to schedule voltage control actions for a given electrical system across a specific planning time period based on known generation and demand profiles. The concept of a failsafe mode is incorporated into the proposed control strategy to deal with the potential loss of data communication or ultimate failure of the planned solutions. A typical radial distribution network model was studied under a range of scenarios and the simulation results demonstrated that the proposed methodology was capable of automatically planning control settings for ULTC transformers and MSCs to maintain requisite voltage limits and outperformed the conventional methods by eliminating the number of voltage violations and also reducing the number of control operations. The flexibility of the proposed methodology allows it to be integrated to the existing software platforms used by some of the UK distribution network operators (DNOs).

Download or read book Optimal Operation of Active Distribution Networks written by Feifan Shen and published by Elsevier. This book was released on 2023-08-29 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimal Operation of Active Distribution Networks: Congestion Management, Voltage Control and Service Restoration provides researchers and practitioners with a clear and modern understanding of how to optimize the economic, secure and resilient operation of active distribution networks. The book provides case studies, modern implementations and supporting flowcharts and code, along with current research in congestion management, service restoration and voltage control of active distribution networks. Chapter provide an overview of the active distribution network concept, present key approaches for the congestion management of active distribution networks, and cover approaches in uncertainty, coordination of DLMP, scheduled re-profiling, and more. Other sections cover real-time congestion management and service restoration of active distribution networks. - Reviews how to optimally operate active distribution networks under normal conditions and demonstrates worked solutions and contingency planning to mitigate unforeseen challenges - Provides clear guidance on optimizing congestion management, voltage control and service restoration in DER-heavy systems - Demonstrates how to implement distributed voltage control in systems using active distribution networks - Provides an extensive body of methods, associated case studies, worked solutions and implementation discussions on how to embed best practices in engineering and research workflows

Download or read book Electric Distribution Network Management and Control written by Ali Arefi and published by Springer. This book was released on 2018-04-04 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the recent research advances in the area of operation, management and control of electricity distribution networks. It addresses various aspects of distribution network management, including operation, customer engagement and technology accommodation. Electricity distribution networks are an important part of the power delivery system, and the smart control and management of distribution networks is vital in order to satisfy technical, economic, and customer requirements. A new management philosophy, techniques, and methods are essential to handle uncertainties, security, and stability associated with the integration of renewable-based distributed generation units, demand forecast and customer needs. This book discusses these topics in the context of managing the capacity of distribution networks while addressing the future needs of electricity systems. Furthermore, the efficient and economic operation of distribution networks is an essential part of management of system for effective use of resources, and as such the also addresses operation and control approaches and techniques suitable for future distribution networks.

Download or read book Autonomous Voltage Control Strategies in Distribution Grids with Photovoltaic Systems written by Stetz, Thomas and published by kassel university press GmbH. This book was released on 2014-01-01 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis analyzes the technical and economic potential of autonomous voltage control strategies for improving distribution grid operation with high shares of photovoltaic (PV) generation. Key issues include: The simultaneity of local photovoltaic generation and local consumption as well as its influence on reverse power flows.The theoretical potential of autonomous voltage control strategies to increase a grid’s hosting capacity for additional photovoltaic generation.Stability analyses of a voltage-dependent combined active and reactive power control strategy for photovoltaic inverters.The cost savings potential (CAPEX & OPEX) of autonomous voltage control strategies, compared to traditional grid reinforcement measures. The results suggest that autonomous voltage control strategies can be used to improve the technical and economic distribution grid integration of PV systems. If applied appropriately, these strategies are capable of deferring grid reinforcement measures and hence shifting investment costs to future points in time. Of all investigated autonomous voltage control strategies, the on-load tap changer voltage control and a combined Q(V)/P(V) PV inverter control strategy showed the most promising results, from a technical and an economic perspective.

Download or read book Electric Distribution Systems written by Abdelhay A. Sallam and published by John Wiley & Sons. This book was released on 2011-04-18 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive treatment of electric distribution systems. Few books cover specific topics in more depth and there is hardly any book that deals with the key topics of interest to distribution system engineers. The book introduces these topics from two points of view: 1) The practical point of view by providing practical examples and the problems which can be solved. 2) The academic point of view where the analysis and various techniques used for distribution system planning are explained. The most outstanding feature of this book is a combination of practical and academic explanation of its contents. Another outstanding feature is a collection of the traditional and current topics of distribution systems condensed into one book. The reader will gain an understanding of distribution systems from both practical and academic aspects, will be able to outline and design a distribution system for specific loads, cities, zones, etc.. Readers will also be able to recognize the problems which may occur during the operation of distribution systems and be able to propose solutions for these problems.

Download or read book The J P Transformer Book written by A. C. Franklin and published by Elsevier. This book was released on 2016-10-12 with total page 831 pages. Available in PDF, EPUB and Kindle. Book excerpt: The J&P Transformer Book, 11th Edition deals with the design, installation, and maintenance of transformers. The book contains technical information, tables, calculations, diagrams, and illustrations based on information supplied by transformer manufacturers and related industries. It reviews fundamental transformer principles, the magnetic circuit, the characteristics of, and general types of transformers. The text contains tables showing the information that should be given to the transformer manufacturer to be used as a basis in preparing quotations. Transformer designs include three important distinct circuits to minimize losses: the electric, the magnetic, and the dielectric circuits. The book emphasizes that the maximum efficiency of any transformer occurs at the load at which the iron loss equals the copper loss. The text also discusses how the maximum overall operating economy of transformer substations, especially those with several transformers operating in parallel, can be effected by reducing the total transformation losses to a minimum under all loading conditions. The book is an essential reference for architects, system planners, or electrical engineers concerned with design, installation, and maintenance of transformers. It can also prove useful for electrical engineering students.

Download or read book Observability of Power Distribution Systems written by Urban Kuhar and published by Springer Nature. This book was released on 2020-02-04 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book develops, implements and thoroughly evaluates a three-phase distribution system state estimation (DSSE) model. It gathers all relevant state-of-the-art knowledge and provides the missing pieces to offer readers a complete picture of several essential design and implementation factors and ways to address them. The book presents a three-phase branch model that allows of conductors, transformers, tap changers, and voltage regulators to be modelled. Its main features include: • modelling of all major power distribution components; • sensitivity analysis; and • numerical solution to the estimation problem. This book presents a focused account of three-phase DSSE, making it of interest to postgraduate students, researchers and engineers in the field of power systems and distribution systems.

Download or read book Advanced Technologies Systems and Applications VI written by Naida Ademović and published by Springer Nature. This book was released on 2021-11-16 with total page 803 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the innovative and interdisciplinary application of advanced technologies. It includes the scientific outcomes and results of the conference 12th Day of Bosnian-Herzegovinian American Academy of Art and Sciences held in Mostar, Bosnia, and Herzegovina, June 24-27, 2021. The latest developments in various fields of engineering have been presented through various papers in civil engineering, mechanical engineering, computing, electrical and electronics engineering, and others. A new session, Sustainable Urban Development: Designing Smart, Inclusive and Resilient Cities, was organized, enabling experts in this field to exchange their knowledge and expertise.

Download or read book Converter Based Dynamics and Control of Modern Power Systems written by Antonello Monti and published by Academic Press. This book was released on 2020-10-22 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Converter-Based Dynamics and Control of Modern Power Systems addresses the ongoing changes and challenges in rotating masses of synchronous generators, which are transforming dynamics of the electrical system. These changes make it more important to consider and understand the role of power electronic systems and their characteristics in shaping the subtleties of the grid and this book fills that knowledge gap. Balancing theory, discussion, diagrams, mathematics, and data, this reference provides the information needed to acquire a thorough overview of resilience issues and frequency definition and estimation in modern power systems. This book offers an overview of classical power system dynamics and identifies ways of establishing future challenges and how they can be considered at a global level to overcome potential problems. The book is designed to prepare future engineers for operating a system that will be driven by electronics and less by electromechanical systems. - Includes theory on the emerging topic of electrical grids based on power electronics - Creates a good bridge between traditional theory and modern theory to support researchers and engineers - Links the two fields of power systems and power electronics in electrical engineering

Download or read book Smart Solar PV Inverters with Advanced Grid Support Functionalities written by Rajiv K. Varma and published by John Wiley & Sons. This book was released on 2021-12-21 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn the fundamentals of smart photovoltaic (PV) inverter technology with this insightful one-stop resource Smart Solar PV Inverters with Advanced Grid Support Functionalities presents a comprehensive coverage of smart PV inverter technologies in alleviating grid integration challenges of solar PV systems and for additionally enhancing grid reliability. Accomplished author Rajiv Varma systematically integrates information from the wealth of knowledge on smart inverters available from EPRI, NREL, NERC, SIWG, EU-PVSEC, CIGRE, IEEE publications; and utility experiences worldwide. The book further presents a novel, author-developed and patented smart inverter technology for utilizing solar PV plants both in the night and day as a Flexible AC Transmission System (FACTS) Controller STATCOM, named PV-STATCOM. Replete with case studies, this book includes over 600 references and 280 illustrations. Smart Solar PV Inverters with Advanced Grid Support Functionalities’ features include: Concepts of active and reactive power control; description of different smart inverter functions, and modeling of smart PV inverter systems Distribution system applications of PV-STATCOM for dynamic voltage control, enhancing connectivity of solar PV and wind farms, and stabilization of critical motors Transmission system applications of PV-STATCOM for improving power transfer capacity, power oscillation damping (POD), suppression of subsynchronous oscillations, mitigation of fault induced delayed voltage recovery (FIDVR), and fast frequency response (FFR) with POD Hosting capacity for solar PV systems, its enhancement through effective settings of different smart inverter functions; and control coordination of smart PV inverters Emerging smart inverter grid support functions and their pioneering field demonstrations worldwide, including Canada, USA, UK, Chile, China, and India. Perfect for system planners and system operators, utility engineers, inverter manufacturers and solar farm developers, this book will prove to be an important resource for academics and graduate students involved in electrical power and renewable energy systems.

Download or read book Renewable Energy in Power Systems written by David Infield and published by John Wiley & Sons. This book was released on 2019-12-02 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up to date account of renewable sources of electricity generation and their integration into power systems With the growth in installed capacity of renewable energy (RE) generation, many countries such as the UK are relying on higher levels of RE generation to meet targets for reduced greenhouse gas emissions. In the face of this, the integration issue is now of increasing concern, in particular to system operators. This updated text describes the individual renewable technologies and their power generation characteristics alongside an expanded introduction to power systems and the challenges posed by high levels of penetrations from such technologies, together with an account of technologies and changes to system operation that can ease RE integration. Features of this edition: Covers power conditioning, the characteristics of RE generators, with emphasis on their time varying nature, and the use of power electronics in interfacing RE sources to grids Outlines up to date RE integration issues such as power flow in networks supplied from a combination of conventional and renewable energy sources Updated coverage of the economics of power generation and the role of markets in delivering investment in sustainable solutions Considers the challenge of maintaining power balance in a system with increasing RE input, including recent moves toward power system frequency support from RE sources Offers an insightful perspective on the shape of future power systems including offshore networks and demand side management Includes worked examples that enhance this edition’s suitability as a textbook for introductory courses in RE systems technology Firmly established as an essential reference, the Second Edition of Renewable Energy in Power Systems will prove a real asset to engineers and others involved in both the traditional power and fast growing renewables sector. This text should also be of particular benefit to students of electrical power engineering and will additionally appeal to non-specialists through the inclusion of background material covering the basics of electricity generation.