Provision Of Ancillary Services By Distributed Generators

This book presents new and practical solutions to solve the coordination problem faced due to the increasing integration of renewable energy sources into existing electricity transmission networks it addresses how the subsequent technological revolution is not only affecting the structure of the electricity markets, but also the interactions between transmission system operators (TSO) and distribution system operators (DSO). A must-have for smart grid analysis, this book presents models and scenario buildups of complex systems and incorporates the experience of three technological pilots that are analyzing special issues connected to network monitoring and control, and participation to a would-be ancillary services market from special subjects. The reader will benefit from the experience drawn from SmartNet, a major research project encompassing 22 partners from nine EU countries and including input gathered from a significant number of industrial partners.

In the recent years the electrical power utilities have undergone rapid restructuring process worldwide. Indeed, with deregulation, advancement in technologies and concern about the environmental impacts, competition is particularly fostered in the generation side, thus allowing increased interconnection of generating units to the utility networks. These generating sources are called distributed generators (DG) and defined as the plant which is directly connected to distribution network and is not centrally planned and dispatched. These are also called embedded or dispersed generation units. The rating of the DG systems can vary between few kW to as high as 100 MW. Various new types of distributed generator systems, such as microturbines and fuel cells in addition to the more traditional solar and wind power are creating significant new opportunities for the integration of diverse DG systems to the utility. Interconnection of these generators will offer a number of benefits such as improved reliability, power quality, efficiency, alleviation of system constraints along with the environmental benefits. Unlike centralized power plants, the DG units are directly connected to the distribution system; most often at the customer end. The existing distribution networks are designed and operated in radial configuration with unidirectional power flow from centralized generating station to customers. The increase in interconnection of DG to utility networks can lead to reverse power flow violating fundamental assumption in their design. This creates complexity in operation and control of existing distribution networks and offers many technical challenges for successful introduction of DG systems. Some of the technical issues are islanding of DG, voltage regulation, protection and stability of the network. Some of the solutions to these problems include designing standard interface control for individual DG systems by taking care of their diverse characteristics, finding new ways to/or install and control these DG systems and finding new design for distribution system. DG has much potential to improve distribution system performance. The use of DG strongly contributes to a clean, reliable and cost effective energy for future. This book deals with several aspects of the DG systems such as benefits, issues, technology interconnected operation, performance studies, planning and design. Several authors have contributed to this book aiming to benefit students, researchers, academics, policy makers and professionals. We are indebted to all the people who either directly or indirectly contributed towards the publication of this book.

As a result of deregulation, the US electric utility industry is undergoing a dramatic transformation with far-reaching technical and social consequences. At the heart of this transformation lies Distributed Generation (DG)-the substitution of centralized electricity production with smaller-scale technologies located in or near facilities and powered by natural gas or renewable resources. The Electric Power Research Institute estimates that 20 percent of all new power generation will use distributed, not centralized technologies. Distributed Generation: The Power Paradigm for the New Millennium is the first step to understanding the myriad issues that surround the newest, most significant trend in power production since the steam turbine. Chapters contributed by the top experts in their fields address virtually every aspect of this energy "revolution," from its associated technologies to the regulatory environment and from choosing the right DG system for a given purpose to the novel financial and economic opportunities this paradigm shift presents. This book gives engineers and energy business developers their first opportunity to explore and gain a broad understanding of the new energy landscape. With its detailed discussion of the near-term technologies that will see application in the next few years, Distributed Generation: The Power Paradigm for the New Millennium will undoubtedly become the industry's standard reference.

Distributed Generation Systems: Design, Operation and Grid Integration closes the information gap between recent research on distributed generation and industrial plants, and provides solutions to their practical problems and limitations. It provides a clear picture of operation principles of distributed generation units, not only focusing on the power system perspective but targeting a specific need of the research community. This book is a useful reference for practitioners, featuring worked examples and figures on principal types of distributed generation with an emphasis on real-world examples, simulations, and illustrations. The book uses practical exercises relating to the concepts of operating and integrating DG units to distribution networks, and helps engineers accurately design systems and reduce maintenance costs. Provides examples and datasheets of principal systems and commercial data in MATLAB Presents guidance for accurate system designs and maintenance costs Identifies trouble shooting references for engineers Closes the information gap between recent research on distributed generation and industrial plants

This open access book presents thirteen outstanding doctoral dissertations in Information Technology from the Department of Electronics, Information and Bioengineering, Politecnico di Milano, Italy. Information Technology has always been highly interdisciplinary, as many aspects have to be considered in IT systems. The doctoral studies program in IT at Politecnico di Milano emphasizes this interdisciplinary nature, which is becoming more and more important in recent technological advances, in collaborative projects, and in the education of young researchers. Accordingly, the focus of advanced research is on pursuing a rigorous approach to specific research topics starting from a broad background in various areas of Information Technology, especially Computer Science and Engineering, Electronics, Systems and Control, and Telecommunications. Each year, more than 50 PhDs graduate from the program. This book gathers the outcomes of the thirteen best theses defended in 2019-20 and selected for the IT PhD Award. Each of the authors provides a chapter summarizing his/her findings, including an introduction, description of methods, main achievements and future work on the topic. Hence, the book provides a cutting-edge overview of the latest research trends in Information Technology at Politecnico di Milano, presented in an easy-to-read format that will also appeal to non-specialists.

New methods for automation and intelligent systems applications, new trends in telecommunications, and a recent focus on renewable energy are reshaping the educational landscape of today's power engineer. Providing a modern and practical vehicle to help students navigate this dynamic terrain, Electric Power Distribution, Automation, Protection, and Control infuses new directions in computation, automation, and control into classical topics in electric power distribution. Ideal for a one-semester course for senior undergraduates or first-year graduate students, this text works systematically through basic distribution principles, renewable energy sources, computational tools and techniques, reliability, maintenance, distribution automation, and telecommunications. Numerous examples, problems, and case studies offer practical insight into the concepts and help build a working knowledge of protection schemes, fault analysis and synthesis, reliability analysis, intelligent automation systems, distribution management systems, and distribution system communications. The author details different renewable energy sources and teaches students how to evaluate them in terms of size, cost, and performance. Guided firmly by the author's wealth of industrial and academic experience, your students will learn the tools and techniques used to design, build, and operate future generations of distribution systems with unparalleled efficiency, robustness, and sustainability.