Modern Aspects Of Power System Frequency Stability And Control

Modern Aspects of Power System Frequency Stability and Control describes recently-developed tools, analyses, developments and new approaches in power system frequency, stability and control, filling a gap that, until the last few years, has been unavailable to power system engineers. Deals with specific practical issues relating to power system frequency, control and stability Focuses on low-inertia and smart grid systems Describes the fundamental processes by which the frequency response requirements of power systems in daily operation are calculated, together with a description of the actual means of calculation of these requirements

Frequency control as a major function of automatic generation control is one of the important control problems in electric power system design and operation, and is becoming more signi?cant today because of the increasing size, changing structure, emerging new uncertainties, environmental constraints and the complexity of power systems. In the last two decades, many studies have focused on damping control and vo- age stability and the related issues, but there has been much less work on the power system frequency control analysis and synthesis. While some aspects of frequency control have been illustrated along with individual chapters, many conferences and technical papers, a comprehensive and sensible practical explanation of robust f- quency control in a book form is necessary. This book provides a thorough understanding of the basic principles of power system frequency behaviour in wide range of operating conditions. It uses simple frequency response models, control structures and mathematical algorithms to adapt modern robust control theorems with frequency control issue and conceptual exp- nations. Most developed control strategies are examined by real-time simulations. Practical methods for computer analysis and design are emphasized. This book emphasizes the physical and engineering aspects of the power s- tem frequency control design problem, providing a conceptual understanding of frequency regulation, and application of robust control techniques. The main aim is to develop an appropriate intuition relative to the robust load frequency regulation problem in real-world power systems, rather than to describe sophisticated mat- matical analytical methods.

The objective of this book is to investigate the stability problems of power systems by using state-space analysis. The authors have aimed to meet the need for a book that would cover fairly briefly the theoretical and well as practical aspects of the problem, including up-to-date methods of calculation and stability improvement. When preparing the text, they have assumed that the reader has a basic knowledge (but not above graduate level) of network theory, matrix algebra and control theory. The book combines the simplicity and transparency of the classic stability principles with the advantages of modern treatment based on system theory and state-space techniques. Theoretical passages are always accompanied by analog or digital computer study results. Detailed analysis is given of voltage regulator and field governor effects as far as they influence the steady-state and/or transient stability of generating units. This is the first book in the field to treat in detail the stability questions of long distance, EHV power interconnections. In view of increasing precision requirements, the usefulness of different simplified stability models is widely dealt with.

This updated edition of the industry standard reference on power system frequency control provides practical, systematic and flexible algorithms for regulating load frequency, offering new solutions to the technical challenges introduced by the escalating role of distributed generation and renewable energy sources in smart electric grids. The author emphasizes the physical constraints and practical engineering issues related to frequency in a deregulated environment, while fostering a conceptual understanding of frequency regulation and robust control techniques. The resulting control strategies bridge the gap between advantageous robust controls and traditional power system design, and are supplemented by real-time simulations. The impacts of low inertia and damping effect on system frequency in the presence of increased distributed and renewable penetration are given particular consideration, as the bulk synchronous machines of conventional frequency control are rendered ineffective in emerging grid environments where distributed/variable units with little or no rotating mass become dominant. Frequency stability and control issues relevant to the exciting new field of microgrids are also undertaken in this new edition. As frequency control becomes increasingly significant in the design of ever-more complex power systems, this expert guide ensures engineers are prepared to deploy smart grids with optimal functionality.

A comprehensive engineering guide concerned with understanding, modeling, analyzing, and mitigating power system stability and control problems--intended to meet the needs of practicing engineers associated with the electric utility industry as well as those of graduate students and researchers. The volume is divided into three parts: general background (2 chapters); equipment characteristics and modeling (9 chapters); and system stability--physical aspects, analysis, and improvement (6 chapters). Sponsored by the Electric Power Research Institute. Annotation copyright by Book News, Inc., Portland, OR

The classic guide to power system stability and control―updated for the latest advances This thoroughly revised engineering guide contains the hands-on information needed to understand, model, analyze, and solve problems using the latest technical tools. You will explore the structure of modern power systems, the different levels of control, and the nature of stability problems. Power System Stability and Control, Second Edition contains complete explanations of equipment characteristics and modeling techniques along with real-world examples. This edition features coverage of adaptive control and other emerging applications, including cyber security of power systems. Coverage includes: General characteristics of modern power systems The power grid stability problem Synchronous machine theory and modelling Synchronous machine parameters Synchronous machine representation in stability studies AC transmission Power system loads Excitation systems Prime movers and energy supply systems High-voltage DC transmission Control of active and reactive power Small-signal, transient, and voltage stability Sub-synchronous oscillations Mid- and long-term stability Methods of improving stability

This book presents innovative techniques and approaches to maintaining dynamic security of modern power systems that have a high penetration of renewable energy sources (RESs). The authors propose a number of frequency control strategies and schemes to address and evade stability problems in system frequency and voltage that can lead to power interruption and power failure/blackout. The book includes case studies aimed at validating the effectiveness of the techniques and strategies presented, and will be a valuable resource for researchers working in electrical power engineering, power system stability, dynamics and control, and microgrids.

The third edition of the landmark book on power system stability and control, revised and updated with new material The revised third edition of Power System Control and Stability continues to offer a comprehensive text on the fundamental principles and concepts of power system stability and control as well as new material on the latest developments in the field. The third edition offers a revised overview of power system stability and a section that explores the industry convention of q axis leading d axis in modeling of synchronous machines. In addition, the third edition focuses on simulations that utilize digital computers and commercial simulation tools, it offers an introduction to the concepts of the stability analysis of linear systems together with a detailed formulation of the system state matrix. The authors also include a revised chapter that explores both implicit and explicit integration methods for transient stability. Power System Control and Stability offers an in-depth review of essential topics and: Discusses topics of contemporary and future relevance in terms of modeling, analysis and control Maintains the approach, style, and analytical rigor of the two original editions Addresses both power system planning and operational issues in power system control and stability Includes updated information and new chapters on modeling and simulation of round-rotor synchronous machine model, excitation control, renewable energy resources such as wind turbine generators and solar photovoltaics, load modeling, transient voltage instability, modeling and representation of three widely used FACTS devices in the bulk transmission network, and the modeling and representation of appropriate protection functions in transient stability studies Contains a set of challenging problems at the end of each chapter Written for graduate students in electric power and professional power system engineers, Power System Control and Stability offers an invaluable reference to basic principles and incorporates the most recent techniques and methods into projects.