June 18, 2021

Download Ebook Free Converter-based Dynamics And Control Of Modern Power Systems

Converter-Based Dynamics and Control of Modern Power Systems

Converter-Based Dynamics and Control of Modern Power Systems
Author : Antonello Monti,Federico Milano,Ettore Bompard,Xavier Guillaud
Publisher : Academic Press
Release Date : 2020-11-02
Category : Technology & Engineering
Total pages :374
GET BOOK

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

Frequency Variations in Power Systems

Frequency Variations in Power Systems
Author : Federico Milano,Alvaro Ortega Manjavacas
Publisher : John Wiley & Sons
Release Date : 2020-06-16
Category : Science
Total pages :360
GET BOOK

Frequency Variations in Power Systems: Modeling, State Estimation and Control presents the Frequency Divider Formula (FDF); a unique approach that defines, calculates and estimates the frequency in electrical energy systems. This authoritative book is written by two noted researchers on the topic. They define the meaning of frequency of an electrical quantity (such as voltage and current) in non-stationary conditions (for example the frequency is not equal to the nominal one) and pose the foundation of the frequency divider formula. The book describes the consequences of using a variable frequency in power system modelling and simulations, in state estimation and frequency control applications. In addition, the authors include a discussion on the applications of the frequency divider in systems where part of the generation is not based on synchronous machines, but rather on converter-interfaced energy resources, such as wind and solar power plants. This important book: Offers a review that clearly defines and shows how the Frequency Divider Formula can be applied Discusses the link between frequency and energy in power systems Presents a unified vision that accurately reveals the common thread that links modelling, control and estimation Includes information on the many implications that “local frequency variations” have on power system dynamics and control Contains several numerical examples Written for researchers, academic staff members, students, specialised consultants and professional software developers, Frequency Variations in Power Systems questions the conventional transient stability model of power system and proposes a new formulation.

Modern Control of DC-Based Power Systems

Modern Control of DC-Based Power Systems
Author : Marco Cupelli,Antonino Riccobono,Markus Mirz,Mohsen Ferdowsi,Antonello Monti
Publisher : Academic Press
Release Date : 2018-06-08
Category : Technology & Engineering
Total pages :302
GET BOOK

Modern Control of DC-Based Power Systems: A Problem-Based Approach addresses the future challenges of DC Grids in a problem-based context for practicing power engineers who are challenged with integrating DC grids in their existing architecture. This reference uses control theory to address the main concerns affecting these systems, things like generation capacity, limited maximum load demands and low installed inertia which are all set to increase as we move towards a full renewable model. Offering a new approach for a problem-based, practical approach, the book provides a coordinated view of the topic with MATLAB®, Simulink® files and additional ancillary material provided. Includes Simulink® Files (of examples and for lab training classes) and MATLAB® files Presents video slides to support the problem-based approach to understanding DC Power System control and application Provides stability analysis of DC networks and examples of common stability problems

Control of Voltage-source Converters Considering Virtual Inertia Dynamics

Control of Voltage-source Converters Considering Virtual Inertia Dynamics
Author : Tri Nguyen
Publisher : Unknown
Release Date : 2020
Category : Electric current converters
Total pages :71
GET BOOK

Author's abstract: Controlling power-electronic converters in power systems has significantly gained more attention due to the rapid penetration of alternative energy sources. This growth in the depth of penetration also poses a threat to the frequency stability of modern power systems. Photovoltaic and wind power systems utilizing power-electronic converters without physical rotating masses, unlike traditional power generations, provide low inertia, resulting in frequency instability. Different research has developed the control aspects of power-electronic converters, offering many control strategies for different operation modes and enhancing the inertia of converter-based systems. The precise control algorithm that can improve the inertial response of converter-based systems in the power grid is called virtual inertia. This thesis employs a control methodology that mimics synchronous generators characteristics based on the swing equation of rotor dynamics to create virtual inertia. The models are also built under different cases, including grid-connected and islanded situations, using the swing equation with inner current and voltage outer loops. Analysis of the simulation results in MATLAB/Simulink demonstrates that active and reactive power are independently controlled under the grid-imposed mode, voltage and frequency are controlled under the islanded mode, and frequency stability of the system is enhanced by the virtual inertia emulation using swing equation. On this basis, it is recommended that the swing equation-based approach is incorporated with the current and voltage control loops to achieve better protection under over-current conditions. Further works are required to discover other factors that could improve the effectiveness of the models.

Dynamics, Robust Control, and Power Management of Voltage-source Converters in Hybrid Multiterminal AC/DC Grids

Dynamics, Robust Control, and Power Management of Voltage-source Converters in Hybrid Multiterminal AC/DC Grids
Author : Masoud Davari
Publisher : Unknown
Release Date : 2016
Category : Electricity
Total pages :246
GET BOOK

The electric energy sector is moving toward extensive integration of clean and renewable energy sources, energy storage units, and modern loads via highly efficient and flexible multiterminal dc grids integrated within the traditional ac grid infrastructure in both transmission and distribution levels. A voltage-source converter (VSC) is the main technology enabling the interconnection of dc and ac grids. In such demanding applications, effective and robust integration of ac and dc grids, in the presence of coupling nonlinear dynamics, parametric uncertainties, and disturbances, is crucial to maintain the stability and robust performance of the overall ac/dc dynamic system. Motivated by this objective, this thesis addresses the dynamics, robust control, and power management of VSCs in hybrid multiterminal ac/dc grids. Firstly, a robust multi-objective dc-link voltage controller is developed for a bi-directional VSC regulating the dc-link voltage of a multiterminal dc grid; i.e., the VSC operates as a dc-voltage power-port. The proposed controller ensures excellent tracking performance, robust disturbance rejection, and robust stability against operating point and parameter variation with a simple fixed-parameter low-order controller. Secondly, the dynamics and control of VSCs considering the instantaneous power of both ac- and dc-side filters and dc grid uncertainties are addressed in the this thesis. The proposed controller ensures excellent tracking performance, robust disturbance rejection, and robust performance against operating point and parameter variation with a simple fixed-parameter controller. Thirdly, this thesis presents a natural-frame variable-structure-based nonlinear control system for the master VSC applied in multiterminal grids to overcome problems associated with conventional dc-link voltage controllers, which are suffering from stability and performance issues, mainly attributed to the small-signal-based control design approach and the use of cascaded control structure based on the power balance framework that yields unmodeled nonlinear dynamics. Fourthly, this thesis presents a robust vector-controlled VSC that facilitates full converter power injection at weak and very weak ac grid conditions (i.e., when the short-circuit capacity ratio is one). The controller overcomes problems related to the stability and performance of conventional vector-controlled VSCs integrated into very weak ac grids (high impedance grids) because of the increased coupling between the converter and grid dynamics, via the phase-locked loop (PLL). As a result, a detailed ac-bus voltage dynamic model, including the PLL dynamics, is developed and validated in this thesis. Then, the model is used to design a robust optimal ac-bus voltage controller to stabilize the dynamics under operating point variation and grid impedance uncertainty. Fifthly, this thesis addresses the challenges associated with a dc-voltage-controlled VSC interfacing a wind turbine into a dc grid, which is gaining widespread acceptance under weak grid connection or isolated operation. Under weak grid connection or isolated operation, the machine-side VSC regulates the dc-link voltage via changes in the generator speed. However, several control difficulties are yielded; important problems are: 1) the nonlinear plant dynamics with a wide range of operating point variation; 2) the control lever is mainly the generator speed, which complicates the dc-link voltage control dynamics; 3) the presence of uncertain disturbances associated with dynamic loads (e.g., power-converter-based loads) connected to the dc grid and wind speed variation; and 4) the presence of parametric uncertainty associated with the equivalent dc-link capacitance due to connecting/disconnecting converter-based loads. Finally, this thesis presents a robust power sharing and dc-link voltage regulation controller for grid-connected VSCs in dc grids applications to overcome difficulties and problems related to the dynamics and stability of a grid-connected VSC with dc power sharing droop control. Major difficulties are: 1) ignoring the effect of the outer droop loop on the dc-link voltage dynamics when the dc-link voltage controller is designed, which induces destabilizing dynamics, particularly under variable droop gain needed for optimum economic operation, energy management, and successful network operation under converter outages and contingencies; 2) uncertainties in the dc grid parameters (e.g., passive load resistance and equivalent capacitance as viewed by the dc side of the VSC); and 3) disturbances in the dc grid (i.e., power absorbed or injected from/to the dc grid), which change the operating point and the converter dynamics by acting as a state-dependent disturbance. A theoretical analysis and comparative simulation and experimental results are presented in this thesis to show the validity and effectiveness of the developed models and proposed control structures.

Photovoltaic Power System

Photovoltaic Power System
Author : Weidong Xiao
Publisher : John Wiley & Sons
Release Date : 2017-07-24
Category : Science
Total pages :400
GET BOOK

Photovoltaic Power System: Modelling, Design and Control is an essential reference with a practical approach to photovoltaic (PV) power system analysis and control. It systematically guides readers through PV system design, modelling, simulation, maximum power point tracking and control techniques making this invaluable resource to students and professionals progressing from different levels in PV power engineering. The development of this book follows the author's 15-year experience as an electrical engineer in the PV engineering sector and as an educator in academia. It provides the background knowledge of PV power system but will also inform research direction. Key features: Details modern converter topologies and a step-by-step modelling approach to simulate and control a complete PV power system. Introduces industrial standards, regulations, and electric codes for safety practice and research direction. Covers new classification of PV power systems in terms of the level of maximum power point tracking. Contains practical examples in designing grid-tied and standalone PV power systems. Matlab codes and Simulink models featured on a Wiley hosted book companion website.

Dynamics and Control of Switched Electronic Systems

Dynamics and Control of Switched Electronic Systems
Author : Francesco Vasca,Luigi Iannelli
Publisher : Springer Science & Business Media
Release Date : 2012-03-30
Category : Technology & Engineering
Total pages :494
GET BOOK

The increased efficiency and quality constraints imposed on electrical energy systems have inspired a renewed research interest in the study of formal approaches to the analysis and control of power electronics converters. Switched systems represent a useful framework for modeling these converters and the peculiarities of their operating conditions and control goals justify the specific classification of “switched electronic systems”. Indeed, idealized switched models of power converters introduce problems not commonly encountered when analyzing generic switched models or non-switched electrical networks. In that sense the analysis of switched electronic systems represents a source for new ideas and benchmarks for switched and hybrid systems generally. Dynamics and Control of Switched Electronic Systems draws on the expertise of an international group of expert contributors to give an overview of recent advances in the modeling, simulation and control of switched electronic systems. The reader is provided with a well-organized source of references and a mathematically-based report of the state of the art in analysis and design techniques for switched power converters. Intuitive language, realistic illustrative examples and numerical simulations help the reader to come to grips with the rigorous presentation of many promising directions of research such as: converter topologies and modulation techniques; continuous-time, discrete-time and hybrid models; modern control strategies for power converters; and challenges in numerical simulation. The guidance and information imparted in this text will be appreciated by engineers, and applied mathematicians working on system and circuit theory, control systems development, and electronic and energy conversion systems design.

Seventh International Conference on AC-DC Power Transmission, 28-30 November 2001

Seventh International Conference on AC-DC Power Transmission, 28-30 November 2001
Author : Anonim
Publisher : Inst of Engineering & Technology
Release Date : 2001
Category : Technology & Engineering
Total pages :360
GET BOOK

This volume constitutes the conference proceedings of the Seventh International Conference on AC and DC Power Transmission.

Grid Converters for Photovoltaic and Wind Power Systems

Grid Converters for Photovoltaic and Wind Power Systems
Author : Remus Teodorescu,Marco Liserre,Pedro Rodriguez
Publisher : Wiley-IEEE Press
Release Date : 2011-02-21
Category : Technology & Engineering
Total pages :416
GET BOOK

Grid converters are the key player in renewable energy integration. The high penetration of renewable energy systems is calling for new more stringent grid requirements. As a consequence, the grid converters should be able to exhibit advanced functions like: dynamic control of active and reactive power, operation within a wide range of voltage and frequency, voltage ride-through capability, reactive current injection during faults, grid services support. This book explains the topologies, modulation and control of grid converters for both photovoltaic and wind power applications. In addition to power electronics, this book focuses on the specific applications in photovoltaic wind power systems where grid condition is an essential factor. With a review of the most recent grid requirements for photovoltaic and wind power systems, the book discusses these other relevant issues: modern grid inverter topologies for photovoltaic and wind turbines islanding detection methods for photovoltaic systems synchronization techniques based on second order generalized integrators (SOGI) advanced synchronization techniques with robust operation under grid unbalance condition grid filter design and active damping techniques power control under grid fault conditions, considering both positive and negative sequences Grid Converters for Photovoltaic and Wind Power Systems is intended as a coursebook for graduated students with a background in electrical engineering and also for professionals in the evolving renewable energy industry. For people from academia interested in adopting the course, a set of slides is available for download from the website. www.wiley.com/go/grid_converters

Grid Converters for Photovoltaic and Wind Power Systems

Grid Converters for Photovoltaic and Wind Power Systems
Author : Remus Teodorescu,Marco Liserre,Pedro Rodriguez
Publisher : John Wiley & Sons
Release Date : 2011-07-28
Category : Technology & Engineering
Total pages :416
GET BOOK

Grid converters are the key player in renewable energy integration. The high penetration of renewable energy systems is calling for new more stringent grid requirements. As a consequence, the grid converters should be able to exhibit advanced functions like: dynamic control of active and reactive power, operation within a wide range of voltage and frequency, voltage ride-through capability, reactive current injection during faults, grid services support. This book explains the topologies, modulation and control of grid converters for both photovoltaic and wind power applications. In addition to power electronics, this book focuses on the specific applications in photovoltaic wind power systems where grid condition is an essential factor. With a review of the most recent grid requirements for photovoltaic and wind power systems, the book discusses these other relevant issues: modern grid inverter topologies for photovoltaic and wind turbines islanding detection methods for photovoltaic systems synchronization techniques based on second order generalized integrators (SOGI) advanced synchronization techniques with robust operation under grid unbalance condition grid filter design and active damping techniques power control under grid fault conditions, considering both positive and negative sequences Grid Converters for Photovoltaic and Wind Power Systems is intended as a coursebook for graduated students with a background in electrical engineering and also for professionals in the evolving renewable energy industry. For people from academia interested in adopting the course, a set of slides is available for download from the website. www.wiley.com/go/grid_converters

The 8th IEE International Conference on AC-DC Power Transmission (ACDC 2006), 28-31 March 2006, Savoy Place, London, UK

The 8th IEE International Conference on AC-DC Power Transmission (ACDC 2006), 28-31 March 2006, Savoy Place, London, UK
Author : Anonim
Publisher : Inst of Engineering & Technology
Release Date : 2006
Category : Technology & Engineering
Total pages :299
GET BOOK

There have been many developments in ACDC technologies since the last conference which was held 5 years ago. These developments bring benefits to asset managers and system operators. There have been changes in the marketplace, with further de-regulation and the growth of merchant transmission schemes. The wider implementation of renewable technologies is having an increasing impact on network development. New challenges are arising from environmental, regulatory, political and social factors, which impact on the development of transmission networks.

Proceedings of the ... Midwest Symposium on Circuits and Systems

Proceedings of the ... Midwest Symposium on Circuits and Systems
Author : Anonim
Publisher : Unknown
Release Date : 1992
Category : Electric circuits
Total pages :129
GET BOOK

Modern Power Systems

Modern Power Systems
Author : Anonim
Publisher : Unknown
Release Date : 1989
Category : Electronic journals
Total pages :129
GET BOOK

Energy Research Abstracts

Energy Research Abstracts
Author : Anonim
Publisher : Unknown
Release Date : 1990
Category : Power resources
Total pages :129
GET BOOK

Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.

Proceedings of the IEEE International Conference on Industrial Technology (ICIT ...).

Proceedings of the IEEE International Conference on Industrial Technology (ICIT ...).
Author : Anonim
Publisher : Unknown
Release Date : 2004
Category : Industrial electronics
Total pages :129
GET BOOK