Low Voltage Ride Through Enhancement of Grid Connected Wind Farms
Low Voltage Ride Through Enhancement of Grid Connected Wind Farms

Author: Kenneth Eloghene Okedu

Publisher: LAP Lambert Academic Publishing

Published: 2012-03

Total Pages: 220

ISBN-13: 9783848444960

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The fast growth of wind generation has led to concern about the effect of wind power on the transient stability of the electric grid. New studies must be performed in order to evaluate the behaviour of the wind farms after severe faults and improve the design of the wind farms in an efficient and economical way. Under such circumstances, the most demanding requisite for wind farm is the Fault Ride-Through (FRT) capability. Wind farms connected to high voltage transmission system must stay connected when a voltage dip occurs in the grid, otherwise, the sudden disconnection of great amount of wind power may contribute to the voltage dip, with terrible consequences. Therefore, the dynamic and transient analyses of wind generators are necessary. This book proposes some methods with suitable control strategies for wind power application that helps wind farms to be connected during grid disturbances, achieving the grid code provisions in both steady and transient conditions. The results in this book can be significant in understanding the transient stability phenomena of fixed and variable speed wind turbines and also in designing of wind farms based on transient stability requirements.

Stability Augmentation of a Grid-connected Wind Farm
Stability Augmentation of a Grid-connected Wind Farm

Author: S. M. Muyeen

Publisher: Springer Science & Business Media

Published: 2008-09-25

Total Pages: 259

ISBN-13: 1848003161

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“Stability Augmentation of a Grid-connected Wind Farm” introduces a comprehensive approach to stabilizing the power output from wind farms, covering both fixed and variable speed wind turbine generator systems. The book presents the different tools suitable for application in wind farms, together with modeling and control strategies. The book reports on output power and terminal voltage fluctuation minimization, using the integration of energy storage systems with power electronic converters. Transient stability enhancement of the power systems is also discussed. “Stability Augmentation of a Grid-connected Wind Farm” provides advanced tools with detailed modeling and controller design, including extensive simulation results.

Modeling and Modern Control of Wind Power
Modeling and Modern Control of Wind Power

Author: Qiuwei Wu

Publisher: John Wiley & Sons

Published: 2017-12-18

Total Pages: 373

ISBN-13: 1119236398

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An essential reference to the modeling techniques of wind turbine systems for the application of advanced control methods This book covers the modeling of wind power and application of modern control methods to the wind power control—specifically the models of type 3 and type 4 wind turbines. The modeling aspects will help readers to streamline the wind turbine and wind power plant modeling, and reduce the burden of power system simulations to investigate the impact of wind power on power systems. The use of modern control methods will help technology development, especially from the perspective of manufactures. Chapter coverage includes: status of wind power development, grid code requirements for wind power integration; modeling and control of doubly fed induction generator (DFIG) wind turbine generator (WTG); optimal control strategy for load reduction of full scale converter (FSC) WTG; clustering based WTG model linearization; adaptive control of wind turbines for maximum power point tracking (MPPT); distributed model predictive active power control of wind power plants and energy storage systems; model predictive voltage control of wind power plants; control of wind power plant clusters; and fault ride-through capability enhancement of VSC HVDC connected offshore wind power plants. Modeling and Modern Control of Wind Power also features tables, illustrations, case studies, and an appendix showing a selection of typical test systems and the code of adaptive and distributed model predictive control. Analyzes the developments in control methods for wind turbines (focusing on type 3 and type 4 wind turbines) Provides an overview of the latest changes in grid code requirements for wind power integration Reviews the operation characteristics of the FSC and DFIG WTG Presents production efficiency improvement of WTG under uncertainties and disturbances with adaptive control Deals with model predictive active and reactive power control of wind power plants Describes enhanced control of VSC HVDC connected offshore wind power plants Modeling and Modern Control of Wind Power is ideal for PhD students and researchers studying the field, but is also highly beneficial to engineers and transmission system operators (TSOs), wind turbine manufacturers, and consulting companies.

LVRT Capacity Enhancement of DFIG Based Wind Farms by Controller Based Auxiliary Devices
LVRT Capacity Enhancement of DFIG Based Wind Farms by Controller Based Auxiliary Devices

Author: Gilmanur Rashid

Publisher:

Published: 2016

Total Pages:

ISBN-13:

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Wind energy is one of the most prominent sources of renewable energy. However, subjected to the high penetration of wind energy into existing power grids, stability and smooth operation of electric power system is at stake due to the vulnerability of the wind farms to the grid faults. To address the situation, energy regulatory bodies and electricity transmission system operators have imposed grid codes to ensure overall system stability and steady operations. The most challenging grid code is the low voltage ride through (LVRT) which requires the wind farms to stay connected and support the grid during fault. Based on this background, in order to enhance the LVRT capability of the doubly fed induction generator (DFIG) based onshore wind farms, controller based auxiliary devices, such as the bridge type fault current limiter (BFCL) and parallel resonance fault current limiter (PRFCL) have been proposed in this dissertation. From the Matlab/Simulink based simulations performed on various test systems under fault conditions, it was found that the BFCL and PRFCL are very effective devices in enhancing the LVRT capability of the DFIG based wind farms. Moreover, both devices outperform the conventional series dynamic braking resistor (SDBR) method. With a view to augmenting the LVRT performance much more, nonlinear equation governed controller and fuzzy logic based controller are designed and applied to the modified BFCL (MBFCL) and PRFCL, respectively. From the simulation results, it was found that these nonlinear controllers make the fault current limiters adaptive and responding to the power system dynamics and thus provide much better performance in LVRT capacity augmentation. Furthermore, maintaining the LVRT capability is also challenging for the DFIG based offshore wind farms (OWFs). A DC chopper is a popular choice for the LVRT capacity enhancement of the OWFs. A metaheuristic algorithm, such as a particle swarm optimization (PSO) technique is proposed to design a controller for the DC chopper resistor. Simulation results reveal that the PSO controller based DC chopper is more effective than the conventional DC chopper for the LVRT capacity improvement of DFIG based OWFs.

Wind Energy Conversion Systems
Wind Energy Conversion Systems

Author: S.M. Muyeen

Publisher: Springer Science & Business Media

Published: 2012-01-04

Total Pages: 532

ISBN-13: 1447122003

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This exploration of the technical progress of wind energy conversion systems also examines potential future trends and includes recently developed systems such as those for multi-converter operation of variable-speed wind generators and lightning protection.

Wind Power in Power Systems
Wind Power in Power Systems

Author: Thomas Ackermann

Publisher: John Wiley & Sons

Published: 2012-04-23

Total Pages: 1132

ISBN-13: 111994208X

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The second edition of the highly acclaimed Wind Power in Power Systems has been thoroughly revised and expanded to reflect the latest challenges associated with increasing wind power penetration levels. Since its first release, practical experiences with high wind power penetration levels have significantly increased. This book presents an overview of the lessons learned in integrating wind power into power systems and provides an outlook of the relevant issues and solutions to allow even higher wind power penetration levels. This includes the development of standard wind turbine simulation models. This extensive update has 23 brand new chapters in cutting-edge areas including offshore wind farms and storage options, performance validation and certification for grid codes, and the provision of reactive power and voltage control from wind power plants. Key features: Offers an international perspective on integrating a high penetration of wind power into the power system, from basic network interconnection to industry deregulation; Outlines the methodology and results of European and North American large-scale grid integration studies; Extensive practical experience from wind power and power system experts and transmission systems operators in Germany, Denmark, Spain, UK, Ireland, USA, China and New Zealand; Presents various wind turbine designs from the electrical perspective and models for their simulation, and discusses industry standards and world-wide grid codes, along with power quality issues; Considers concepts to increase penetration of wind power in power systems, from wind turbine, power plant and power system redesign to smart grid and storage solutions. Carefully edited for a highly coherent structure, this work remains an essential reference for power system engineers, transmission and distribution network operator and planner, wind turbine designers, wind project developers and wind energy consultants dealing with the integration of wind power into the distribution or transmission network. Up-to-date and comprehensive, it is also useful for graduate students, researchers, regulation authorities, and policy makers who work in the area of wind power and need to understand the relevant power system integration issues.

Proceedings of International Conference on Artificial Intelligence, Smart Grid and Smart City Applications
Proceedings of International Conference on Artificial Intelligence, Smart Grid and Smart City Applications

Author: L. Ashok Kumar

Publisher: Springer Nature

Published: 2020-03-12

Total Pages: 943

ISBN-13: 3030240517

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Due to the complexity, and heterogeneity of the smart grid and the high volume of information to be processed, artificial intelligence techniques and computational intelligence appear to be some of the enabling technologies for its future development and success. The theme of the book is “Making pathway for the grid of future” with the emphasis on trends in Smart Grid, renewable interconnection issues, planning-operation-control and reliability of grid, real time monitoring and protection, market, distributed generation and power distribution issues, power electronics applications, computer-IT and signal processing applications, power apparatus, power engineering education and industry-institute collaboration. The primary objective of the book is to review the current state of the art of the most relevant artificial intelligence techniques applied to the different issues that arise in the smart grid development.

Sustainable Power Systems
Sustainable Power Systems

Author: Nava Raj Karki

Publisher: Springer

Published: 2017-01-10

Total Pages: 186

ISBN-13: 9811022305

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This book deals with quantifying and analyzing the risks associated with sustainable energy technology growth in electric power systems, and developing appropriate models and methodologies to mitigate the risks and improve the overall system performance. The rapid increase in the installation of renewable energy sources in electric power systems has given rise to a wide range of problems related to planning and operation of power systems to maintain quality, stability, reliability and efficiency. Additionally, there is a growing global environmental concern regarding increasing emissions from the electric power generation required to meet rising energy needs and support sustainable and inclusive development. The phenomenon of low voltage ride through (LVRT), common to wind energy systems, is discussed, and ways to tackle the same are proposed in the first chapter. Subsequent chapters propose methods of optimizing a sustainable and smart microgrid, and supplying electricity to remote areas of a developing country with no immediate possibility of national grid extension. The economic benefit and technical challenges of forming localized minigrid are also discussed. The book proposes a method for reliability assessment of a power grid with sustainable power transportation system. The issue of weak link in power system is very important as it will provide the system operators and planners to take necessary measures to strengthen the system. An approach to determine the weak parts of the system and its unreliability is proposed. With increasing installation of HVDC power transmission and development of efficient and low cost power electronic devices, the DC microgrids are becoming a common phenomenon. Their existence together with AC Grids result in Hybrid AC/DC Microgrids, which are discussed in this book. It further presents a method for reliability evaluation of a distribution system with network reconfiguration in the presence of distributed generation. The important problems in sustainable energy growth, and their potential solutions discussed and presented in the book should be of great interest to engineers, policy makers, researchers and academics in the area of electric power engineering.

Wind Energy Generation: Modelling and Control
Wind Energy Generation: Modelling and Control

Author: Olimpo Anaya-Lara

Publisher: John Wiley & Sons

Published: 2011-08-24

Total Pages: 222

ISBN-13: 1119964202

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WIND ENERGY GENERATION WIND ENERGY GENERATION MODELLING AND CONTROL With increasing concern over climate change and the security of energy supplies, wind power is emerging as an important source of electrical energy throughout the world. Modern wind turbines use advanced power electronics to provide efficient generator control and to ensure compatible operation with the power system. Wind Energy Generation describes the fundamental principles and modelling of the electrical generator and power electronic systems used in large wind turbines. It also discusses how they interact with the power system and the influence of wind turbines on power system operation and stability. Key features: Includes a comprehensive account of power electronic equipment used in wind turbines and for their grid connection. Describes enabling technologies which facilitate the connection of large-scale onshore and offshore wind farms. Provides detailed modelling and control of wind turbine systems. Shows a number of simulations and case studies which explain the dynamic interaction between wind power and conventional generation.