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Author: Markel Zubiaga
Publisher:
Published: 2011
Total Pages:
ISBN-13:
DOWNLOAD EBOOKEvaluation of the Frequency Response of AC Transmission Based Offshore Wind Farms.
Author: Markel Zubiaga
Publisher:
Published: 2011
Total Pages:
ISBN-13: 9789533074672
DOWNLOAD EBOOKAuthor: Markel Zubiaga
Publisher: BoD – Books on Demand
Published: 2012-03-21
Total Pages: 262
ISBN-13: 9535103687
DOWNLOAD EBOOKThis book analyses the key issues of the offshore wind farm's energy transmission and grid integration infrastructure. But, for this purpose, there are not evaluated all the electric configurations. In the present book is deeply evaluated a representative case. This representative case is built starting from three generic characteristics of an offshore wind farm: the rated power, the distance to shore and the average wind speed of the location. Thus, after a brief description of concepts related to wind power and several subsea cable modeling options, an offshore wind farm is modeled and its parameters defined to use as a base case. Upon this base case, several analyses of the key aspects of the connection infrastructure are performed. The first aspect to analyze is the management of the reactive power flowing through the submarine cable. Then, the undesired harmonic amplifications in the offshore wind farms due to the resonances and after this, transient over-voltage problems in the electric infrastructure are characterized. Finally, an offshore wind farm connection infrastructure is proposed in order to achieve the grid code requirements for a specific system operator, but not as a close solution, as a result of a methodology based on analyses and simulations to define the most suitable layout depending on the size and location of each offshore wind farm.
Author: Gastón Orlando Suvire
Publisher: BoD – Books on Demand
Published: 2011-07-28
Total Pages: 346
ISBN-13: 9533074671
DOWNLOAD EBOOKDuring the last two decades, increase in electricity demand and environmental concern resulted in fast growth of power production from renewable sources. Wind power is one of the most efficient alternatives. Due to rapid development of wind turbine technology and increasing size of wind farms, wind power plays a significant part in the power production in some countries. However, fundamental differences exist between conventional thermal, hydro, and nuclear generation and wind power, such as different generation systems and the difficulty in controlling the primary movement of a wind turbine, due to the wind and its random fluctuations. These differences are reflected in the specific interaction of wind turbines with the power system. This book addresses a wide variety of issues regarding the integration of wind farms in power systems. The book contains 14 chapters divided into three parts. The first part outlines aspects related to the impact of the wind power generation on the electric system. In the second part, alternatives to mitigate problems of the wind farm integration are presented. Finally, the third part covers issues of modeling and simulation of wind power system.
Author: Jakob Bærholm Glasdam
Publisher: Springer
Published: 2015-10-26
Total Pages: 219
ISBN-13: 3319264761
DOWNLOAD EBOOKThis book reports on cutting-edge findings regarding harmonic stability assessment for offshore wind power plants (OWPPs). It presents a timely investigation of the harmonic stability interaction between OWPPs on the one hand, and associated control systems in the wind turbines and other power electronic devices in the transmission system on the other. The book particularly focuses on voltage-sourced converter high-voltage direct current (VSC-HVDC) and static compensator (STATCOM) systems. From a practical perspective, the book reports on appropriate models for power electronic devices. It describes how the frequency domain evaluation approach can be assessed by comparing results obtained with the Nyquist stability criterion against the more detailed electromagnetic transient based model realized in the PSCAD/EMTDC simulation program. The book also provides a concise yet complete overview of large OWPPs that incorporate power electronic devices on a broad scale, and highlights selected challenges and opportunities in the context of real-world applications.
Author: Olimpo Anaya-Lara
Publisher: John Wiley & Sons
Published: 2018-05-11
Total Pages: 601
ISBN-13: 1119097797
DOWNLOAD EBOOKA COMPREHENSIVE REFERENCE TO THE MOST RECENT ADVANCEMENTS IN OFFSHORE WIND TECHNOLOGY Offshore Wind Energy Technology offers a reference based on the research material developed by the acclaimed Norwegian Research Centre for Offshore Wind Technology (NOWITECH) and material developed by the expert authors over the last 20 years. This comprehensive text covers critical topics such as wind energy conversion systems technology, control systems, grid connection and system integration, and novel structures including bottom-fixed and floating. The text also reviews the most current operation and maintenance strategies as well as technologies and design tools for novel offshore wind energy concepts. The text contains a wealth of mathematical derivations, tables, graphs, worked examples, and illustrative case studies. Authoritative and accessible, Offshore Wind Energy Technology: Contains coverage of electricity markets for offshore wind energy and then discusses the challenges posed by the cost and limited opportunities Discusses novel offshore wind turbine structures and floaters Features an analysis of the stochastic dynamics of offshore/marine structures Describes the logistics of planning, designing, building, and connecting an offshore wind farm Written for students and professionals in the field, Offshore Wind Energy Technology is a definitive resource that reviews all facets of offshore wind energy technology and grid connection.
Author: Wenping Cao
Publisher: Springer Nature
Published: 2023-03-09
Total Pages: 1010
ISBN-13: 9819905532
DOWNLOAD EBOOKThe conference offers a forum for academic and technical communication for researchers and engineers working in the fields of energy science and technology, electrical systems, and power electronics. It conducts in-depth exchanges and discussions on pertinent subjects like new energy and electrical technology. The book aids scholars and engineers worldwide in understanding the academic development trend and expanding their lines of inquiry by disseminating the research status of cutting-edge technologies and scientific research accomplishments. It also strengthens international academic research, academic topics exchange, and discussion, and encourages the industrialization of academic achievements.
Author: Amirhossein Sajadi
Publisher:
Published: 2016
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKThe wind energy has been known for a very long time. Historians estimate its age as over 3000 years old. The first written evidence indicates that windmills are heritage and history of Persia. Electrical energy from offshore wind is a relatively new source of electrical energy in contrast with conventional hydro and fossil fuel-based generation. Over the last decade, the installed capacity of wind farms has grown significantly across the globe. Regardless of technology used in the wind farm, injecting a significant amount of power into an existing power system has a huge impact on its control, stability, and resiliency. In particular, injection of the power into the transmission system concerns transfer capability, line congestion, reactive power support and synchronism in the grid. In addition, the uncertain and variable nature of wind power introduces more complexity in frequency control, unit commitment, market operation and protection. This research has developed a comprehensive methodology to identify transmission system upgrades that are needed to accommodate offshore wind projects. It also develops a series of techniques to determine operational impacts of offshore wind generation on reliability and resiliency under the steady state and dynamic operations of large-scale power systems including:Steady State Stability related issues in the system including voltage regulation and reactive power availability in the area as well as power transfer capability of the transmission system. Small Signal Stability related issues in the system as a result of variability of the offshore wind power including frequency stability by using frequency response and voltage stability by using frequency domain analysis to identify the dominant voltage modes. Large Signal Stability related issues in the system as a result of operation of variable offshore wind power including rotor angle stability, frequency stability, voltage stability for long term and short term faults. This study used a simulation model of the US Eastern Interconnection as the test system and focused on the integration of a 1000MW offshore wind farm operating in Lake Erie into FirstEnergy/PJM service territory as a case study. The findings of this research provide recommendations on offshore wind integration scenarios, the locations of points of interconnection, wind profile modeling and simulation, and computational methods to quantify performance, along with operating changes and equipment upgrades needed to mitigate system performance issues introduced by an offshore wind project.
Author: Xidong Liang
Publisher: Springer Nature
Published: 2022-04-22
Total Pages: 1396
ISBN-13: 9811918708
DOWNLOAD EBOOKThis book gathers outstanding papers presented at the 16th Annual Conference of China Electrotechnical Society, organized by China Electrotechnical Society (CES), held in Beijing, China, from September 24 to 26, 2021. It covers topics such as electrical technology, power systems, electromagnetic emission technology, and electrical equipment. It introduces the innovative solutions that combine ideas from multiple disciplines. The book is very much helpful and useful for the researchers, engineers, practitioners, research students, and interested readers.
Author: Hossein Ali Mohammadpour
Publisher: Springer Nature
Published: 2022-05-31
Total Pages: 62
ISBN-13: 3031025016
DOWNLOAD EBOOKWind power penetration is rapidly increasing in today's energy generation industry. In particular, the doubly-fed induction generator (DFIG) has become a very popular option in wind farms, due to its cost advantage compared with fully rated converter-based systems. Wind farms are frequently located in remote areas, far from the bulk of electric power users, and require long transmission lines to connect to the grid. Series capacitive compensation of DFIG-based wind farm is an economical way to increase the power transfer capability of the transmission line connecting the wind farm to the grid. For example, a study performed by ABB reveals that increasing the power transfer capability of an existing transmission line from 1300 MW to 2000 MW using series compensation is 90% less expensive than building a new transmission line. However, a factor hindering the extensive use of series capacitive compensation is the potential risk of subsynchronous resonance (SSR). The SSR is a condition where the wind farm exchanges energy with the electric network, to which it is connected, at one or more natural frequencies of the electric or mechanical part of the combined system, comprising the wind farm and the network, and the frequency of the exchanged energy is below the fundamental frequency of the system. This oscillatory phenomenon may cause severe damage in the wind farm, if not prevented. Therefore, this book studies the SSR phenomenon in a capacitive series compensated wind farm. A DFIG-based wind farm, which is connected to a series compensated transmission line, is considered as a case study. The book consists of two main parts: Small-signal modeling of DFIG for SSR analysis: This part presents a step-by-step tutorial on modal analysis of a DFIG-based series compensated wind farm using Matlab/Simulink. The model of the system includes wind turbine aerodynamics, a 6th order induction generator, a 2nd order two-mass shaft system, a 4th order series compensated transmission line, a 4th order rotor-side converter (RSC) controller and a 4th order grid-side converter (GSC) controller, and a 1st order DC-link model. The relevant modes are identified using participation factor analysis. Definition of the SSR in DFIG-based wind farms: This part mainly focuses on the identification and definition of the main types of SSR that occur in DFIG wind farms, namely: (1) induction generator effect (SSIGE), (2) torsional interactions (SSTI), and (3) control interactions (SSCI).
