IEA Wind Technology Collaboration Programme
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
CHAPTER 7 Design and Development of Small Wind Turbines
CHAPTER 7 Design and development of small wind turbines Lawrence Staudt Center for Renewable Energy, Dundalk Institute of Technology, Ireland. For the purposes of this chapter, “small” wind turbines will be defi ned as those with a power rating of 50 kW or less (approximately 15 m rotor diameter). Small electricity-generating wind turbines have been in existence since the early 1900s, having been particularly popular for providing power for dwellings not yet con- nected to national electricity grids. These turbines largely disappeared as rural electrifi cation took place, and have primarily been used for remote power until recently. The oil crisis of the 1970s led to a resurgence in small wind technology, including the new concept of grid-connected small wind technology. There are few small wind turbine manufacturers with a track record spanning more than a decade. This can be attributed to diffi cult market conditions and nascent technol- ogy. However, the technology is becoming more mature, energy prices are rising and public awareness of renewable energy is increasing. There are now many small wind turbine companies around the world who are addressing the growing market for both grid-connected and remote power applications. The design fea- tures of small wind turbines, while similar to large wind turbines, often differ in signifi cant ways. 1 Small wind technology Technological approaches taken for the various components of a small wind turbine will be examined: the rotor, the drivetrain, the electrical systems and the tower. Of course wind turbines must be designed as a system, and so rotor design affects drivetrain design which affects control system design, etc. -
Investigation of Innovative Structuers and Materials of the Towers Used in Wind Turbines
SCHOOL OF SCIENCE AND ENGINEERING INVESTIGATION OF INNOVATIVE STRUCTUERS AND MATERIALS OF THE TOWERS USED IN WIND TURBINES Rawane Abdaoui Suppurvised by : Abderrazzak El Boukili May 3rd / 2018 Table of Contents Table of Figures .......................................................................................................................... 3 Abstract ...................................................................................................................................... 7 Introduction ............................................................................................................................... 8 STEEPLE ANALYSIS .................................................................................................................... 11 Chapter 1: General Overview on Wind Turbines ...................................................................... 13 How is wind created?..................................................................................................................... 13 Types of Turbines based on the site .................................................................................................. 16 Offshore wind farms ...................................................................................................................... 16 Onshore wind farms ...................................................................................................................... 17 Types of Wind Turbines based on formalities .................................................................................. -
Optimizing the Visual Impact of Onshore Wind Farms Upon the Landscapes – Comparing Recent Planning Approaches in China and Germany
Ruhr-Universität Bochum Dissertation Submission to the Ruhr-Universität Bochum, Faculty of Geosciences For the degree of Doctor of natural sciences (Dr. rer. nat) Submitted by: Jinjin Guan. MLA Date of the oral examination: 16.07.2020 Examiners Dr. Thomas Held Prof. Dr. Harald Zepp Prof. Dr. Guotai Yan Prof. Dr. Wolfgang Friederich Prof. Dr. Harro Stolpe Keywords Onshore wind farm planning; landscape; landscape visual impact evaluation; energy transition; landscape visual perception; GIS; Germany; China. I Abstract In this thesis, an interdisciplinary Landscape Visual Impact Evaluation (LVIE) model has been established in order to solve the conflicts between onshore wind energy development and landscape protection. It aims to recognize, analyze, and evaluate the visual impact of onshore wind farms upon landscapes and put forward effective mitigation measures in planning procedures. Based on literature research and expert interviews, wind farm planning regimes, legislation, policies, planning procedures, and permission in Germany and China were compared with each other and evaluated concerning their respective advantages and disadvantages. Relevant theories of landscape evaluation have been researched and integrated into the LVIE model, including the landscape connotation, landscape aesthetics, visual perception, landscape functions, and existing evaluation methods. The evaluation principles, criteria, and quantitative indicators are appropriately organized in this model with a hierarchy structure. The potential factors that may influence the visual impact have been collected and categorized into three dimensions: landscape sensitivity, the visual impact of WTs, and viewer exposure. Detailed sub-indicators are also designed under these three topics for delicate evaluation. Required data are collected from official platforms and databases to ensure the reliability and repeatability of the evaluation process. -
Goldwind Brochure-1.5-Web.Indd
www.goldwindamerica.com E-mail: [email protected] Goldwind USA, Inc. 200 West Madison Street Suite 2800 Chicago, Illinois, USA Tel: +1 312-948-8050 Fax: +1 312-948-8051 PC: 60601 Xinjiang Goldwind Science & Technology Co., Ltd 107 Shanghai Road, Economic & Technological Development Zone, Urumqi, Xinjiang Tel: +86-(0)991-3767999 PMDD WIND TURBINE Fax: +86-(0)991-3762039 PC: 830026 Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. No. 19 Kangding Road, Economic & Technological 1.5MW Development Zone, Beijing (I) Tel: +86-(0)10-87857500 Fax: +86-(0)10-87857529 PC: 100176 No. 8 Boxing 1st Road, Economic & Technological Development Zone, Beijing (II) Tel: +86-(0)10-67511888 Fax: +86-(0)10-67511983 PC: 100176 www.goldwindamerica.com E-mail: [email protected] Goldwind USA, Inc. 200 West Madison Street Suite 2800 Chicago, Illinois, USA Tel: +1 312-948-8050 Fax: +1 312-948-8051 PC: 60601 Xinjiang Goldwind Science & Technology Co., Ltd 107 Shanghai Road, Economic & Technological Development Zone, Urumqi, Xinjiang Tel: +86-(0)991-3767999 PMDD WIND TURBINE Fax: +86-(0)991-3762039 PC: 830026 Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. No. 19 Kangding Road, Economic & Technological 1.5MW Development Zone, Beijing (I) Tel: +86-(0)10-87857500 Fax: +86-(0)10-87857529 PC: 100176 No. 8 Boxing 1st Road, Economic & Technological Development Zone, Beijing (II) Tel: +86-(0)10-67511888 Fax: +86-(0)10-67511983 PC: 100176 GOLDWIND 1.5MW PMDD WIND TURBINE SERIES DYNAMIC POWER CURVE GENERAL TECHNICAL SPECIFICATIONS -
Technological and Operational Aspects That Limit Small Wind Turbines Performance
energies Review Technological and Operational Aspects That Limit Small Wind Turbines Performance José Luis Torres-Madroñero 1 , Joham Alvarez-Montoya 1 , Daniel Restrepo-Montoya 1 , Jorge Mario Tamayo-Avendaño 1 , César Nieto-Londoño 1,2,* and Julián Sierra-Pérez 1 1 Grupo de Investigación en Ingeniería Aeroespacial, Universidad Pontificia Bolivariana, Medellín 050031, Colombia; [email protected] (J.L.T.-M.); [email protected] (J.A.-M.); [email protected] (D.R.-M.); [email protected] (J.M.T.-A.); [email protected] (J.S.-P.) 2 Grupo de Energía y Termodinámica, Universidad Pontificia Bolivariana, Medellín 050031, Colombia * Correspondence: [email protected] Received: 19 October 2020; Accepted: 17 November 2020; Published: 22 November 2020 Abstract: Small Wind Turbines (SWTs) are promissory for distributed generation using renewable energy sources; however, their deployment in a broad sense requires to address topics related to their cost-efficiency. This paper aims to survey recent developments about SWTs holistically, focusing on multidisciplinary aspects such as wind resource assessment, rotor aerodynamics, rotor manufacturing, control systems, and hybrid micro-grid integration. Wind resource produces inputs for the rotor’s aerodynamic design that, in turn, defines a blade shape that needs to be achieved by a manufacturing technique while ensuring structural integrity. A control system may account for the rotor’s aerodynamic performance interacting with an ever-varying wind resource. At the end, the concept of integration with other renewable source is justified, according to the inherent variability of wind generation. Several commercially available SWTs are compared to study how some of the previously mentioned aspects impact performance and Cost of Electricity (CoE). -
Theme 1 | Mini-Symposia WESC 2021
Theme 1 | Mini-Symposia Mini-Symposium: Advances in Lattice Boltzmann Methods in Wind Energy Stefan Ivanell, Henrik Asmuth (Uppsala University) Mini-Symposium: Advances in Lattice Boltzmann Methods in Wind Energy May 25 13:40 - 15:20 CEST Session Chairs: Stefan Ivanell (Uppsala University) (moderators) Henrik Asmuth (Uppsala University) Time Duration Speaker Affiliation Title 13:45 - 14:15 25 + 5 min Manfed Krafczyk TU Braunschweig GPGPU-accelerated Urban Scale Wind Simulations based on Lattice-Boltzmann methods Eastern Switzerland University Investigation of the influence of the inlet boundary conditions on the turbulent flow over 14:15 - 14:35 15 + 5 min Alain Schubiger of Applied Sciences a smooth 3-D hill 14:35 - 14:55 15 + 5 min Henrik Asmuth Uppsala University Lattice Boltzmann Large-eddy Simulation of Neutral Atmospheric Boundary Layers Friedrich-Alexander University A Holistic CPU/GPU Approach for the Actuator Line Model in Lattice Boltzmann 14:55 - 15:15 15 + 5 min Helen Schottenhamml Erlangen Simulations Session briefing: starting from 12:30 CEST (same virtual room) WESC 2021 Theme 1 | Mini-Symposia Mini-Symposium: Array-Array Interactions and Downstream Wake Effects Rebecca J. Barthelmie, Sara C. Pryor (Cornell University), Charlotte Hasager (DTU Wind Energy) Mini-Symposium: Array-Array Interactions and Downstream Wake Effects (I) May 25 15:30 - 17:10 CEST Session Chairs: Sara C. Pryor (Cornell University) (moderators) Charlotte Hasager (DTU Wind Energy) Time Duration Speaker Affiliation Title 15:30 - 15:50 15 + 5 min Jana -
Assessment of Wind Energy Resources for Electricity Generation Using WECS in North-Central Region, Nigeria
Renewable and Sustainable Energy Reviews 15 (2011) 1968–1976 View metadata, citation and similar papers at core.ac.uk brought to you by CORE Contents lists available at ScienceDirect provided by Covenant University Repository Renewable and Sustainable Energy Reviews journal homepage: www.elsevier.com/locate/rser Assessment of wind energy resources for electricity generation using WECS in North-Central region, Nigeria Olayinka S. Ohunakin Mechanical Engineering Department, Covenant University, P.M.B 1023, Ota, Ogun State, Nigeria article info abstract Article history: This paper presents a statistical analysis of wind characteristics of five locations covering the North- Received 1 October 2010 Central (NC) geo-political zone, Nigeria, namely Bida, Minna, Makurdi, Ilorin and Lokoja using Weibull Accepted 4 January 2011 distribution functions on a 36-year (1971–2007) wind speed data at 10 m height collected by the mete- orological stations of NIMET in the region. The monthly, seasonal and annual variations were examined Keywords: while wind speeds at different hub heights were got by extrapolating the 10 m data using the power law. Weibull distribution The results from this investigation showed that all the five sites will only be adequate for non-connected Wind energy conversion systems electrical and mechanical applications with consideration to their respective annual mean wind speeds Mean wind speeds Wind energy of 2.747, 4.289, 4.570, 4.386 and 3.158 m/s and annual average power densities of 16.569, 94.113, 76.399, 2 Nigeria 71.823 and 26.089 W/m for Bida, Minna, Makurdi, Ilorin and Lokoja in that order. -
News Release No. 8/2011 from Vestas Northern Europe
News release No. 8/2011 from Vestas Northern Europe Malmö, 19 October 2011 News release No. 8/2011 Page 1 of 2 Vestas continues expansion in Finland Vestas has received the second order from TuuliWatti Oy for delivery of 8 units of the V112-3.0 MW wind turbine for the Ii-Olhava project. The first order for 6 similar units was announced on 7 June 2011. The new order has a total capacity of 24 MW and the turbines will be installed in Olhava, Finland. Delivery of the turbines is scheduled to be completed by the end of 2012. The contract includes supply, installation and commissioning of the turbines and a 6-year full-scope active output management agreement. “We are very pleased that TuuliWatti Oy has shown confidence in the Vestas product and chooses Vestas as a partner for their wind power plant expansions. This second project in Finland is an important step for us to build a leading position in the Finnish market for renewable energy,” says Klaus Steen Mortensen, President of Vestas Northern Europe. Finland has recently taken steps to enhance the development of renewable energy. A feed-in tariff system for renewable energy was launched earlier this year, and Finland has a renewable energy target to produce 6 TWh from wind power by 2020. This requires a capacity of approx 2,500 MW. “TuuliWatti Oy has proven that they are a frontrunner in developing wind power in Finland and their partnership and trust means a lot to us. We look forward to a continued close cooperation on the coming project. -
Wind Power in Finland up to the Year 2025
ARTICLE IN PRESS Energy Policy 33 (2005) 1930–1947 Wind power in Finland up to the year 2025—‘soft’ scenarios based on expert views Vilja Varhoa,*, Petri Tapiob a Department of Biological and Environmental Sciences, P.O. Box 27, University of Helsinki, Fin-00014 Helsinki, Finland b Finland Futures Research Centre, Korkeavuorenkatu 25 A 6, Fin-00130 Helsinki, Finland Abstract In this article we present a method of constructing ‘soft’ scenarios applied to the wind power development in Finland up to the year 2025. We asked 14 experts to describe probable and preferable futures using a quantitative questionnaire and qualitative interviews. Wind power production grows in all scenarios but there were differences in the order of magnitude of 10. The growth rate of electricity consumption slows down in all scenarios. Qualitative arguments varied even within clusters, with wind power policy emerging as the main dividing factor. The differences revealed diverse values and political objectives, as well as great uncertainties in assumptions about future developments. These influence wind power policy and were also believed to have contributed to the slow development of wind power in Finland. Re-thinking of the Finnish wind power policy is recommended. The ‘soft’ scenario method is considered valuable in finding diverse views, constructing transparent scenarios and assisting energy policy making. r 2004 Elsevier Ltd. All rights reserved. Keywords: Wind power; Scenario; Expert interview 1. Introduction This has inspired Finnish policy makers and Finnish industries that produce components and materials for Wind power made a remarkable entry to the energy the wind turbines. So far, the growth of domestic sector during the 1990s. -
Stochastic Dynamic Response Analysis of a 10 MW Tension Leg Platform Floating Horizontal Axis Wind Turbine
energies Article Stochastic Dynamic Response Analysis of a 10 MW Tension Leg Platform Floating Horizontal Axis Wind Turbine Tao Luo 1,*, De Tian 1, Ruoyu Wang 1 and Caicai Liao 2 1 State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China; [email protected] (D.T.); [email protected] (R.W.) 2 CAS Key Laboratory of Wind Energy Utilization, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China; [email protected] * Correspondence: [email protected]; Tel.: +10-6177-2682 Received: 2 October 2018; Accepted: 23 November 2018; Published: 30 November 2018 Abstract: The dynamic response of floating horizontal axis wind turbines (FHWATs) are affected by the viscous and inertia effects. In free decay motion, viscous drag reduces the amplitude of pitch and roll fluctuation, the quasi-static mooring system overestimates the resonant amplitude values of pitch and roll. In this paper, the quasi-static mooring system is modified by introducing linear damping and quadratic damping. The dynamic response characteristics of the FHAWT modified model of the DTU 10 MW tension leg platform (TLP) were studied. Dynamic response of the blade was mainly caused by wind load, while the wave increased the blade short-term damage equivalent load. The tower base bending moment was affected by inclination of the tower and the misaligned angle bwave between wind and wave. Except the yaw motion, other degrees of freedom motions of the TLP were substantially affected by bwave. Ultimate tension of the mooring system was related to the displacement caused by pitch and roll motions, and standard deviation of the tension was significantly affected by the wave frequency response. -
Offshore Renewables: Offshore
OFFSHORE RENEWABLES: OFFSHORE OFFSHORE AN ACTION AGENDA FOR DEPLOYMENT RENEWABLES An action agenda for deployment OFFSHORE RENEWABLES A CONTRIBUTION TO THE G20 PRESIDENCY An action agenda for deployment A CONTRIBUTION TO THE G20 PRESIDENCY www.irena.org 2021 © IRENA 2021 © IRENA 2021 Unless otherwise stated, material in this publication may be freely used, shared, copied, reproduced, printed and/or stored, provided that appropriate acknowledgement is given of IRENA as the source and copyright holder. Material in this publication that is attributed to third parties may be subject to separate terms of use and restrictions, and appropriate permissions from these third parties may need to be secured before any use of such material. Citation: IRENA (2021), Offshore renewables: An action agenda for deployment, International Renewable Energy Agency, Abu Dhabi. ISBN 978-92-9260-349-6 About IRENA The International Renewable Energy Agency (IRENA) serves as the principal platform for international co-operation, a centre of excellence, a repository of policy, technology, resource and financial knowledge, and a driver of action on the ground to advance the transformation of the global energy system. An intergovernmental organisation established in 2011, IRENA promotes the widespread adoption and sustainable use of all forms of renewable energy, including bioenergy, geothermal, hydropower, ocean, solar and wind energy, in the pursuit of sustainable development, energy access, energy security and low-carbon economic growth and prosperity. www.irena.org Acknowledgements IRENA is grateful for the Italian Ministry of Foreign Affairs and International Cooperation (Directorate-General for Global Affairs, DGMO) contribution that enabled the preparation of this report in the context of the Italian G20 Presidency. -
Master Document Template
Copyright by Krystian Amadeusz Zimowski 2012 The Thesis Committee for Krystian Amadeusz Zimowski Certifies that this is the approved version of the following thesis: Next Generation Wind Energy Harvester to Power Bridge Health Monitoring Systems APPROVED BY SUPERVISING COMMITTEE: Supervisor: Richard H. Crawford Co-supervisor: Kristin L. Wood Next Generation Wind Energy Harvesting to Power Bridge Health Monitoring Systems by Krystian Amadeusz Zimowski, B.S.M.E. Thesis Presented to the Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Master of Science in Engineering The University of Texas at Austin May 2012 Dedication This thesis is first of all dedicated to my parents, who sacrificed everything for me and for my education. Acknowledgements I would like to acknowledge Dr. Kristin Wood, Dr. Richard Crawford, and Dr. Sharon Wood, for allowing me to work on such a fantastic research project and for mentoring me throughout my graduate studies at The University of Texas at Austin. I am grateful that the National Science Foundation and the National Institute for Standards and Technology (NIST) Technology Innovation Program (TIP) provided funds to address the critical issue of bridge health monitoring systems. I would like also extend a personal thank you to Dr. Dan Jensen at the United States Air Force Academy for granting me the funding to work on this project through a National Science Foundation (NSF) grant for improving student learning using finite element learning modules. Finally, I would like to extend a personal thanks to my fellow mechanical engineers with whom I worked on this project: Sumedh Inamdar, Eric Dierks, and Travis McEvoy.