Advanced controller design for wind turbine systems

72 p.

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Main Author: Li, Xuejia
Other Authors: Wang Youyi
Format: Theses and Dissertations
Published: 2011
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Online Access:http://hdl.handle.net/10356/47045
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-470452023-07-04T15:32:45Z Advanced controller design for wind turbine systems Li, Xuejia Wang Youyi School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering 72 p. In the modern life, the high dependence of global economic development on fossil fuels and the concern about the environmental problem have been motivating the increasing attention which is being paid to alternative methods of electricity generation. In the trend to the diversification of the resource market, wind power is the possible sustainable energy resource with good rospect, for it is clean and renewable. But we cannot fail to ignore the problem that wind energy conversion system has been always hampered by the unpredictably intermittent variability of the primary resource. For this reason, wind turbines usually work with low efficiency and have to endure heavy aerodynamic loads, which can seriously deteriorate the power quality. Wind energy conversion system is very challenging for modern industry, especially from the control system viewpoint. Wind turbines inherently exhibit nonlinear and non-minimum phase dynamics, in addition, mathematical models describing accurately their dynamic behavior are always not easy to obtain because of the particular operating conditions. The lack of accurate models must be countered by robust control strategies capable of securing stability and some performance features despite model uncertainties. The control problems are even more hallenging when turbines are able to operate at variable speed. Anyway, such type of turbine can be only best used through correlative multivariate controllers. More lately, people are more encouraged to the use of the electronic converters and mechanical actuators by the greater penetration of wind energy into the utility networks of leading states and the increasing size of such type of turbine. Static converters used as an interface to the electric grid enable variable-speed operation. In this paper, there should be a model of small wind turbine, and we can see from the detailed survey that the horizontal furling method is the most commonly used or small wind turbine in industry. Furling is used to extract the maximum power from wind through tip-speed-ratio control, so in this paper by using fuzzy controller we can accomplish that goal from controlling the turbine rotor speed, and by estimating the simulation results to conclude the advantages of fuzzy control methods. Master of Science (Power Engineering) 2011-12-27T05:57:27Z 2011-12-27T05:57:27Z 2009 2009 Thesis http://hdl.handle.net/10356/47045 Nanyang Technological University application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
topic DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering
Li, Xuejia
Advanced controller design for wind turbine systems
description 72 p.
author2 Wang Youyi
author_facet Wang Youyi
Li, Xuejia
format Theses and Dissertations
author Li, Xuejia
author_sort Li, Xuejia
title Advanced controller design for wind turbine systems
title_short Advanced controller design for wind turbine systems
title_full Advanced controller design for wind turbine systems
title_fullStr Advanced controller design for wind turbine systems
title_full_unstemmed Advanced controller design for wind turbine systems
title_sort advanced controller design for wind turbine systems
publishDate 2011
url http://hdl.handle.net/10356/47045
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