Results 261 to 270 of about 3,455 (300)

Self-Excitation and Harmonics in Wind Power Generation

Journal of Solar Energy Engineering, 2005
Traditional wind turbines are commonly equipped with induction generators because they are inexpensive, rugged, and require very little maintenance. Unfortunately, induction generators require reactive power from the grid to operate; capacitor compensation is often used.
Eduard Muljadi, Charles Butterfield, Harold Romanowitz, Robert Yinger   +3 more
openaire   +1 more source

Optimization design of stator harmonic windings in brushless synchronous machine excited with double-harmonic-windings

2017 International Energy and Sustainability Conference (IESC), 2017
Harmonic brushless excitation synchronous machine does not rely on permanent magnetic material, which also can be excited without brush and slip rings. The air-gap magnetic fields are easy to be adjusted. However, the tooth harmonics in 12-slots machine are relatively big.
Fei Yao, Quntao An, Lizhi Sun, Mahesh S. Illindala, Thomas A. Lipo   +4 more
openaire   +1 more source

Analysis on the harmonics and inter-harmonics of a variable speed wind turbine

Journal of Renewable and Sustainable Energy, 2015
Due to the increasing number of wind turbines directly connected to the electric utility grid, harmonics and inter-harmonics of variable speed wind turbines are capturing the attention of electrical power engineers. This paper develops a framework of doubly fed induction generator (DFIG)-based wind turbines for analyzing the harmonics and inter ...
Yanchi Zhang, Da Xie, Jinshou Yu, Haoxiang Chu   +3 more
openaire   +1 more source

Harmonic modelling of offshore wind farms

IEEE PES General Meeting, 2010
The combination of extensive cable networks and wind turbine converters has been identified as a potential cause of resonances. A modelling approach for a doubly fed induction generator and a full power converter fed generator for harmonic penetration studies is developed and discussed.
R King, J B Ekanayake
openaire   +1 more source

Measurement of wind farm harmonic emissions

2008 IEEE Power Electronics Specialists Conference, 2008
In this paper, harmonic voltage and current measurements performed at the Point of Common Coupling of an existing wind farm comprising five variable speed wind turbines are analyzed and their most important characteristics are presented. Important issues under consideration are the variation of harmonic currents with the wind farm output power, the ...
S. Tentzerakis, N. Paraskevopoulou, S. Papathanassiou, P. Papadopoulos   +3 more
openaire   +1 more source

An Investigation of the Harmonic Emissions of Wind Turbines

IEEE Transactions on Energy Conversion, 2007
Harmonic emissions of variable speed wind turbines (WTs) are a well-known issue, but little information that is based on field measurements on actual machines has been published on the subject. In this paper, the harmonic behavior of modern WTs using extensive measurements performed on commercially available machines is discussed.
Sokratis T. Tentzerakis, Stavros A. Papathanassiou   +1 more
openaire   +1 more source

Managing Harmonics in Wind Power Plants Using the Control of Wind Turbines

2020 IEEE Power & Energy Society General Meeting (PESGM), 2020
The integration of wind power in electricity generation introduces challenges on power quality issues. This paper proposes an algorithm to mitigate the harmonic distortion at the point of connection (PoC) of a wind power plant (WPP). Instead of opting to conventional method using passive filters to mitigate harmonics, this method only upgrades the ...
Kucuk, Ibrahim, Thangamani, Theyagarajan, Murkowska, Marta Irena, Souvirta, Mikko, Satheesh, Sharan, Højgaard, Flemming, Liu, Chengxi, Bak, Claus Leth   +7 more
openaire   +3 more sources

Wind farm integration in a harmonic environment

2015 IEEE Electrical Power and Energy Conference (EPEC), 2015
Designing and constructing wind farms free of harmonics remain an ongoing challenge for the power industry. To ensure system stability and asset longevity, locally generated harmonics should be regularly monitored, evaluated and filtered when exceeding industry standard limits.
Michael N. D. Dang, Nafia Al-Mutawaly, Peter Sztur, Mark Coenen   +3 more
openaire   +1 more source

Review of harmonics in offshore wind farms

2013 48th International Universities' Power Engineering Conference (UPEC), 2013
This paper presents a review of harmonics in offshore wind farm systems. The aim is to gather information of mathematical models for harmonic analysis in wind farms and algorithms to configure offshore network interconnections. A thorough literature review is presented that may help to develop a solution in MatLab or LabView for harmonic analysis in ...
Marco Vinicio Chavez-Baez, Olimpo Anaya-Lara, Kwok L. Lo, Jim McDonald   +3 more
openaire   +1 more source

Harmonic Analysis of the Interconnection of Wind Farm

2011
With the large-scale wind farms accessing systems continuously and a wide range of variable speed wind turbines’ application, the harmonic problems caused by the interconnection of wind farms have got more and more attention. This paper analyzes the harmonic mechanism caused by wind farms connected with the grid; based on Dig SILENT / Power Factory ...
Jidong Wang, Xuhao Du, Guodong Li, Guanqing Yang   +3 more
openaire   +1 more source