System Efficiency of a Tap Transformer Based Grid Connection Topology Applied on a Direct Driven Generator for Wind Power
Joint Authors
Eriksson, Sandra
Apelfröjd, Senad
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-31
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Results from experiments on a tap transformer based grid connection system for a variable speed vertical axis wind turbine are presented.
The tap transformer based system topology consists of a passive diode rectifier, DC-link, IGBT inverter, LCL-filter, and tap transformer.
Full range variable speed operation is enabled by using the different step-up ratios of a tap transformer.
Simulations using MATLAB/Simulink have been performed in order to study the behavior of the system.
A full experimental set up of the system has been used in the laboratory study, where a clone of the on-site generator was driven by an induction motor and the system was connected to a resistive load to better evaluate the performance.
Furthermore, the system is run and evaluated for realistic wind speeds and variable speed operation.
For a more complete picture of the system performance, a case study using real site Weibull parameters is done, comparing different tap selection options.
The results show high system efficiency at nominal power and an increase in overall power output for full tap operation in comparison with the base case, a standard transformer.
In addition, the loss distribution at different wind speeds is shown, which highlights the dominant losses at low and high wind speeds.
Finally, means for further increasing the overall system efficiency are proposed.
American Psychological Association (APA)
Apelfröjd, Senad& Eriksson, Sandra. 2014. System Efficiency of a Tap Transformer Based Grid Connection Topology Applied on a Direct Driven Generator for Wind Power. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1051015
Modern Language Association (MLA)
Apelfröjd, Senad& Eriksson, Sandra. System Efficiency of a Tap Transformer Based Grid Connection Topology Applied on a Direct Driven Generator for Wind Power. The Scientific World Journal No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1051015
American Medical Association (AMA)
Apelfröjd, Senad& Eriksson, Sandra. System Efficiency of a Tap Transformer Based Grid Connection Topology Applied on a Direct Driven Generator for Wind Power. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1051015
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051015