Theoretical study on synchronization phenomena of wind turbines in a wind farm

Katayama, Norihide; Takata, Go; Miyake, Masatoshi; Nanahara, Toshiya
April 2006
Electrical Engineering in Japan;Apr2006, Vol. 155 Issue 1, p9
Academic Journal
This paper discusses the synchronization phenomena of wind turbines in a wind farm. The phenomena illustrate the situation where a blade revolution of a wind turbine is pulled into phase with that of the other turbines in a wind farm. If blades of many turbines simultaneously pass in front of their towers, output power fluctuations of the turbines due to tower shadow effects also become synchronized. This causes voltage fluctuation to increase and may give rise to voltage flicker problems. The purpose of this paper is to examine the phenomena theoretically. Obtaining a differential equation that describes the phenomena with output power, voltage, and slip fluctuations of a wind turbine, we examine dependence of the phenomena on the related parameters. We also prove the validity of the equation through simulation analyses. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 155(1): 9–18, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20201


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