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Wind Power for the World
book

Wind Power for the World

by Preben Maegaard, Anna Krenz, Wolfgang Palz
June 2013
Beginner content levelBeginner
676 pages
20h 39m
English
CRC Press
Content preview from Wind Power for the World
13.1  Background
Almost all wind turbines in Denmark are producing electricity.
Electricity produced by an asynchronous generator is sent to
the public grid at 50 Hz with the related speed of rotation. The
windmill is, thereby, locked by the electricity grid. With constant
rotation speed, the blades will stall with increasing wind speed,
         
on wind speed, the blade tip speed will remain constant. Average
tip speed of older windmills is about 40 m/s and with increasing
size of wind turbines the tip speed increases to about 70 ...
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Publisher Resources

ISBN: 9789814364935