Environmental Engineering Reference
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Fig. 5.24
Sketch of furling action
by a furling or tilting mechanism, or to provide or passive operated pitching of the
blades. On the electrical side a dump load resistor activated at a speed threshold is
a possible solution. Besides, with PMSM as generators electric braking is possible
feature.
Fig. 5.25
Turbine diameters and maximum speed of commercially available small WES
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