抄録
The first trial test for applying plasma actuation technology on a
1.75 MW field rotor was carried out. Specially developed plasma
electrodes of 8 m in length were installed on the surface of the
leading edge of each blade. An increase in turbine rotational speed
has been identified for the plasma-on cases compared with the
plasma-off cases for the same wind speed. Also, histogram of inlet
wind speed showed a trend that inlet wind speed was shifted to
higher speed region for the plasma-on case compared with the
plasma-off case. The mechanism of plasma actuation on this behaviour
was examined in qualitatively using CFD analysis of model
turbine. Consequently, an averaged power increase of 4.9 % was
achieved in the test period. Possibility of increase in wind turbine
power even in a commercial scale large turbine has been proved by
leading-edge flow separation control using the plasma actuation
technology.
