there's a question that has been annoying me for a while ,consider the follwoing (power,rotor speed) diagram for different wind speeds
at some wind speed(6m/s for example)how could a turbine running fast(15rpm) produce less energy than a turbine running slower(12rpm)?
and at some constant rotor speed(say 15rpm) ,if the wind speed is 7m/s the turbine would produce more power than 6m/s how is that possible?
i mean if they are both connected to the same gear box and generator shouldn't the one moving faster make the generator run faster hence produce more energy?
and if the rotor speed is constant shouldn't the turbines produce the same energy even at different wind speeds?
i know that the peak is caused by betz law,but my question isn't about that,its more of a mechanical question i think