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A horizontal three-blade wind turbine injects 1 MW to the power grid at a wind speed of 15 m/s. If the length of each

A horizontal three-blade wind turbine injects 1 MW to the power grid at a wind speed of 15 m/s. If the length of each blade is 40 m and the low-speed shaft rotates at 30 rpm, calculate the TSR and the efficiency of the overall wind turbine. Consider C = 0.4, the gearbox efficiency 92%, and the back-to-back converter efficiency is 95%. Compare the results when the length of each blade is 30 m.

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