Minimizing yaw brake noise in wind turbines

By Michelle Froese By Bjarne Havsteen
Senior Project Manager, R&DSvendborg Brakes
Over an 18-month period, Svendborg Brakes modified 25 wind turbines, adding the new grooved brake discs on units from several different OEMs. Zero noise has been reported since the upgrades were completed. (Source: iStock/WSS)
Yaw noise is a significant contributor to the noise produced by wind turbines. It is the result of contact between the yaw brake pads and the disc when nacelle adjustments are made to optimize wind generation. The brakes are released to let the yaw motors turn the nacelle sufficiently into the optimal wind direction, and then reapplied to the hold position.

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