Wind turbine generator alignment regulations

Tags: Wind Turbine Generator

4 FAQs about Wind turbine generator alignment regulations

Do wind turbines need to be aligned?

Precision alignment is recommended by most wind turbine manufacturers for optimal operation and reliability. Generator efficiency can also be affected by misalignment (angular and offset). The following questions—and answers—will help you to enhance the productivity and longevity of your turbine. What needs to be aligned in a wind turbine?

When should a turbine alignment be performed?

Anytime a gearbox or generator is replaced, an alignment should be performed. Because of the movement of the tower and other dynamic forces, a best practice is to re-check the alignment six months after the initial install and a minimum of every year after. Consult your turbine's maintenance manual for recommendations.

How fast should a wind turbine be aligned?

Check with the turbine manufacturer for specific safety requirements, but generally the brake should be engaged, dead bolts locked, blades pitched at 9:00, and the nacelle up against the wind. Alignment should not be tried in wind speeds ~over 8 m/s. Does tower movement affect alignment measurements? All movement can affect the laser measurements.

Why should a wind turbine shaft be aligned?

Properly aligned shafts are able to spin freely and not induce other unwanted forces to the system. These unwanted forces will damage and/or destroy bearings, seals, and couplings, and eventually the gearbox or generator. Precision alignment is recommended by most wind turbine manufacturers for optimal operation and reliability.

Wind turbine generator alignment standards

IEC 61400-1:2005, Wind turbines -- Part 1: Design requirements; IEC 61400-3, Wind turbines -- Part 3: Design requirements for offshore wind turbines; IEC/TS 61400-13:2001, Wind turbine
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