Wind turbine generator alignment standards

IEC 61400 is a set of design requirements made to ensure that wind turbines are appropriately engineered against damage from hazards within the planned lifetime. The standard concerns most aspects of the turbine life from site conditions before construction, to turbine components being tested,assemb
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IEC 61400-4:2012 (en), Wind turbines — Part 4: Design

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

Determination of optimal wind turbine alignment into the

ters and one wind vane) to detect an alignment change of the wind direction measurement device during operation. Re-sults and discussion of a demonstration case with a test wind turbine

Precision alignment in wind turbines

Of all the mechanical maintenance problems in wind turbines, shaft alignments are probably easiest to understand. The high-speed shaft between a gearbox and generator is a critical point of failure. Their

Easy-Laser Shaft Alignment Tools Wind Power

Easy-Laser has different systems for different turbine-generator sets ups. Some of our more popular systems is our XT440 and XT660 shaft alignment tools. Using these alignment tools along with some additional laser alignment

Determination of optimal wind turbine alignment into

Upwind horizontal axis wind turbines need to be aligned with the main wind direction to maximize energy yield. This paper presents new methods to improve turbine alignment and detect changes during operational lifetime with standard

IEC 61400

OverviewPurpose and functionHarmonizationWind Turbine Generator (WTG) classesList of IEC 61400 partsSee alsoExternal links

IEC 61400 is a set of design requirements made to ensure that wind turbines are appropriately engineered against damage from hazards within the planned lifetime. The standard concerns most aspects of the turbine life from site conditions before construction, to turbine components being tested, assembled and operated. Wind turbines are capital intensive, and are usually purchased before they are being erected and

Determination of optimal wind turbine alignment into the wind

Abstract. Upwind horizontal axis wind turbines need to be aligned with the main wind direction to maximize energy yield. Attempts have been made to improve the yaw alignment with

About Wind turbine generator alignment standards

About Wind turbine generator alignment standards

IEC 61400 is a set of design requirements made to ensure that wind turbines are appropriately engineered against damage from hazards within the planned lifetime. The standard concerns most aspects of the turbine life from site conditions before construction, to turbine components being tested,assembled and operated. Wind turbines are capital intensive, and are usually purchased before they are being erected and

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6 FAQs about [Wind turbine generator alignment standards]

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?

How to detect a change in the alignment of Tur-Bines?

Current methods to detect a change in the alignment of tur-bines are based on wind direction in situ comparison in case of redundancy of the device on the nacelle or by compar-ing wind direction measurements nearby (e.g., other turbines, met masts or lidars). The absolute wind directions of one or more wind vanes in the neighborhood are compared.

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.

Do upwind horizontal axis wind turbines need to be aligned?

Upwind horizontal axis wind turbines need to be aligned with the main wind direction to maximize energy yield. Attempts have been made to improve the yaw alignment with advanced measurement equipment but most of these techniques introduce additional costs and rely on alignment tolerances with the rotor axis or the true north.

How long does it take to align a wind turbine?

The first turbine was aligned early in the morning in moderate wind speeds of approx. 2-5 m/s, the alignment went smoothly and we completed the alignment in about 45 minutes with excellent alignment results. The second turbine proved to be challenging. After lunch, the wind had picked up a little but was still acceptable.

How do you determine the best turbine alignment?

The determination of the best turbine alignment, as described in the previous section, works only with a wind speed mea-surement which is not influenced by the yaw error itself. Figure 6. Example of the determination of the best operational alignment.

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