Gearbox model and Turbine Model

Wind & Water Computer-Aided Engineering Software Tools
1

Dear all,

Is there anyone have tried to build or find information about the gearbox model for NREL 5MW wind turbine? Right now the gearbox is only a ratio of 97.2 without dynamics.

Does anyone have a wind turbine model which is close to 750 kw? I checked the “CerTest” fold, but I didn’t find something close.

I appreciate any useful information and concern.
Thanks,

Zhichao Yu
Kansas State University
8/23/13

2

Dear Zhichao,

The details of the drivetrain/gearbox (shafts, bearings, gears, etc.) of the NREL 5-MW turbine have never been specified. Some of the few details regarding the drivetrain/gearbox that have been defined are:

*Gearbox ratio (just FYI: The gearbox ratio is 97:1, not 97.2:1)
*Torsional stiffness
*Generator and hub inertias
*Location of main bearing relative to hub

You can find all of these in the NREL 5-MW specifications report. I don’t believe any of the references from which the NREL 5-MW turbine was based have the details I suspect you are seeking either.

NREL does not have 750-kW turbine FAST model available for download. I know that the WindPACT design studies considered a 750-kW turbine (scaled from the 1.5-MW turbine), but I don’t have a FAST model of this turbine. With a bit of work, you could probably create your own using the available information from the WindPACT studies. Also, our CART2 and CART3 FAST models are for (2- and 3-bladed) 600-kW turbines, but I don’t believe these are available to the general public.

Best regards,

3

Thank you for the useful information. I know the directions I could go now.

Zhichao

4

Dear Dr. Jonkman,

As you suggested, I am reading the “WindPACT Turbine DesignScaling Studies”. And I know that the WindPACT 1.5 MW turbine(Test 11) is available in “Certest”.
Do you have any contact who could possibly has the 750kw model?

Thank you very much.

Zhichao Yu
8/31/13

5

Dear Zhichao,

Unfortunately, both authors of the WindPACT rotor design study have since retired. I’m not sure where you can find a FAST model of the WindPACT 750-kW turbine. Even if you could, I’m sure the model would be for a very old version of FAST, which would not be compatible with the latest release. I suspect it would be easier to create your own FAST model from the available information in the WindPACT reports.

Best regards,

6

Thanks a lot, Dr. Jonkman. I will do the work.

Best,

Zhichao Yu
Kansas State University