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Some errors about the addition of dampers to 15MW monopile wind turbines #2220
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Dear @3sdb, It appears your model is numerically unstable, but it is not clear to me why. With What else have you changed in the IEA Wind 15-MW baseline wind turbine atop monopile model relative to the original OpenFAST model provided in its repository: https://github.com/IEAWindTask37/IEA-15-240-RWT/tree/master/OpenFAST/IEA-15-240-RWT-Monopile? Best regards, |
Dear @jjonkman : |
Dear @3sdb, Are you saying that your simulation runs as expected except when you add a nacelle-based TMD that causes your model to go unstable? In our Structural Controller (StC) input file, I see that Best regards, |
Dear @jjonkman , |
Dear @3sdb, In OpenFAST, the center of the yaw bearing is user-specified via ElastoDyn input Best regards, |
Hello@jjonkman , |
Dear @3sdb, The OpenFAST r-test cases with the Structural Controller (StC) submodel of ServoDyn enabled are set up more to test that StC is working as expected rather than as examples of optimal StC configurations. NREL has not provided guidance on how to design TMDs, but the NREL-provided documentation does describe how the StC submodel is implemented in OpenFAST and how to use it: https://openfast.readthedocs.io/en/main/source/user/servodyn-stc/StC_index.html. I'm sure you can find relevant literature on how to design optimal TMDs. Best regards, |
I am getting the following error during the simulation, can you give me some suggestions?
![b1f043b855e02f7bd08f8846fa5edba](https://private-user-images.githubusercontent.com/156734919/331018298-18013b54-8d43-4a6d-9ce2-3e3e023f4f1a.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3MTkyNjgwNDMsIm5iZiI6MTcxOTI2Nzc0MywicGF0aCI6Ii8xNTY3MzQ5MTkvMzMxMDE4Mjk4LTE4MDEzYjU0LThkNDMtNGE2ZC05Y2UyLTNlM2UwMjNmNGYxYS5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjQwNjI0JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI0MDYyNFQyMjIyMjNaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT1mNmIxOGE4NmNlNTM5YTZjMjY1NTlkYzg3M2U5YmQzODdmODllNDQwMDhlZDE5MTU3OTcxZDMxM2YwYzU1MjBjJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCZhY3Rvcl9pZD0wJmtleV9pZD0wJnJlcG9faWQ9MCJ9.3XPBgZ83pCDtCYtevYKngX-xsTmF_31vlmH2R9UCIIA)
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