BEMT in openfast

When trying to carry out a BEMT in openfast is there an option to define the simulation with a V cut in and out and rotational speed before the start of the simulation. This would be similar to the Qblade software if that helps.

Dear @Hayden.Ntungwe,

I’m not fully aware of all of the functionality of QBlade, but parameters such as the cut-in and cut-out wind and rotational speeds are aspects of the controller. While there are a few built-in control options available in the ServoDyn module of OpenFAST, they are all simple, with emphasis placed on options for user-specified control, such as for the well-established reference open-source controller (ROSCO). This is where you would specify such inputs (separate from OpenFAST).

Best regards,

I downloaded all of the clients for ROSCO, but I don’t know how to actually run the simulations. Is it similar to OPENFAST where you just have to type the command within the terminal?

Dear @Hayden.Ntungwe,

I’m not sure I fully understand your question, but you can use the ROSCO toolbox to define the ROSCO input file settings. Once the ROSCO input file is set, you can run OpenFAST simulations with the ROSCO controller enabled, just as you would run OpenFAST with other controllers.

Best regards,

I know this is alot to ask but could I possibly get video of you using ROSCO and running it with OpenFAST?

I’m not aware of such a video tutorial and NREL doesn’t have the resources to just create one.