ServoDyn - Measured Electrical Power signal not being sent to Bladed-style DLL

[Jason.Jonkman]

Dear René,

Bonnie Jonkman of Envision Energy recently reported to me that she found a minor bug in the FAST driver/glue code that resulted in incorrect values of the generator torque and electrical power being sent from ServoDyn to Bladed-style DLLs. While she is implementing a more thorough clean-up, she told me that a simple fix is to change one line in FAST_Solver.f90/SolveOption2 i.e. change the line:

CALL SrvD_InputSolve( p_FAST, m_FAST, SrvD%Input(1), ED%Output(1), IfW%y, OpFM%y, SC%y, BD%y, MeshMapData, ErrStat2, ErrMsg2, SrvD%y_prev )

to

CALL SrvD_InputSolve( p_FAST, m_FAST, SrvD%Input(1), ED%Output(1), IfW%y, OpFM%y, SC%y, BD%y, MeshMapData, ErrStat2, ErrMsg2, SrvD%y )

and recompile FAST. Does that resolve your problem?

We’ll get this fixed in a future release of FAST.

Best regards,