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Stop OpenFAST for Simulink simulation when trim solution has been found. #930

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merged 7 commits into from
Nov 30, 2021
Merged

Stop OpenFAST for Simulink simulation when trim solution has been found. #930

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471b6f3
Simulink: end simulation after trim solution was found
bjonkman May 28, 2021
fc44fa2
fix sfunc error checking
bjonkman May 28, 2021
a698712
Merge remote-tracking branch 'NREL/dev' into b/Simulink_TrimLinear
bjonkman Jun 23, 2021
d9c24f0
Merge remote-tracking branch 'NREL/dev' into b/Simulink_TrimLinear
bjonkman Jul 22, 2021
2526f41
S-Function: don't print blank line at every time step
bjonkman Jul 22, 2021
fb986e2
Add Simulink cache files to gitignore
bjonkman Jul 23, 2021
3cac51f
Merge branch 'dev' into b/Simulink_TrimLinear
bjonkman Nov 29, 2021
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34 changes: 20 additions & 14 deletions glue-codes/simulink/src/FAST_SFunc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -81,20 +81,26 @@ static int nTurbines = 1;
static int
checkError(SimStruct *S){

if (ErrStat >= AbortErrLev){
ssPrintf("\n");
ssSetErrorStatus(S, ErrMsg);
mdlTerminate(S); // terminate on error (in case Simulink doesn't do so itself)
return 1;
}
else if (ErrStat >= ErrID_Warn){
ssPrintf("\n");
ssWarning(S, ErrMsg);
}
else if (ErrStat != ErrID_None){
ssPrintf("\n%s\n", ErrMsg);
}
return 0;
if (ErrStat >= AbortErrLev) {
ssPrintf("\n");
if (ErrStat > ErrID_Fatal) { // in case we've reached a trim solution
ssPrintf("%s\n", ErrMsg);
}
else {
ssSetErrorStatus(S, ErrMsg);
}
mdlTerminate(S); // terminate on error (in case Simulink doesn't do so itself)
return 1;
}
else if (ErrStat >= ErrID_Warn) {
ssPrintf("\n");
ssWarning(S, ErrMsg);
}
else if (ErrStat != ErrID_None) {
ssPrintf("\n");
ssPrintf("%s\n", ErrMsg);
}
return 0;

}

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5 changes: 5 additions & 0 deletions modules/openfast-library/src/FAST_Library.f90
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Expand Up @@ -294,6 +294,11 @@ subroutine FAST_Update(iTurb, NumInputs_c, NumOutputs_c, InputAry, OutputAry, Er
ErrMsg = TRIM(ErrMsg)//NewLine//TRIM(ErrMsg2)
end if

! NOTE: if there is ever more than one turbine, this logic will need to be revisited
IF ( Turbine(iTurb)%m_FAST%Lin%FoundSteady) THEN
ErrStat = ErrID_Fatal + 1 ! it's not really "fatal", but we do want to end prematurely; FAST_SFunc.c will look to see that it's larger than AbortErrLev
ErrMsg = TRIM(ErrMsg)//NewLine//"Ending because steady-state trim solution was successfully found."
END IF

! set the outputs for external code here...
! return y_FAST%ChannelNames
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2 changes: 1 addition & 1 deletion modules/openfast-library/src/FAST_Subs.f90
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Expand Up @@ -6269,7 +6269,7 @@ SUBROUTINE ExitThisProgram( p_FAST, y_FAST, m_FAST, ED, BD, SrvD, AD14, AD, IfW,
ErrorLevel = ErrLevel_in

! for debugging, let's output the meshes and all of their fields
IF ( ErrorLevel >= AbortErrLev .AND. p_FAST%WrVTK > VTK_None) THEN
IF ( ErrorLevel >= AbortErrLev .AND. p_FAST%WrVTK > VTK_None .and. .not. m_FAST%Lin%FoundSteady) THEN
p_FAST%VTK_OutFileRoot = trim(p_FAST%VTK_OutFileRoot)//'.DebugError'
p_FAST%VTK_fields = .true.
CALL WrVTK_AllMeshes(p_FAST, y_FAST, MeshMapData, ED, BD, AD, IfW, OpFM, HD, SD, ExtPtfm, SrvD, MAPp, FEAM, MD, Orca, IceF, IceD)
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