Replies: 7 comments 8 replies
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Dear @jsalesphi, When enabling the super controller, you must also use an updated individual controller that is compatible with the super controller. This is provided in the DISCON_SC.f90 / Best regards, |
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Dear @jjonkman , I was not using it previously, but even after replacing with the compatible individual controller, the problem remains, showing the same access violation message. I replaced the files: ---------------------- BLADED INTERFACE ---------------------------------------- [used only with Bladed Interface] ---------------------- BLADED INTERFACE ---------------------------------------- [used only with Bladed Interface] |
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Dear @jsalesphi, Do you get the same access violation error when using the precompiled FAST.Farm executable and DLLs for Windows provided by NREL from: https://github.com/OpenFAST/openfast/releases? Best regards, |
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Dear @jjonkman , Yes, even using the executable and DLLs from https://github.com/OpenFAST/openfast/releases the access violation message remains. Best regards, |
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Dear @jsalesphi Are you use the sample super controller (sc_dll) from my post dated March 18, 2021 in the following forum topic: https://forums.nrel.gov/t/fast-farm/1887 or where did you obtain the super controller? Best regards, |
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Dear @jjonkman I'm using the same one you posted on the forum. |
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Dear @jsalesphi, I was able to follow your process and run the example without error using the precompiled Windows binary executable of FAST.Farm (https://github.com/OpenFAST/openfast/releases/download/v3.4.1/FAST.Farm_x64.exe) and the precompiled Windows binary DLL of DISCON_SC (https://github.com/OpenFAST/openfast/releases/download/v3.4.1/Discon_SC.dll) and my own Visual Studio compile of SC_DLL.dll. Perhaps it is your SC_DLL.dll file that is causing the issue? You can find my SC_DLL.dll file here: https://drive.google.com/file/d/1nYYJhZzQzEa1q788Cpe_7wPUZTQfwaDj/view?usp=share_link. Does that work for you? Best regards, |
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Dear @jjonkman Even making all the replacements with the files you sent me, the violation message still appears. |
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Dear @jjonkman, I resumed the attempts and using your SC_DLL.dll compilation I finally got it to run correctly. Thank you very much for your help, it will be fundamental for the progress of my research. Best regards. |
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Dear @jjonkman, How to use to_sc in multiple wind turbines to send parameters to the supercontroller? could you give me some example?thank you! Best regards. |
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Dear @clun1, As mentioned above, a sample super controller for FAST.Farm is provided in my post dated March 18, 2021 in the following topic on our forum: https://forums.nrel.gov/t/fast-farm/1887. All the super controller example does is send distinct sinusoidal yaw rates to the individual wind turbine DISCON controllers (each wind turbine has a different yaw rate). The DISCON controllers, in turn, send the yaw rate commands to OpenFAST. The DISCON controller also sends the generator torque of each wind turbine to the super controller, but the super controller does not make use of this data. You should be able to execute this super controller example in any FAST.Farm simulation. Best regards, |
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Hello,@jjonkman https://github.com/OpenFAST/openfast/issues/2499, As mentioned earlier, I was able to create a 2.2 MW stand-alone model in OpenFAST (so far, the run has not detected an error) . And I use FAST. Farm to simulate a Wind Farm consisting of four 2.2 MW WTs. I used FAST. Farm's |
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Dear @1codecopyer, If I understand correctly, you took DISCON_SC.dll from the OpenFAST v3.5.3 release and you took SC_DLL.dll from my Google drive (linked above); is that correct? My guess is the issue is that you specified the name / path to the super controller in the FAST.Farm input file ( That said, once you resolve this issue, please note that SC_DLL.dll is only a simple example that you'll like to need to change and recompile to make use of. Best regards, |
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Hello, @jjonkman |
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Dear @1codecopyer, Wind farm controls are often implemented by defining a table of yaw offsets as a function of conditions (e.g., wind speed and wind direction) derived from FLORIS such that the wind farm super controller can use a table look-up to derive the optimal yaw angles as a function of conditions. Ideally, NREL would develop a reference open-source super controller, similar to ROSCO for individual wind turbine controller, but focused on farm-level super control approaches. However, NREL has not yet released such a reference open-source wind farm super controller. So currently, you'll have to implement your own logic for your own purposes, using the example super controller as a template. That said, NREL has been developing the Wind-Hybrid-Open-Controller (WHOC) that contains standard wind farm control approaches, including wake-steering, spatial-averaged consensus control, and farm level power tracking (https://github.com/nrel/wind-hybrid-open-controller). While WHOC has not yet been interfaced to FAST.Farm, that is the plan for the future. Best regards, |
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I'm trying to run FAST.Farm using the supercontroller, but it always gives me the same result below:
FAST.Farm
Copyright (C) 2023 National Renewable Energy Laboratory
Copyright (C) 2023 Envision Energy USA LTD
This program is licensed under Apache License Version 2.0 and comes with ABSOLUTELY NO WARRANTY.
See the "LICENSE" file distributed with this software for details.
FAST.Farm-Unversioned from 1870408
Compile Info:
Execution Info:
Heading of the FAST.Farm input file:
FAST.Farm input file, using two turbines separated by 3D downstream and an offset of 30m, with
a turbulent inflow given by one turbsim box
Running AWAE.
Running InflowWind.
Reading a 101x35 grid (1000 m wide, 5 m to 345 m above ground) with a characteristic wind
speed of 9.243 m/s. This full-field file was generated by TurbSim (from
OpenFAST-v3.0.0-98-g7bde6b54) on 14-Sep-2021 at 11:37:08.
Processed 2000 time steps of 10-Hz full-field data (period of 200 seconds).
forrtl: severe (157): Program Exception - access violation
Image PC Routine Line Source
Maybe I'm not doing the right steps to run correctly.
1-Initially I compile the .sln files from the \vs-build directory.
2-After that, I update the useSC flag of the FAST.Farm.fstf file to "True" which is found in the path \openfast-3.4.1\reg_tests\r-test\glue-codes\fast-farm\TSinflow.
3-I add the SC_DLL.dll file path in SC_FileName.
4-Finally, I update YCMode to number 5 in NRELOffshrBsline5MW_Onshore_ServoDyn_WT1.dat and NRELOffshrBsline5MW_Onshore_ServoDyn_WT2.dat.
After these changes to the input files, start FAST.Farm at the prompt as follows
C:\openfast-3.4.1\openfast-3.4.1\build\bin>FAST.Farm_x64_Debug.exe C:\openfast-3.4.1\openfast-3.4.1\reg_tests\r-test\glue-codes\fast-farm \TSinflow\FAST.Farm.fstf
Am I doing something incorrect? Or are there additional steps that I'm not doing?
I'm very grateful if anyone who has managed to use the supercontroller properly can help me, because I've been doing this for a long time without success.
Note: Without the supercontroller FAST.Farm runs perfectly.
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