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Linking Simulink to Bladed

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Gerrit on 11 Oct 2011
Answered: Ivo Houtzager on 7 Jul 2020
I have a wind turbine (WT) model in the Bladed package (v3.85). I need to link a controller, which is developed in Simulink (R2007b or newer), to this Bladed WT model. There seem to be two possible ways of doing this:
1. Generate C code from Simulink, and modify or 'wrap' that to create a DLL file, which can then be called from the Bladed program. This would (appear to) require Simulink Coder to generate the C code.
2. Write a C-based DLL that links Bladed and Simulink in co-simulation.
Does anyone have any experience with either form of link between Simulink and Bladed, and any recommendations about what the best (only?) way is? Option 1 seems the usual recommended way (by Bladed), but from what I have heard, C code generated by SL Coder still needs quite some manual modification before it can be used to create the DLL.
If you know of any commercial tools that perform option 1 and/or 2, it would help to have some (range of) prices.

Accepted Answer

Kaustubha Govind
Kaustubha Govind on 11 Oct 2011
I don't have experience with Bladed, but I do agree that option#1 is more straight-forward and likely to cause fewer issues (like worries about synchronizing the two softwares in case of option#2). It's fairly straightforward to create a DLL from a Simulink model if you have a license for Embedded Coder (formerly, Real-Time Workshop Embedded Coder): Generating a Shared Library Version of Your Model Code
Kaustubha Govind
Kaustubha Govind on 17 Oct 2011
Gerrit asks:
Are you able to say anything about how much we could do with Simulink Coder alone, relative to your suggestion of adding Embedded Coder?
In other words, would it help us (to create a DLL file for option 1 of my original question) to use Simulink Coder, without Embedded Coder? Or would the C code generated from Simulink Coder still need too much modification to be useful?
Kaustubha Govind
Kaustubha Govind on 17 Oct 2011
Gerrit: I think if you have a fair amount of experience with C/C++, it should not be very difficult to create a DLL wrapper around the code generated using Simulink Coder. The one thing to keep in mind is that the code generated for Simulink Coder is not as efficient as from Embedded Coder. So if performance is not of utmost importance, I think it's worth spending some time writing your own DLL wrapper for code from Simulink Coder.

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More Answers (1)

Ivo Houtzager
Ivo Houtzager on 7 Jul 2020
There is a Simulink controller design example for GH Bladed and OpenFAST in github, see


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