Re: [TRNSYS-users] Iterative feedback controller

["Diego A. Arias" <daarias@wisc.edu>]

Dear Ming,

It is possible that you do not have enough inertia in your system, so
the controller is creating two very different solutions when it is
turned on or off, and it has problems reaching a converged solution.
Please feel free to send me your project files. I will take a look at it
and will try to give you suggestions for your project.
Best regard,

Diego


----- Original Message -----
From: "Liu, Ming - liumy008" <Ming.Liu@postgrads.unisa.edu.au>
Date: Wednesday, October 18, 2006 9:02 pm
Subject: [TRNSYS-users] Iterative feedback controller
To: trnsys-users@engr.wisc.edu

> Dear all,
> 
> 
> 
> In my model, I used an Iterative Feedback Controller (Type22) to 
> controla variable speed fan. After the simulation, I found the 
> controller was
> stuck during 48% of the time. Is that mean I can not rely on my
> simulation results? 
> 
> 
> 
> Actually, I got many other questions when using Type22. I have read 
> theManual, but I am still not sure how the Type22 works. I also 
> looked at
> the FORTRAN codes and I got trouble to understand it. Is there anyone
> can explain it? 
> 
> 
> 
> Thanks in advance!  
> 
> 
> 
> Cheers,
> 
> Ming 
> 
>