[TRNSYS-users] coupling of TRNSYS MATLAB

[Jan Hoogmartens]

Dear,

I am trying to couple TRNYS with MATLAB.  I installed TRNSYS 16.0 en Matlab 2007 on my computer. The examples for this coumpling given by the trnsys software are working perfect. My problem occures when I want to use the matlab code as an controller (parameter 4 is set to 10).

In TRNSYS, I want to control a ground coupled heat pymp (type 668) with a building (type 56). Based on the return temperature of the active layers of my building model, matlab has to send a control signal to the heat pump.

Parameter 4 from type 155 is set to 10. So the m-file is only called after convergence of onther components is reached. Based on the outdoor temperature, a heating curve and the return temperature of the active layers; an control signal must be send to the heat pump. This is not working in my code. Al the outputs are constant during the simulation time. The m-file reads the inputs correctly, but don't send an output signal. Do you have an idea what's the problem with the code?

Thanks in advance,

Jan

-----------------------------------------------------------
Ing. Jan Hoogmartens
Wetenschappelijk medewerker
KULeuven
Department of mechanical engineering
Division applied mechanics and energy conversion

Celestijnenlaan 300A bus 2421
3001 heverlee
BELGIUM
tel: +32 16 32 25 08
fax: +32 16 32 29 85

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