[TRNSYS-users] Type 2b controller dead band problem.

[Angel Carrera]

Mike,

you should connect the output control function of the controller to its own
input control function (Input number 4). Also, you should increase the value
of parameter 1, to the default value at least (the influence of this
parameter is explained at the type 2 documentation, I recommend you to read
it, together with the generic section for controllers at the trnsys help)

Regards

Angel


2011/9/19 Michael Bissett <mikebiscuit at gmail.com>

> Dear Trnsys
>
> I am experiencing problems with a simple* type 2b controller*.
>
> I am using a solar collector type 564b
>
> I am trying to compare the temperature of the output of the collector with
> output of the tank, getting a temperature difference. I have set the dead
> band from 4-10 degrees C.
>
> In the simulation as the temperature rises to 10degrees difference, the
> control signal is 1 switching the pump on correctly. but after this the
> controller only switches every time step. I have tried shortening the time
> step... and changing other parameters.. still with no success.
>
> I have attached the file.
>
> Yours Sincerely
>
> Mike Bissett
>
> Department of Electrical Engineering
> University of Cape Town
> South Africa
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>
>


-- 
*Àngel Carrera*

*Responsable I+D
Àrea tècnica*

Sistemes Avançats d'Energia Solar Tèrmica SCCL
C/ Roger de Llúria, 29 3r 2a 08009 Barcelona
Tel: (+34) 93 342 47 55 Fax: (+34) 93 342 47 56

angel.carrera at aiguasol.coop
http://www.aiguasol.coop
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