Fuzzy logic based temperature control of thermoelectric cooler

[izzati]

Hello

I am programming a P-type and PD-type fuzzy logic based temperature cintrol of thermoelectric cooler (in seperate programming file, see attached file). The input to the P-type and PD-type fuzzy controller is the temperature error and change of error, while the output from the P-type and PD-type fuzzy controller is the voltage to the thermoelectric cooler. The universe of discourse for the input P-type fuzzy logic is set from -50C to 50C and PD-type fuzzy logic is from -2C/sec to 2C/sec, while the output is set from -5V to 5V.

1) I want to know whether my programming for both files are correct? (all the components used, are they OK?)

2) Why the output temperature couldn't reached the setpoint temperature? Is it because of the tuning problem (do I need to add gain)? If I add gain, wouldn't it affect the universe of discourse the the output voltage?

Please reply. Thank you.

[semu]

sir i m working on the designing of automatic room light control system using labview..if you have labview vi related to this project plz send m ASAP thanks in advance

[pinak]

sir please check it as i am doing project on this

[johnsold]

I doubt you will get a reply.  izzati last logged in to the Forums in 2011.

Please start a new thread and be as specific as possible about what you are trying to do, what you have tried, what did not work (including error codes), and what you would like from the participans in the Forum.  Vague, general questions or ones which sound like they want someone to do all the work usually do not get good responses.

Lynn