temperature control system using peltier modules

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I am fairly new to simulink but i have had some little experience and for a final year project i need to design a temperature control system using simulink. This design should be able to do the following
  • Accept inputs from a user(prefered temperature)
  • peltier module should either heat or cool depending on desired temperature
  • a fan should help in the circulation of the hot or cold air from the surface of the peltier modul
my progress so far is that i have figured out how the fan is connected and how the peltier is also connected but i do not know how to integrate the two systems to function as have described in a controlled chamber

Answers (1)

Prasanna
Prasanna on 19 Sep 2024
Hi Adam,
It looks like you want to know more about how to design a temperature control system using Peltier modules. To build and integrate the Simulink model, you can refer to the following steps:
  • Model the components of a Peltier module and a Fan. To model a Peltier module, you can create a subsystem that models the heating and cooling behaviour. You can use a transfer function or a state-space model to represent the thermal dynamics.
  • You can then use a constant’/’Slider Gain block to allow user to set the desired temperature.
  • Simulation of a temperature sensor can then be done using a Gain block that converts the actual temperature to a sensor reading.
  • To implement the control logic, you can use a Stateflow chart to compare the actual and desired temperature. Then based on the comparison, you can turn the Peltier module on/off and active the fan to circulate air.
  • For integration, you can combine all the subsystems into a single model using ‘Mux’ block to combine signals and ‘Demux’ blocks to split them as needed.
For more resources regarding building control systems, you can refer the following documentations:
Hope this helps!

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