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Temperature Control with PID: Ziegler-Nichols vs Auto-Tuning

Approx. component budget: Rs. 3,000 - 6,000

Objective

Compare tuning methods and see how each changes overshoot, settling time and accuracy.

What you will build

A heater and a fan in a small chamber with a temperature sensor, a solid-state relay and a controller using PID with different tuning methods.

Results you can expect

• Step response for 3 tunings (overshoot, rise time, settling time)
• Steady-state error
• Disturbance rejection when the lid is opened
• And energy used

What you will learn

PID control, tuning methods, time delay and process dynamics.

Tools and notes

Heater element (low voltage), thermocouple or DS18B20, SSR, Arduino/ESP32. Use a low-voltage heater with a thermal fuse and never leave it unattended.

Resume points from this project

• Built and tested Temperature Control with PID: Ziegler-Nichols vs Auto-Tuning; objective: compare tuning methods and see how each changes overshoot, settling time and accuracy.
• Measured and analysed step response for 3 tunings (overshoot, rise time, settling time) and steady-state error; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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