Tuning of PID Controllers for Air Conditioning System

Abstract

This paper describes a tuning for PID controller based on a trial and error method. The algorithm is applied to a computer based single-input single-output (SISO) on air conditioning (AC). Some experiments are conducted to observe the ability of the controller in the temperature control of SISO AC under set-point changes. The controller gains to obtain a good response of the room temperature and optimum energy consumption for the system studied were found to be 3.3, 0.180 and 0.040 for the proportional, integral and derivative terms, respectively. The experimental results prove that the controller is capable of giving a good control result for the process.