Performance Comparison On PID And MIT Rule Approach For Electro-Pneumatic Position System

Medon, Nurul Izzati (2017) Performance Comparison On PID And MIT Rule Approach For Electro-Pneumatic Position System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Pneumatic system is one of fluid power system that commonly used in industry which generated by electrical source and normally called as electro-pneumatic system. This system convert the electrical energy to the mechanical energy in order to create motion. Normally, this system need a proper control system because of the high sensitivity of the system. There are various controllers that can be used in controlling the electro-pneumatic system and the performance is differ depends on the criteria of the performance required. In this project, the performance needed is to control the position of the electro-pneumatic system. The proper modelling of pneumatic system has been explained using derivation of mathematical modelling. All aspects in modelling the system such as the component of the system, the disturbances and sensitivity of the system as well as the nonlinearity of the system are considered. PID controller and MIT rule are the controllers that have been investigated in this project. The strategy in designing the controller is also has been discussed. PID controller used Ziegler-Nichols method as strategy to control the system while MIT rule used Model Reference Adaptive Control (MRAC) as the control strategy. From both controllers, the performance in position control of the system is analyzed. The performance characteristics used to evaluate the best controllers are the rise time, settling time, percentage overshoot, peak time and steady state based on the system response. The response is obtained from the simulation of the plant system in MATLAB Simulink software. The comparison of both controllers has been analyzed in this project.

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