Position control of a pneumatic system by multimode pid-sliding mode controller | |
| Author | Nguyen Tung Lam |
| Call Number | AIT Thesis no.ISE-07-22 |
| Subject(s) | Pneumatic control Sliding mode control |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Mechatronics, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Sliding mode control is appropriate to nonlinear system, such as pneumatic system, because of its property of robustness to system uncertainties and bounded external disturbances. However, a drawback that makes this control technique inapplicable is chattering phenomenon. Normally, a boundary layer is embedded to reduce chattering, but with the existence of boundary layer, there is a tradeoff between the smoothness of control signal, the tracking performance and the settling time of the controlled system. To compromise this tradeoff, a multimode PID-Sliding mode controller for position control of a pneumatic system is presented in this thesis. Multimode PID-Sliding mode control is designed to smooth out control signal and guarantee a good tracking performance of pneumatic system. In this thesis, a systematic design of sliding mode control is proposed. The way to identify system parameters and the structure of multimode PID-Sliding mode controller is explained. Multimode control strategy is investigated by simulation to verify its ability. After simulation, experimentally, multimode PID-Sliding mode control is implemented on a real pneumatic hardware that comprises of a rodless cylinder and a proportional valve to test its performance. The experiment results exhibits the effectiveness of multi mode controller in ensuring control quality |
| Year | 2007 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Manukid Parnichkun |
| Examination Committee(s) | Afzulpurkar, Nitin V.;Bohez, Erik L. J. |
| Scholarship Donor(s) | MOET, Vietnam - AIT Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |