Fractional order PID Controller: Design and Comparison with Conventional PID Controller for the Robust Control of DC Motor using Fuzzy SMC
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 4
Abstract
This paper presents a robust control of DC Motor using fuzzy sliding mode control scheme and the additional Fractional PID controller. The additional controller relaying on the sliding-mode theory is used to improve the dynamical characteristics of the drive system. Sliding mode control method is studied for controlling DC motor because of its robustness against model uncertainties and external disturbances. In this method, using high control gain to overcome uncertainties lead to occur chattering phenomena in control law which can excite unmodeled dynamics and maybe harm the plant. In order to enhancement the sliding mode controller performance, we have used fuzzy logic. For this purpose, we have used a Fractional PID outer loop in the control law then the gains of the sliding term and Fractional PID term are tuned on-line by a fuzzy system, so the chattering is avoided and response of the system is improved against external load torque here. Presented implementation results on a DC motor confirm the above claims and demonstrate the performance improvement in this case.
Authors and Affiliations
Y. A. Ajmera, S. S. Sankeshwari
Keywords
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- EP ID EP388224
- DOI 10.9790/1676-1204024754.
- Views 157
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