Variable-order fuzzy fractional PID controller |
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Affiliation: | 1. Centre for Energy Studies, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;2. School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, United Kingdom;3. Department of Power Engineering, Jadavpur University, Salt Lake Campus, LB-8, Sector 3, Kolkata 700098, India |
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Abstract: | In this paper, a new tuning method of variable-order fractional fuzzy PID controller (VOFFLC) is proposed for a class of fractional-order and integer-order control plants. Fuzzy logic control (FLC) could easily deal with parameter variations of control system, but the fractional-order parameters are unable to change through this way and it has confined the effectiveness of FLC. Therefore, an attempt is made in this paper to allow all the five parameters of fractional-order PID controller vary along with the transformation of system structure as the outputs of FLC, and the influence of fractional orders λ and μ on control systems has been investigated to make the fuzzy rules for VOFFLC. Four simulation results of different plants are shown to verify the availability of the proposed control strategy. |
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Keywords: | Variable-order Fuzzy control Fractional calculus |
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