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- Title
Optimal fractional-order series cascade controller design: A refined Bode's ideal transfer function perspective.
- Authors
Yadav, Manish; Patel, Hirenkumar G; Nagarsheth, Shaival H
- Abstract
In process industries, cascade control is comprehensively used for disturbance attenuation. This manuscript presents the control of the non-minimum phase (NMP) system with dead time via a series cascade scheme. An improved fractional-filter-based control scheme encompassing inverse and dead time compensators with analytical tuning is proposed. The design hinges on an enhanced Bode's ideal transfer function, which incorporates delay and NMP zero to deal with the system's NMP and dead time. Particle swarm optimization (PSO) is utilized to obtain the optimal assessment of fractional filter-based controller settings by minimizing an objective function. Two benchmark problems are presented to test the efficacy of the recommended controller. The Riemann surface and sensitivity examination are used to realize the stability and robustness of the feedback design. Numerical simulations exhibit the superiority of the suggested controller for closed-loop results.
- Subjects
TRANSFER functions; PARTICLE swarm optimization; CASCADE control; RIEMANN surfaces; BENCHMARK problems (Computer science)
- Publication
Transactions of the Institute of Measurement & Control, 2024, Vol 46, Issue 10, p1955
- ISSN
0142-3312
- Publication type
Article
- DOI
10.1177/01423312231217761