Author
L. Sanchez Rodriguez
Bio: L. Sanchez Rodriguez is an academic researcher from University of Castilla–La Mancha. The author has contributed to research in topics: PID controller & Robustness (computer science). The author has an hindex of 4, co-authored 4 publications receiving 259 citations.
Papers
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TL;DR: In this article, a robust fractional order controller is proposed for controlling main irrigation canals with variable dynamical parameters based on robust PIDs, which exhibit the same robustness as the previous PID to time delay and gain changes.
134 citations
TL;DR: In this article, the authors proposed a new methodology to design fractional integral controllers combined with Smith predictors, which are robust to high frequency model changes, in particular, special attention is paid to time delay changes.
89 citations
TL;DR: In this paper, a mathematical model of irrigation main canals is derived from on-line system identification experiments using a robust system identification procedure, which takes into account prior physical information.
46 citations
TL;DR: In this paper, a robust fractional order PI controller (FPI) based on frequency specifications for water distribution in a main irrigation canal pool is proposed, which is implemented in a PLC of the Siemens company (Simatic 300).
9 citations
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TL;DR: In this article, a method for tuning the PI λ D μ controller is proposed to fulfill five different design specifications, including gain crossover frequency, phase margin, and iso-damping property of the system.
881 citations
TL;DR: This review investigates its progress since the first reported use of control systems, covering the fractional PID proposed by Podlubny in 1994, and is presenting a state-of-the-art fractionalpid controller, incorporating the latest contributions in this field.
447 citations
TL;DR: To reduce the chattering phenomenon in sliding mode control (SMC), a fuzzy logic controller is used to replace the discontinuity in the signum function at the reaching phase in the sliding mode controller.
201 citations
TL;DR: It is analytically shown that a time invariant fractional order system contrary to its integer order counterpart cannot generate exactly periodic signals, as a result, a limit cycle cannot be expected in the solution of these systems.
173 citations
TL;DR: A way to solve the fractional differential equations using the Riemann-Liouville fractional integral for repeated fractional integration and the generalized block pulse operational matrices of differentiation are proposed.
Abstract: The Riemann-Liouville fractional integral for repeated fractional integration is expanded in block pulse functions to yield the block pulse operational matrices for the fractional order integration. Also, the generalized block pulse operational matrices of differentiation are derived. Based on the above results we propose a way to solve the fractional differential equations. The method is computationally attractive and applications are demonstrated through illustrative examples.
152 citations