This study introduces a novel method for identifying dynamic systems aimed at deriving reduced-fractional-order models. Applicable to processes exhibiting an S-shaped step response, the effectively characterizes fractional behavior within range of orders (α∈[0.5,1.0]). The uniqueness this approach lies in its hybrid nature, combining one-variable optimization techniques estimating model order α with analytical expressions estimate parameters T and L. leverages information from reaction curve...

The Ziegler-Nichols tuning rules have been very influential and used extensively in process industry. This paper presents an extension of the modified for fractional PI controllers. design method consists on minimizing a frequency objective function subject to constraint maximum sensitivity M <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">S</sub> . In this it is also demonstrated that substantially better performance can be obtained using <sup...

This paper aims to present a general identification procedure for fractional first-order plus dead-time (FFOPDT) models. method is processes having S-shaped step responses, where process information collected from an open-loop step-test experiment, and has been conducted by fitting three arbitrary points on the reaction curve. In order validate this check its effectiveness of fractional-order models curve, analytical expressions FFOPDT model parameters have obtained both situations: as...

This paper presents a new method for identifying dynamical systems to get fractional-reduced-order models based on the process reaction curve. proposal uses information collected from process. It can be applied processes with an S-shaped step response that considered fractional behavior and order range of α ∈ [0.5, 1.0]. The proposed approach combines obtaining model using asymptotic properties Mittag-Leffler function time-based parameter estimation by considering two arbitrary points...

Fractional-order systems capture complex dynamic behaviors more accurately than integer-order models, yet their real-time identification remains challenging, particularly in resource-constrained environments. This work proposes a hybrid framework that combines Particle Swarm Optimization (PSO) with various artificial intelligence (AI) techniques to estimate reduced-order models of fractional systems. First, PSO optimizes model parameters by minimizing the discrepancy between high-order...

This paper proposes a hybrid control framework based on internal model concepts, sliding mode methodology, and fractional-order calculus theory. As result, modified Smith predictor (SP) is proposed for nonlinear systems with significant delays. The particular predictive approach enhances the (SMC) controller's transient responses dead-time processes, SMC gives structure robustness mismatches by combining previous methods fractional order concepts; result dynamical controller. A numerical...

This paper presents new tuning rules for fractional PI control of processes that are typically found in process control. The based on characterization dynamics by three parameters can be obtained from a simple step response experiment. minimizing frequency objective function subject to constraint the maximum sensitivity. Comparisons with classical show they very but give substantially better performance.

In this paper, a general procedure for identifying fractional first‐order plus dead‐time (FFOPDT) model is presented. This based on fitting three arbitrary points the process reaction curve, where information obtained from simple open‐loop test. A simplification of identification also considered, only symmetrically located curve are selected. The proposed symmetrical has been applied to following sets representative points: (5–50–95%), (10–50–90%), (15–50–85%), (20–50–80%), (25–50–75%), and...

In this paper, the conceptualization of a control hardware architecture aimed to implementation integer- and fractional-order identification algorithms is presented. The proposed combines capability implementing PC-based applications with embedded on microprocessor- FPGA-based real-time targets. work, potential advantages over other available alternatives are discussed from different perspectives. experimental prototype that has been designed built evaluate in work also described detail....

In this paper, an analytical procedure to identify a fractional-first order plus dead time (FFOPDT) model is presented. This applied processes with overdamped or underdamped step response, i.e., fractional values in the range 0.5 ≤ α 2.0 can be estimated. The required process information obtained through simple open-loop experiment and based on fitting three arbitrary points (x 1 -x 2 3 %) reaction curve. Some numerical examples are proposed show effectiveness applicability of for...

The main objective of this paper is to present a software application developed for the practical training in programming, handling, and tuning industrial PID regulators. Because wide spread use control it highly desirable that professional qualification should be focused on achieving closely related practice. Some comments relating practice are offered context.

New tuning rules for two-degree-of-freedom (2-DoF) PI controllers several robustness levels in the spirit of kappa-tau are presented this paper. The based on characterization process dynamics by three parameters, i.e. static gain K <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">P</sub> , and xmlns:xlink="http://www.w3.org/1999/xlink">180</sub> frequency ω where phase lag is 180 <sup xmlns:xlink="http://www.w3.org/1999/xlink">o</sup> which can...

A computational thinking under simulated environment with amendable properties is promoted. It exemplified on a real drum boiler multi-loop linear control. The model based the boiler-turbine plant P16/G16, which oil-fired and rated power 160 MW, at Sydvenska Kraft AB Plant in Malmö, Sweden. proficient symbolic numerical combination points out fast very efficient automatic engineering calculation. This contribution aims tailor-made small simulators Matlab for those industrial processes are...

The main objective of this paper is to present an innovative equipment for practical teaching in control engineering, paying special attention its conceptualisation and possibilities the theoretical-practical training. role automation issues applied prototype discussed. A distributed system (DCS) will be introduced

This paper introduces a proposal for health care monitoring. application has been implemented by purely wireless ad-hoc networking with gateway devices Bluetooth communications module controlled programmable microprocessor. communication system is suggested, instance, to compose electronic records (EHR), or be part of Hospital Information System (HIS). The aim this the presentation physical implementation network. Prototype boards have developed and first trials will done.

The main objective of this paper is to present a drum level control prototype, paying special attention its conceptualization and possibilities for the theoretical-practical training. Emphasis placed on role control, industrial instrumentation, automation issues applied prototype. Considerations over process are explained in detail. Extensive experimental results also described. Some comments related practice offered context.