Work

Hybrid control of MISO systems with delays

Year: 2025

Type: article

Abstract: Hybrid control systems are able to go beyond fundamental limitations inherent to linear and time-invariant control systems. In this work, we employ a parallel control strategy based on a hybrid enhancement of the proportional–integral (PI) controller, the proportional–integral plus Clegg integrator (PI+CI) controller, in conjunction with a novel hybrid control approach (reset-and-hold strategy) to virtually eliminate overshooting in multiple-input single-output (MISO) first order LTI plants with time delay, all the while maintaining response velocity. This goes beyond earlier findings for both single-input systems with delay and MISO systems without delay. In an experimental case study, the developed method was successfully used to control the temperature of a heat exchanger in a pilot plant for food processing. • A new hybrid controller is applied to multiple-input systems with time delays. • Simple tuning rules are proposed for multiple-input first-order systems with delays. • Results show a good performance obtaining fast responses without overshooting.

Source: ISA Transactions

DOI: 10.1016/j.isatra.2025.03.020

Authors: José F. Sáez, Alfonso Baños, Aurelio Arenas

Institution: Universidad de Murcia

Language: English

Topic: Advanced Control Systems Design

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,150

Funder: Ministerio de Ciencia e Innovación