Windup in Control Owing to Sensor Saturation

Anti-windup control methods are presented for systems with saturating sensors, arbitrary external reference inputs, and constant or step-like disturbance inputs. Two novel solutions are explored, one for SISO systems and the other for MIMO systems. Both methods emphasize real-world practicality and can be applied to control and process industries.

Format: Paperback / softback
Length: 100 pages
Publication date: 18 May 2021
Publisher: Springer Nature Switzerland AG

This concise paper explores effective methods for anti-windup control in the presence of saturating sensors, arbitrary external reference inputs, and constant or step-like disturbance inputs. Additionally, it offers techniques to ensure windup prevention when both the input and output signals are limited, particularly for systems with one input (SISO) and multiple inputs (MIMO). The primary focus of both approaches is on real-world practicality rather than rigorous stability proofs.

Two innovative solutions for anti-windup control are presented. The first approach, specifically tailored for SISO systems, follows a traditional design paradigm: design an arbitrary linear compensator and incorporate appropriate measures to prevent their occurrence if saturation leads to stability issues. This method utilizes a saturation indicator that detects the presence but not the extent of saturation.

The second methodology, applicable to both SISO and MIMO systems, employs a compensator design that guarantees the desired rejection of persistent disturbances while maintaining closed-loop stability. This approach involves a trade-off between disturbance rejection and stability constraints, ensuring that the system remains stable even in the presence of severe disturbances.

To enhance understanding, the paper includes worked examples that can be reproduced by the reader. Additionally, illustrative simulations are provided to demonstrate the effectiveness of the proposed methods. Furthermore, open problems for future research are identified to encourage further exploration in this field.

Windup in Control Owing to Sensor Saturation will appeal to both academics and engineers specializing in control and process industries. By presenting practical solutions and fostering research, this paper contributes to the advancement of control theory and its application in real-world scenarios.

Weight: 454g
Dimension: 235 x 155 (mm)
ISBN-13: 9783030731328
Edition number: 1st ed. 2021