Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
A novel Anti-windup Compensator (AWC) is proposed for the Linear Extended State Observer (LESO) in the Linear Active Disturbance Rejection Controller (LADRC). Unlike classical AWC structures, this compensator augments LADRC by dynamically adjusting state variables and extended state compensation within the LESO, resulting in the method being termed AWC-LESO. The adjustment is based on the degree of saturation, effectively mitigating the impact of input saturation on the system.Stability conditions for the modified system are derived via Lyapunov functions and Linear Matrix Inequality (LMI) methods, with validation through convex optimization, demonstrating system stability and identifying a maximal subset of the estimated domain of attraction.This method is applied to design an autopilot for a near-space hypersonic vehicle prone to controller saturation. Comparative simulation experiments on a mathematical model of a near-space supersonic vehicle validate the effectiveness of the proposed approach, confirming its practical applicability.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.isatra.2025.07.051 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Anti-windup compensator based on LADRC and its application in the attitude control of near-space aircraft.
ISA Trans
August 2025
Control Engineering, Harbin Institute of Technology, No.92 Xidazhi Street, Harbin, 150028, Heilongjiang, China. Electronic address:
A novel Anti-windup Compensator (AWC) is proposed for the Linear Extended State Observer (LESO) in the Linear Active Disturbance Rejection Controller (LADRC). Unlike classical AWC structures, this compensator augments LADRC by dynamically adjusting state variables and extended state compensation within the LESO, resulting in the method being termed AWC-LESO. The adjustment is based on the degree of saturation, effectively mitigating the impact of input saturation on the system.
View Article and Find Full Text PDFData-driven coordinated path-following of multiple marine surface vehicles with input saturations.
ISA Trans
August 2025
School of Marine Engineering, Dalian Maritime University, Dalian, 116026, China. Electronic address:
In this paper, the coordinated path-following problem of multiple marine surface vehicles (MSVs) in narrow waterways and considering the widespread disturbances, uncertainties, and input constraints is innovatively solved by creating a novel coordinated surge-heading guidance-based direct data-driven constrained control (CSH-DDCC) approach. Salient contributions are fourfold: 1) By devising a line-of-sight (LOS) based single path parameter updating law and a discrete reduced-order extended state observer (RESO) based multiple path parameter dynamics estimator, a coordinated surge-heading (CSH) guidance law is first developed to ensure both asymptotic tracking of each vehicle along the reference path and accurate coordination among these vehicles. 2) Within the devised CSH guidance scheme and by deploying the dynamic anti-windup compensation technique, a novel direct data-driven constrained control (DDCC) law is further proposed to efficiently deal with the model-unavailable deficiency and input constraints at the dynamic level.
View Article and Find Full Text PDFAnti-windup control of discrete time switched delay systems with actuator saturation and failures.
Sci Rep
July 2025
School of Information and Control Engineering, Liaoning Petrochemical University, Fushun, 113001, People's Republic of China.
The problem of L-gain analysis and anti-windup (AW) fault-tolerant controller design of a class of time-varying delay discrete-time switched systems with actuator saturation and external disturbances is investigated by using the multiple Lyapunov functionals method. Firstly, for each subsystem, we construct an AW fault-tolerant controller consisting of a dynamic state feedback (DSF) controller and an AW compensator, such that the closed-loop system with actuator faults can meet the disturbance attenuation performance index and ensure that the state trajectories of the closed-loop system are bounded under the action of external disturbances. Then, the problem of estimating the allowable interference capacity is transformed into a constrained optimization problem.
View Article and Find Full Text PDFAn optimized shunt active power filter using the golden Jackal optimizer for power quality improvement.
Sci Rep
May 2025
Department of Electrical Engineering, College of Engineering, Taif University, Taif, 21944, Saudi Arabia.
Integration of nonlinear loads in modern power systems has led to many issues arising mainly due to the generation of harmonic currents and the presence of reactive power, both having adverse effects on power quality and grid stability. Harmonic currents cause increased losses, overheating of equipment, and voltage distortions, while reactive power imbalances result in inefficiencies in power delivery and compromised system performance. To overcome these problems, a Shunt Active Power FIlter design and an optimal control strategy for harmonic mitigation and reactive power compensation are proposed in this paper.
View Article and Find Full Text PDFThis article aims to address the formation control issue of the unknown nonaffine nonlinear heterogeneous multiagent system (MAS) considering formation tracking accuracy and computational cost. A novel dynamic prescribed boundary-based event-triggered mechanism is proposed first to flexibly adjust the emphasis on these two indicators, and applied to data modeling and controller design simultaneously to reduce their computational cost. On one hand, an observer-based pseudo gradient estimation algorithm is designed under event-triggered framework for model reconfiguration with only input/output data of system rather than mathematical dynamics.
View Article and Find Full Text PDF