INTERVAL OBSERVER DESIGN FOR A WIND ENERGY CONVERSION SYSTEM

Loc Phuoc Nguyen; Khai Nguyen Dang; Tin Trung Chau; Linh Nguyen; Ton Duc Do

doi:10.35382/tvujs.14.8.2024.107

Authors

Loc Phuoc Nguyen Vinh Long University of Technology Education, Viet Nam
Khai Nguyen Dang PhD student at Conservatoire National des arts et métiers, Paris, France
Tin Trung Chau School of Eng. and Digital Sciences (SEDS), Nazarbayev University Astana, Kazakhstan
Linh Nguyen Institute of Innovation, Science and Sustainability Federation University Australia
Ton Duc Do School of Eng. and Digital Sciences (SEDS), Nazarbayev University Astana, Kazakhstan

DOI:

https://doi.org/10.35382/tvujs.14.8.2024.107

Keywords:

interval observer, linear parameter-varying (LPV), MATLAB/Simulink, system uncertainties, wind turbine

Abstract

This research discusses unknown input interval observers for discrete-time wind turbine-generator systems. Firstly, the paper
presents a reliable interval observer for a linear parameter-varying (LPV) system with unknown and immeasurable parameters. Secondly, systems should be considered to jointly estimate the state and unknown inputs. To address this challenge, the study develops an interval observer for a discrete-time system incorporating unknown parameter vectors. These estimating techniques rely
on the insertion of extra weighting matrices to assist in reducing the impact of system uncertainties and to guarantee the stability and cooperation of the interval observers. Examples are simulated by MATLAB/Simulink software to demonstrate the effectiveness of the algorithms.