A New Interval Observer Design Method with Application to Fault Detection

2019 ◽  
pp. 233-243 ◽  
Author(s):  
Liliang Li ◽  
Zhijie Shao ◽  
Rui Niu ◽  
Gang Liu ◽  
Zhenhua Wang
Keyword(s):  
Fault Detection ◽  
Design Method ◽  
Observer Design ◽  
Interval Observer

scholarly journals Distributed fault detection for non-linear multi-agent systems: an adjustable dimension observer design method

2019 ◽  
Vol 13 (15) ◽  
pp. 2407-2415 ◽  
Author(s):  
Xiuhua Liu ◽  
Jian Han ◽  
Xinjiang Wei ◽  
Huifeng Zhang ◽  
Xin Hu
Keyword(s):  
Fault Detection ◽  
Design Method ◽  
Observer Design ◽  
Multi Agent Systems ◽  
Agent Systems ◽  
Non Linear ◽  
Multi Agent ◽  
Distributed Fault Detection

scholarly journals Interval observer design method for asynchronous switched systems

2020 ◽  
Vol 14 (8) ◽  
pp. 1082-1090 ◽  
Author(s):  
Jun Huang ◽  
Xiang Ma ◽  
Xudong Zhao ◽  
Haochi Che ◽  
Liang Chen
Keyword(s):  
Switched Systems ◽  
Design Method ◽  
Observer Design ◽  
Interval Observer

Functional interval observer design for singular fractional-order systems with disturbances

2020 ◽  
pp. 014233122094489
Author(s):  
Dinh Cong Huong ◽  
Dao Thi Hai Yen
Keyword(s):  
Fractional Order ◽  
Design Method ◽  
Observer Design ◽  
Effective Algorithm ◽  
Fractional Order Systems ◽  
Full State ◽  
Simulation Results ◽  
Interval Observer ◽  
Interval Observers ◽  
State Functions

In this study, we consider the problem of designing functional interval observers for a class of singular fractional-order systems. The goal of this work is to design not a full state interval observer for singular fractional-order systems, but to design an observer for state functions of this kind of systems. Conditions for the existence of such functional interval observers are given and an effective algorithm for computing unknown observer matrices is provided in this study. Two numerical examples and simulation results are provided to illustrate the effectiveness of the proposed design method.

scholarly journals Interval observer design for estimation and control of time-delay descriptor systems

2015 ◽  
Vol 23 ◽  
pp. 26-35 ◽  
Author(s):  
Denis Efimov ◽  
Andrey Polyakov ◽  
Jean-Pierre Richard
Keyword(s):  
Time Delay ◽  
Observer Design ◽  
Descriptor Systems ◽  
Estimation And Control ◽  
Interval Observer ◽  
And Control

scholarly journals Robust Interval Observer Design for Fractional-Order Models with Applications to State Estimation of Batteries

2020 ◽  
Vol 53 (2) ◽  
pp. 3683-3688
Author(s):  
Erik Hildebrandt ◽  
Julia Kersten ◽  
Andreas Rauh ◽  
Harald Aschemann
Keyword(s):  
State Estimation ◽  
Fractional Order ◽  
Observer Design ◽  
Interval Observer

scholarly journals Suboptimal Disturbance Observer Design Using All Stabilizing Q Filter for Precise Tracking Control

Mathematics ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1434 ◽  
Author(s):  
Wonhee Kim ◽  
Sangmin Suh
Keyword(s):  
Design Method ◽  
Industrial Applications ◽  
Point Of View ◽  
Observer Design ◽  
Linear Matrix ◽  
External Disturbances ◽  
Closed Loop Systems ◽  
Control Target ◽  
The Stability ◽  
Unified Index

For several decades, disturbance observers (DOs) have been widely utilized to enhance tracking performance by reducing external disturbances in different industrial applications. However, although a DO is a verified control structure, a conventional DO does not guarantee stability. This paper proposes a stability-guaranteed design method, while maintaining the DO structure. The proposed design method uses a linear matrix inequality (LMI)-based H∞ control because the LMI-based control guarantees the stability of closed loop systems. However, applying the DO design to the LMI framework is not trivial because there are two control targets, whereas the standard LMI stabilizes a single control target. In this study, the problem is first resolved by building a single fictitious model because the two models are serial and can be considered as a single model from the Q-filter point of view. Using the proposed design framework, all-stabilizing Q filters are calculated. In addition, for the stability and robustness of the DO, two metrics are proposed to quantify the stability and robustness and combined into a single unified index to satisfy both metrics. Based on an application example, it is verified that the proposed method is effective, with a performance improvement of 10.8%.

scholarly journals Distributed H_/L∞ fault detection observer design for linear systems

2020 ◽  
Vol 53 (2) ◽  
pp. 688-693
Author(s):  
Weixin Han ◽  
Harry L. Trentelman ◽  
Bin Xu
Keyword(s):  
Fault Detection ◽  
Linear Systems ◽  
Observer Design
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