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A High Gain Observer Based Sensorless Nonlinear Control of Induction Machine
2015
International Journal of Power Electronics and Drive Systems
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In this technique, the control outputs can be derived step by step through appropriate Lyapunov functions. ...
A high gain observer is performed to estimate non available rotor speed and flux measurements to design the full control scheme of the considered induction motor drive. ...
Among the observation techniques one can use the high gain observer technique to design an appropriate sensorless control of IM drives. ...
doi:10.11591/ijpeds.v5.i3.pp305-314
fatcat:t7wbdglqlrbd3n63meqpyc7fdm
LMI-Observer-Based Stabilizer for Chaotic Systems in the Existence of a Nonlinear Function and Perturbation
2021
Mathematics
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Moreover, the stabilizer and observer design techniques are investigated for the nonlinear systems with an output nonlinear function. ...
In this study, the observer-based state feedback stabilizer design for a class of chaotic systems in the existence of external perturbations and Lipchitz nonlinearities is presented. ...
In this work, an observer-based stabilizer for nonlinear systems with external disturbance and an output nonlinear function is designed. ...
doi:10.3390/math9101128
fatcat:n4f4r4cy45ewpffkkszfippaha
Circle-criterion Based Nonlinear Observer Design for Sensorless Induction Motor Control
2014
International Journal of Automation and Computing
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This paper deals with the design of a nonlinear observer for sensorless induction motor control. ...
The simulation results are presented to illustrate the effectiveness of the proposed approach for nonlinear observer design. ...
With the help of Matlab S-function and Matlab Simulink, the nonlinear machine system and the nonlinear observer are simulated as shown in Fig. 1 . ...
doi:10.1007/s11633-014-0842-1
fatcat:a5zh5eo52fhhnmpsckl5u3dfea
Disturbance Observer- Based Control For Nonlinear Systems
[chapter]
2014
Disturbance Observer-Based Control
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This paper presents a general framework for nonlinear systems subject to disturbances using disturbance observer based control (DOBC) techniques. ...
A two-stage design procedure to improve disturbance attenuation ability of current linear/nonlinear controllers is proposed where the disturbance observer design is separated from the controller design ...
observer (4) is designed as in Section III with the chosen design function p(x) in (10) and there exists a gain function K such the transfer function (13) is asymptotically stable and strictly positive ...
doi:10.1201/b16570-9
fatcat:aqfa2uoktfav5nzp4fkbeawv74
Terminal Sliding Mode Control Using Adaptive Fuzzy-Neural Observer
2013
Mathematical Problems in Engineering
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First, a novel nonaffine nonlinear approximation algorithm is proposed for observer and controller design. ...
Moreover, based on the information of the adaptive observer, the terminal SMC law is designed. ...
Adaptive Fuzzy-Neural Observer Design. ...
doi:10.1155/2013/958958
fatcat:mnauuqzsarezhov6asv5yxg3jy
Fault Diagnosis of Nonlinear Uncertain Systems with Triangular Form
2017
Journal of Control Science and Engineering
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Firstly, an ESO is designed to jointly estimate the states and the combination of uncertainty, faults, and nonlinear function of nonlinear uncertain systems. ...
An observer-based residual generator is designed on the basis of the prior linearized model for fault diagnosis. ...
The sliding mode observer for the nonlinear fault diagnosis was designed to observe the whole nonlinear system and actuator in [18] . ...
doi:10.1155/2017/6354208
fatcat:wobx3xoqi5fppjvh25fxo3vqgi
Controller and Observer Techniques for Twin Rotor MIMO System
2019
International Journal of Engineering and Advanced Technology
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This paper elaborates the controller and observer system with all mathematical modeling of Twin Rotor MIMO System (TRMS) which is eminently nonlinear system. ...
Nonlinear state observer The nonlinear state observer is a local observer which needs all states of system should be measurable. ...
It has good performance on TRMS but only concern is high level nonlinearity and complexity of TRMS. Nowadays some new techniques are collaborated with PID. ...
doi:10.35940/ijeat.a9721.109119
fatcat:boksqa47jrchvnzrth5lvxsxva
Advanced Observer-Based Control for Benchmark Control Problems: From Mathematical Modeling to Control Design
2018
Mathematical Problems in Engineering
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An adaptive attitude controller is designed for Kinetic Kill Vehicle combining Barrier Lyapunov function with sliding mode controller. ...
The paper titled "Attitude Controller Design with State Constraints for Kinetic Kill Vehicle Based on Barrier Lyapunov Function" is submitted by T. Zhang et al. ...
We hope this special issue offers a wide-ranging and timely view of the area of design of observers and observer-based controllers, which will generate stimulation for further academic research and industrial ...
doi:10.1155/2018/2161456
fatcat:ylgnazn7uzh4nf27pnvu2oiacy
Nonlinear Disturbance Observer-Enhanced Dynamic Inversion Control of Missiles
2003
Journal of Guidance Control and Dynamics
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function to be designed. ...
Nonlinear Observer Gain Study An autopilot for the missile in Eqs. (1), (2) and (7) is designed us- ing the preceding nonlinear disturbance observer-enhanced dynamic inversion control technique. ...
doi:10.2514/2.5027
fatcat:jiswllccfffdxmuxwifrac6oea
Adaptive Robust Observer Design For A Class Of Uncertain Nonlinear Systems
2007
2007 International Conference on Mechatronics and Automation
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In this paper a adaptive predictive observer design methodology for a class of uncertain nonlinear systems in the presence of unknown nonlinearity and bounded disturbances is proposed. ...
The universal approximation property of neural networks is used in the predictive technique to develop adaptive predictive observer that ensure asymptotic convergence of the state estimation error to zero ...
In this paper, it is considered the problem of designing an adaptive predictive observer for a class of unknown nonlinear systems with unknown time-varying bounded disturbances. ...
doi:10.1109/icma.2007.4304174
fatcat:36davx2k55gtxeaima5otel7k4
Nonlinear robust observer design using an invariant manifold approach
2016
Control Engineering Practice
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In these techniques, the problems linked with nonlinear observer design have been dealt with by using linear techniques Email address: (iukhan1, david.wagg, n.sims) @sheffield.ac.uk (Irfan Ullah Khan, ...
In 1973 Thau [5] and then in 1975 Kou [6] were the first to attempt nonlinear techniques for the observer design. ...
doi:10.1016/j.conengprac.2016.06.015
fatcat:ifritab2ovavbd3s5vhdjjvcwq
Disturbance Observer Based Control for Nonlinear Systems
2004
IEEE/ASME transactions on mechatronics
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observer (4) is designed as in Section III with the chosen design function p(x) in (10) and there exists a gain function K such the transfer function (13) is asymptotically stable and strictly positive ...
p(x) 2 R m is a nonlinear function to be designed. ...
doi:10.1109/tmech.2004.839034
fatcat:lebsj6ep4bbktd7mnebjan7qki
A comparative study of nonlinear circle criterion based observer and H∞ observer for induction motor drive
2019
International Journal of Power Electronics and Drive Systems
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The advantage of the circle criterion approach for nonlinear observer design is that it directly handles the nonlinearities of the system with less restriction conditions in contrast of the other methods ...
<span lang="EN-US">This paper deals with a comparative study of circle criterion based nonlinear observer and H<sub>∞</sub> observer for induction motor (IM) drive. ...
Existing approaches can be roughly classified as follows: Nonlinear state linearization approaches, high-gain observers, geometric algorithms, variable structure design procedures, and algebraic techniques ...
doi:10.11591/ijpeds.v10.i3.pp1229-1243
fatcat:x6s7wphhxnexhdi7gyy3ybpbha
Robust Nonlinear Control Based on Disturbance Observer for a Small-Scale Unmanned Helicopter
2017
Journal of Nonlinear Analysis and Application
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A robust nonlinear controller based on disturbance observer for the trajectory tracking control of a smallscale unmanned helicopter with nonlinear structure under external disturbances and parameter uncertainties ...
is designed. ...
Figure 2 :Figure 3 :Figure 4 : 234 3D trajectory tracking of proposed robust nonlinear controller with disturbance observer Tracking errors of proposed robust nonlinear controller with disturbance observer ...
doi:10.5899/2017/jnaa-00390
fatcat:bug7mgipvnc7jf3qeqzzgvy2fa
Prescribed Performance Fuzzy Adaptive Output-Feedback Control for Nonlinear Stochastic Systems
2014
Abstract and Applied Analysis
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Fuzzy logic systems are used to identify the unknown nonlinear system, and a fuzzy state observer is designed for estimating the unmeasured states. ...
Based on the backstepping recursive design technique and the predefined performance technique, a new fuzzy adaptive output-feedback control method is developed. ...
Theorem 5 . 5 For the stochastic nonlinear system (1), if Assumptions 1-3 are satisfied, the controller (29) with the state observer (18) , together with the intermediate control functions (21) and (25 ...
doi:10.1155/2014/836378
fatcat:gmg2vkhnpbgdne7frzevhvc3qu
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