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GLOBAL ROBUST H∞ CONTROL FOR NON-MINIMUM-PHASE UNCERTAIN NONLINEAR SYSTEMS WITHOUT STRICT TRIANGULAR STRUCTURE

Shengzhi Zhao, Jun Zhao, Georgi M. Dimirovski
2005 IFAC Proceedings Volumes  
This paper deals with the robust H ∞ control problem for a class of multi-input non-minimum-phase nonlinear systems with parameter uncertainty.  ...  A system of this class is assumed to be in a special interlaced form, which includes a strict triangular form as a special case.  ...  In this paper, we will extend the backstepping technique to multi-input non-minimum-phase systems which are non-strict triangular form.  ... 
doi:10.3182/20050703-6-cz-1902.01149 fatcat:eq3qijbjnrekbewh7hs2xtisye

Performance bounds for feedback control of non-minimum phase MIMO systems with arbitrary delay structure

E.I. Silva, M.E. Salgado
2005 IEE Proceedings - Control Theory and Applications  
This paper derives 2-norm performance bounds for the feedback control of discrete-time MIMO nonminimum phase (NMP) systems with arbitrary delay structure.  ...  Case I: stable, minimum phase plant Theorem 2.  ...  of the first plant, but that is minimum phase.  ... 
doi:10.1049/ip-cta:20045056 fatcat:a5tougfsmfh75e6unixnxamxyi

System structure of model error compensator for non-minimum phase MIMO systems
非最小位相多入出力系に対するモデル誤差抑制補償器の構成

Ryuichiro Yoshida, Takumi Sato, Hiroshi Okajima
2021
In previous studies, the theories are developed such as applying MEC to non-linear system, non-minimum phase system, and MIMO system, and the effects of MEC is presented.  ...  In this paper, for the purpose of further improving the versatility of MEC, we propose a design method of MEC for the non-minimum phase systems with polytopic uncertainty using parallel feedforward compensator  ... 
doi:10.11511/jacc.64.0_555 fatcat:pfvdj7l2k5ahbegbnrj4muldnq

Enhancement of PID Controller Performance for a Quadruple Tank Process with Minimum and Non-Minimum Phase Behaviors

E. Govinda Kumar, B. Mithunchakravarthi, N. Dhivya
2014 Procedia Technology - Elsevier  
The selection of controlling the flow ratios in quadruple tank process act as Minimum and Non-minimum phase system.  ...  Its performance can be affected when system is shifted from minimum to non-minimum phase configuration and vice versa.  ...  PID controllers and applied to the four tank system with minimum phase and non-minimum phase system.  ... 
doi:10.1016/j.protcy.2014.08.061 fatcat:rz4th5bdqbelnii6gxbxfjsvcm

Online Time Delay and Disturbance Compensation for Linear Non-Minimum Phase Systems

Özlem Demirtaş, Mehmet Önder Efe
2021 Acta Polytechnica Hungarica  
Herein, a disturbance observer is designed for linear non-minimum phase systems. A Smith Predictor is added to the system, using Recursive Least Squares (RLS), with a forgetting factor algorithm.  ...  The combination of both approaches, eliminates the restrictive feature of the classical disturbance observer, for non-minimum phase systems and removes the necessity for precise delay measurements, for  ...  Approximation of Non-Minimum Phase Systems In order to invert the non-minimum phase system transfer function, minimum phase equivalents of the RHP zeros in the numerator of the nominal system that make  ... 
doi:10.12700/aph.18.8.2021.8.9 fatcat:ohwrykx2jneahntdfkfhileshe

Dynamic output feedback sliding mode control for non-minimum phase systems with application to an inverted pendulum

Jiehua Feng, Shouli Gao, Dongya Zhao, Xinggang Yan, Sarah K. Spurgeon
2020 IFAC-PapersOnLine  
In this paper, a class of nonlinear systems is considered, where the nominal system representation is allowed to be non-minimum phase.  ...  A sliding surface is proposed which is a function of the measured system output and an estimated state.  ...  to be non-minimum phase.  ... 
doi:10.1016/j.ifacol.2020.12.1182 fatcat:j563ojwhxbgbtofi3b4jpr4keu

Control design for arbitrary complex nonlinear discrete-time systems based on direct NNMRAC strategy

Shengquan Li, Juan Li, Jinhao Qiu, Hongli Ji, KongJun Zhu
2011 Journal of Process Control  
A novel scheme of neural network model reference adaptive control is proposed for arbitrary complex nonlinear discrete-time systems, i.e., non-minimum phase system, time-delay system and minimum phase  ...  Through constructing the pseudo-plant, the direct NNMRAC is also effective to the nonlinear non-minimum phase system.  ...  But the inverse system of non-minimum phase system is unstable, so general NNMRAC cannot be used directly.  ... 
doi:10.1016/j.jprocont.2010.10.010 fatcat:d5g5me4bg5boxjonr7crz7yr34

Model Approximate Method of Complex System

Juan Chen
2015 International Journal of Modeling and Optimization  
So this paper proposes a low order identification structure and an optimization method for model approximation of the complex model containing the time delay and non-minimum phase parts.  ...  multivariable multiple time delay system and needs to be reduced order.  ...  But when the original complex system contains non-minimum phase model structure, the model structure in (3) can not reflect the non-minimum phase characteristics of the original system, thus causes the  ... 
doi:10.7763/ijmo.2015.v5.448 fatcat:ukzawwrth5antbgersqj23iycm

Decentralized stable and robust fault-tolerant PI plus fuzzy control of MIMO systems: a quadruple tank case study

Himanshukumar R. Patel, Vipul A. Shah
2019 International Journal on Smart Sensing and Intelligent Systems  
and non-minimum phases.  ...  The simulation results show that the proposed decentralized fault-tolerant PI plus fuzzy controller has a more accurate tracking level and less computational time in both minimum and non-minimum phases  ...  phase and non-minimum phase system.  ... 
doi:10.21307/ijssis-2019-004 fatcat:pgifqa4vorfpblv2akizrxx42a

Page 21 of Automation and Remote Control Vol. 26, Issue 1 [page]

1965 Automation and Remote Control  
Let us show that the plant being of non-minimum-phase is such an inherent property. Let G,(p) be the transfer function of an unstable, non-minimum-phase plant.  ...  As will be clear from what follows, the Fig. 1. constraints on the attainment of the system performance, imposed by the dynamics of the plant, are related to its instability and to its being of non-minimum-phase  ... 

Iterative learning control with advanced output data for nonlinear non-minimum phase systems

G.-M. Jeong, C.-H. Choi
2006 International Journal of Systems Science  
This paper investigates iterative learning control of nonlinear discrete time non-minimum phase systems in tracking problems.  ...  In the proposed method, the inverse system is stabilized using the input-to-output mapping for nonlinear non-minimum phase systems.  ...  This learning law can be applied to both minimum phase systems and non-minimum phase systems.  ... 
doi:10.1080/00207720601014222 fatcat:xuqcwpgfafc3hgvxfndbli2xl4

Robust Control for Non-Minimum Phase Systems with Actuator Faults: Application to Aircraft Longitudinal Flight Control

Aisha Sir Elkhatem, Seref Naci Engin, Amjad Ali Pasha, Mustafa Mutiur Rahman, Subramania Nadaraja Pillai
2021 Applied Sciences  
framework for the non-minimum phase pitch angle dynamics of Boeing 747 aircraft.  ...  The fractional-order integral pre-compensator is replaced by a fractional-order derivative pre-compensator in the proposed structure for comparison in terms of handling the non-minimum phase limitations  ...  The focal idea is based on converting non-minimum phase pitch angle dynamics into an approximate minimum phase system.  ... 
doi:10.3390/app112411705 fatcat:t6evrupmrbbgjpflot2e6crgvy

Control of a Rigid-Flexible Satellite Solar Panel with Non-collocated Sensor/Actuator

Luiz Carlos Gadelha de Souza
2015 Journal of Mechanics Engineering and Automation  
It shows the changes in the system dynamics and the appearance of zeroes in the right-plan complex, turning the system a non-minimum phase system.  ...  This paper presents a model and analysis for a flexible link with non-collocations of sensors and actuators.  ...  One considers a simple rigid-flexible satellite and analyse the behaviours of the zeroes when the system chance from minimum phase to non-minimum phase situation.  ... 
doi:10.17265/2159-5275/2015.03.006 fatcat:7cymyyslp5adxjvb6shvgu633a

Robust non-minimum-phase compensation for a class of uncertain dynamical systems

KUK-WHAN BYUN, BONG WIE, JOHN SUNKEL
1991 Journal of Guidance Control and Dynamics  
Specifications for a non-minimum- phase system should include phase restrictions since the magni- tude alone does not completely specify the time response of such a system.'’  ...  It is shown that, for a certain class of noncollocated structural control problems, use of either technique results in non-minimum-phase compensation. I.  ... 
doi:10.2514/3.20774 fatcat:avwypjo6kvcfjivwjqbqwxfa2e

Application of Fractional PID Controller to Single and Multi-Variable Non-Minimum Phase Systems

2019 International journal of recent technology and engineering  
Six different single variable plants were simulated covering different cases of non-minimum phase systems.  ...  In this paper, a fractional PID controller is designed for single and multi-variable non-minimum phase systems.  ...  In case of non-minimum phase systems, 2 ( ) , phase contribution is more than that of minimum phase systems 1 ( ).  ... 
doi:10.35940/ijrte.b2805.078219 fatcat:evemdz677vc33knm3yr7fvsrtu
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