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On The Design and Characteristics of a Sub-Optimal Observer for Boeing-747

Wasiullah Khan, Muhammad Kamran Sheeren, Naeem Khan
2018 Mehran University Research Journal of Engineering and Technology  
For stability of observer, bound on rate of parameter variation is imposed. For simulation purpose, a real life case study of Boeing-747 is adopted.  ...  In this paper, an observer based on RKF (Routine KalmanFiltering) scheme and LQR (Linear Quadratic Regulator) is employed for a set of linear parameter variations.  ...  The LPV model is taken from [18] and the state and gain matrices are scheduled by using an interpolation method. For stability of observer, bound on rate of parameter variation is imposed.  ... 
doi:10.22581/muet1982.1802.03 fatcat:khp2w3fjcbdore6xc3dk3skdvi

A vibroacoustic application of modeling and control of linear parameter-varying systems

Jan De Caigny, Juan Francisco Camino, Ricardo C L F de Oliveira, Pedro Luis D Peres, Jan Swevers
2010 Journal of the Brazilian Society of Mechanical Sciences and Engineering  
Using the obtained LPV model, gain-scheduled and robust multiobjective H 2 /H ∞ state feedback controllers are designed such that can consider a priori known bounds on the rate of parameter variation.  ...  Based on experimental data, an LPV model is derived for this system using the State-space Model Interpolation of Local Estimates (SMILE) technique.  ...  Acknowledgements The authors would like to thank the Vibroacoustic Lab at the University of Campinas (UNICAMP) for providing the experimental data used in the paper. The authors R. C. L. F.  ... 
doi:10.1590/s1678-58782010000400002 fatcat:sinzmtegsrdvvi5xxxrgoelula

Explicit LPV-MPC with Bounded Rate of Parameter Variation

Thomas Besselmann, Johan Löfberg, Manfred Morari
2009 IFAC Proceedings Volumes  
In this paper the explicit LPV-MPC scheme is extended to incorporate limits on the rate of parameter variation in the controller design.  ...  Recently it was shown how one can reformulate the MPC problem for LPV systems to a series of mpLPs by a closed-loop minimax MPC algorithm based on dynamic programming.  ...  In Bemporad et al. [2003] , the computation of explicit control laws was extended to linear discrete-time systems with parametric uncertainty, i.e., when the parameter is bounded, but unknown.  ... 
doi:10.3182/20090616-3-il-2002.00002 fatcat:tf5sfowdsbbmbg7xqo6a7fiz3u

Gain-scheduled H∞-control of discrete-time polytopic time-varying systems

Jan De Caigny, Juan F. Camino, Ricardo C. L. F. Oliveira, Pedro L. D. Peres, Jan Swevers
2008 2008 47th IEEE Conference on Decision and Control  
This paper presents synthesis procedures for the design of both robust and gain-scheduled H ∞ static output feedback controllers for discrete-time linear systems with timevarying parameters.  ...  The parameters are assumed to vary inside a polytope and have known bounds on their rate of variation.  ...  polytope with a prescribed bound on the rate of variation.  ... 
doi:10.1109/cdc.2008.4739200 dblp:conf/cdc/CaignyCOPS08 fatcat:gfw22agkcfgutpbycyhfdl57ga

Comparative assessment of LPV-based predictive control strategies for a pasteurization plant

Fatemeh Karimi Pour, Vicenc Puig, Carlos Ocampo-Martinez
2017 2017 4th International Conference on Control, Decision and Information Technologies (CoDIT)  
The last approach uses a Robust MPC controller for taking parameter variations of the LPV model into account.  ...  This paper presents a comparative study of three different approaches to design Model Predictive Control (MPC) strategies for a pasteurization plant using Linear Parameter Varying (LPV) models.  ...  Finally, in the last approach, by bounding the parameter variations with the operating point and considering this variation as model uncertainty, a robust MPC controller is designed.  ... 
doi:10.1109/codit.2017.8102696 dblp:conf/codit/PourPO17 fatcat:h4f6q7tonjeqbcuug2367wmgci

Linear Parameter Varying Control Synthesis for the atmospheric phase VEGA launcher

D. Navarro-Tapia, A. Marcos, S. Bennani, C. Roux
2018 IFAC-PapersOnLine  
Full terms of use are available: Abstract: This article presents the design of the atmospheric control system of a launch vehicle using the Linear Parameter Varying (LPV) synthesis technique.  ...  In this paper, a grid-based LPV approach is applied to the actual VEGA VV05 mission data for the joint design of the rigid-body controller and the flexible bending filter in one single design procedure  ...  A LPV model captures the time-varying behaviour of the system based on a defined scheduling parameter.  ... 
doi:10.1016/j.ifacol.2018.11.166 fatcat:lt5tjzroh5d2ldwhtssosm234m

Observer-based Predictive Control of Nonlinear Clutchless Automated Manual Transmission for Pure Electric Vehicles: an LPV Approach

Mohammad Saeid Akbari, Mohammad Hassan Asemani, Navid Vafamand, Saleh Mobayen, Afef Fekih
2021 IEEE Access  
Moreover, by the means of sampler and zero-order-hold (ZOH), the discrete-time LPV-MPC is merged with continuous-time LPV-observer to construct the overall observer-based controller.  ...  The second contribution is assuring the stability of the closed-loop system with hybrid continuous-and discrete-time systems.  ...  To make the developed approach accurate, the continuoustime (discrete-time) LPV-observer (LPV-MPC) was designed offline (online).  ... 
doi:10.1109/access.2021.3054370 fatcat:kcv5l6nmfvbonosx664il6punm

Diagnosis of Icing and Actuator Faults in UAVs Using LPV Unknown Input Observers

Damiano Rotondo, Andrea Cristofaro, Tor Arne Johansen, Fatiha Nejjari, Vicenç Puig
2017 Journal of Intelligent and Robotic Systems  
This paper proposes a discrete-time linear parameter varying (LPV) unknown input observer (UIO) for the diagnosis of actuator faults and ice accretion in unmanned aerial vehicles (UAVs).  ...  The LPV formulation has the advantage of allowing the icing diagnosis scheme to be consistent with a wide range of operating conditions.  ...  Then, the LPV UIO matrices are designed such that different output directions of the residuals are assigned for the unknown inputs acting on the system.  ... 
doi:10.1007/s10846-017-0716-1 fatcat:mv7jxc4cyvhg7pjr2eqdhifsa4

Real-time Fault Estimation for a Class of Discrete-Time Linear Parameter-Varying Systems [article]

Chris van der Ploeg, Emilia Silvas, Nathan van de Wouw, Peyman Mohajerin Esfahani
2021 arXiv   pre-print
To address this challenge, this article proposes a novel filter to estimate multiple fault signals for a class of discrete-time linear parameter-varying (LPV) systems.  ...  The method is illustrated and validated on an automated vehicle's lateral dynamics, which is a practically relevant example for LPV systems.  ...  The class of linear parameter-varying (LPV) systems is often considered in the scope of fault detection and estimation and is particularly suitable for treating non-linear systems with parameter variations  ... 
arXiv:2104.11789v4 fatcat:r6so5q2ylngjhkz3fza4yzlaiq

Vapor Compression Cycle Control for Automotive Air Conditioning Systems with a Linear Parameter Varying Approach [article]

Xu Zhang
2019 arXiv   pre-print
Stemming from a recently developed first-principle A/C model, Jacobian linearization is first exploited to develop an LPV-based model that is nonlinearly dependent on time-varying system parameters such  ...  This paper investigates an output tracking problem for the vapor compression cycle in automotive Air Conditioning (A/C) systems using Linear Parameter Varying (LPV) techniques.  ...  An alternative method is to incorporate the variation rate of the scheduling parameter, namely the evaporator pressure, into the design process of the LPV controller.  ... 
arXiv:1701.03785v3 fatcat:p3xzhjgtvzdhhaqghcwnvyjbuu

Scaled Small-Gain Approach to Robust Control of LPV Systems with Uncertain Varying Delay [article]

Shahin Tasoujian, Saeed Salavati, Karolos Grigoriadis, Matthew Franchek
2020 arXiv   pre-print
By considering explicit bounds on the delay rate and time-varying delay uncertainty, the scaled small-gain theorem is adopted to form an interconnected time-delay LPV system with input and output vectors  ...  Linear parameter-varying (LPV) systems with uncertainty in time-varying delays are subject to performance degradation and instability.  ...  LPV system with an uncertain varying time-delay in the presence of parameter variations, delay uncertainties, and disturbances, and • Minimization of the worst case amplification of the desired output  ... 
arXiv:2004.04282v1 fatcat:7pdtwn56y5bkxomk35y7aas5re

Robust fault detection based on adaptive threshold generation using interval LPV observers

Saúl Montes de Oca, Vicenç Puig, Joaquim Blesa
2011 International Journal of Adaptive Control and Signal Processing  
In this paper, robust fault detection based on adaptive threshold generation of a non-linear system described by means of a linear parameter-varying (LPV) model is addressed.  ...  Adaptive threshold is generated using an interval LPV observer that generates a band of predicted outputs taking into account the parameter uncertainties bounded using intervals.  ...  ACKNOWLEDGEMENTS This work has been partially funded by the grant CICYT HYFA DPI2008-01996 and WATMAN DPI2009-13744 of Spanish Ministry of Education and by a grant from Consejo Nacional de Ciencia y Tecnologia  ... 
doi:10.1002/acs.1263 fatcat:6zojvvij6jfyvnohcdqcnclnt4

Gain-Scheduled H∞-Control for Discrete-Time Polytopic LPV Systems Using Homogeneous Polynomially Parameter-Dependent Lyapunov Functions

Jan De Caigny, Juan F. Camino, Ricardo C.L.F. Oliveira, Pedro L.D. Peres, Jan Swevers
2009 IFAC Proceedings Volumes  
This paper presents H ∞ performance analysis and control synthesis for discrete-time linear systems with time-varying parameters.  ...  The parameters are assumed to vary inside a polytope and have known bounds on their rate of variation.  ...  The scientific responsibility rests with its author(s).  ... 
doi:10.3182/20090616-3-il-2002.00004 fatcat:dnwlfo6jyvbahahj7lga4geshi

Actuator fault estimation based adaptive polytopic observer for a class of LPV descriptor systems

M. Rodrigues, H. Hamdi, D. Theilliol, C. Mechmeche, N. BenHadj Braiek
2014 International Journal of Robust and Nonlinear Control  
This paper presents an Adaptive Polytopic Observer (APO) design in order to develop an actuator fault estimation method dedicated to polytopic Linear Parameter Varying (LPV) descriptor systems.  ...  This paper extends a Fault Diagnosis (FD) method developed for regular LTI systems to polytopic LPV descriptor systems.  ...  Similar result is found in [29] for linear parameter-varying (LPV) systems the presented method is based on multi-objective H − /H ∞ fault detection observer design.  ... 
doi:10.1002/rnc.3236 fatcat:xygthllv7fbbxefalgx5tqzbsa

Lower-Order $H_{\infty} $ Filter Design for Bilinear Systems With Bounded Inputs

Edo Abraham, Eric C. Kerrigan
2015 IEEE Transactions on Signal Processing  
Motivated by this problem, we will investigate the design of estimators for bilinear systems with bounded inputs. The literature on full-order H 2 and H ∞ filters for linear systems is vast.  ...  These systems arise in a variety of modelling processes, including the discretization of certain partial differential equations with boundary actions or the bilinearization of some nonlinear systems, within  ...  Linear parameter-varying systems LPV systems can be defined as a subset of systems described by the LDI of (5), where the time variations in the system matrices depend on an exogenous parameter δ (t) that  ... 
doi:10.1109/tsp.2014.2385656 fatcat:o26e222tdncsvas7dxbj7mbsfq
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