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Filters
Robust flat filtering DSP based control of the boost converter
2016
Control Theory and Technology
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Flat filtering is a natural robust version of generalized proportional integral control (GPIC) by which the effects of arbitrary time varying exogenous disturbances, unknown endogenous nonlinearities and ...
The article deals with the design and implementation of a flat filter tracking digital controller for a boost DC-DC power converter. ...
In robust flat filtering controls we only respect the system order, treat nonlinearities as unknown time signals that can be significantly attenuated by a linear classical compensation network including ...
doi:10.1007/s11768-016-6025-6
fatcat:qsfql4ptzfbmlli3txqxqjseqa
Robust Linear Control of Nonlinear Flat Systems
[chapter]
2011
Robust Control, Theory and Applications
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Robust Linear Control of Nonlinear Flat Systems, Robust Control, Theory and Applications, Prof. ...
additive disturbances.
467 Robust Linear Control of Nonlinear Flat Systems θ X 1 Fig. 3 . ...
doi:10.5772/14228
fatcat:a64ztt6t5fbd3m5lrboroillae
Flatness-based control of an hydro power plant
2010
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference
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This paper presents a robust control law based on the nonlinear flatness for the speed governor of hydraulic turbine control system participating to power-frequency control. ...
Comparison of this nonlinear structure with a linear PI feedforward controller gives better results : lower overshoot and less sensitive with process variations. ...
Here is the motivation of a nonlinear governor.
IV. FLATNESS OF THE SYSTEM
A. Definition Flatness is a propriety of some systems discovered by Fliess and al. [4] . ...
doi:10.1109/melcon.2010.5476253
fatcat:xiknomvi5bfqjlcjh4f6kanbqy
A Comparative Study of Nonlinear MPC and Differential-Flatness-Based Control for Quadrotor Agile Flight
[article]
2024
arXiv
pre-print
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2022 pre-print arXiv:2109.01365v5 fatcat:aun2miwryrcsxk47qerlnsyp7eOther Versions
In this article, we empirically compare two state-of-the-art control frameworks: the nonlinear-model-predictive controller (NMPC) and the differential-flatness-based controller (DFBC), by tracking a wide ...
The comparisons are performed in both simulation and real-world environments to systematically evaluate both methods from the aspect of tracking accuracy, robustness, and computational efficiency. ...
A seminal work [25] reveals that quadrotors are differentially flat systems. ...
arXiv:2109.01365v6
fatcat:muofx3uyynfw3iljrfchcsn4je
Nonlinear multiscale filtering
2002
IEEE Signal Processing Magazine
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I would like to thank Yan Huang for writing the code which was used to generate some of the examples in this article. ...
Acknowledgments This work was supported in part by a National Science Foundation CAREER award CCR-0093105 and startup funds from Purdue Research Foundation. ...
The Perona-Malik Equation The interpretation of a linear scale-space as a solution to a PDE (3) or (4) resulted in a very interesting approach to the design of new, nonlinear, filters. ...
doi:10.1109/msp.2002.1028350
fatcat:eas23mxxw5eflehmvtxb2rehye
Control of an industrial polymerization reactor using flatness
2002
Journal of Process Control
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This is the first industrial process-controller to use the so-called flatness property of the system, which is presented here in a concise and application oriented manner. ...
The aim of this paper is to report the design and use of a controller for the world's largest polypropylene reactor. ...
of flat systems [3, 4] is that it suffices to control the flat outputs to control the whole system. ...
doi:10.1016/s0959-1524(01)00049-x
fatcat:doymjmr62raitbqqltvduyiv7a
Observer-based tracking control for single machine infinite bus system via flatness theory
2021
International Journal of Power Electronics and Drive Systems (IJPEDS)
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According to the flatness-based control strategy, first we show that the adopted nominal SMIB model is a flat system. ...
The results show that the clearing critical time of the introduced methodology is larger than the classical control approaches and the proposed observer-based flatness controller exhibits over much less ...
ACKNOWLEDGEMENT The authors would like to thank Dr. Mohammed Benmiloud for his preliminary work on the topic during his stay at Ecole Centrale de Nantes. ...
doi:10.11591/ijece.v11i2.pp1186-1199
fatcat:7aaltb2efnfzfj3ov53qr5vwxe
Trajectory tracking control for a Boost converter based on the differential flatness property
2019
IEEE Access
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The proposed approach exploits the differential flatness property of the system leading to a control strategy whose benefits include a simple derivation based on the parameterization of the control input ...
INDEX TERMS Control design, DC-DC power converters, differential flatness, nonlinear control systems, trajectory tracking task. ...
The flat filter constitutes a reinterpretation of the classical compensation networks for linear systems. ...
doi:10.1109/access.2019.2916472
fatcat:ogfrc45awjgcdmmfmzxrvud4p4
Robust state estimation for flat systems using set-membership techniques
2011
IFAC Proceedings Volumes
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The first approach is based on a fundamental property of flat systems which states that the state of the system can be written as a function of the so-called flat outputs and their derivatives up to some ...
Robust state estimation for a subclass of nonlinear systems is considered in this paper through a comparison of two methodologies. ...
This paper presents two different approaches for robust state estimation of flat systems: Constraint Satisfaction based approach and Closed Loop Interval Observer. ...
doi:10.3182/20110828-6-it-1002.01922
fatcat:3rwbvfase5es3izb4wadmtcory
Control of the Toycopter Using a Flat Approximation
2008
IEEE Transactions on Control Systems Technology
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Its particularities reside first in the fact that the toycopter motion is constrained to remain on a sphere and second in the use of a variable rotational speed of the propellers to vary the propeller ...
A complete model using Lagrangian mechanics is derived. The Toycopter is shown to be nondifferentially flat. ...
A detailed modeling approach and the design of a nonlinear controller that uses a flat approximation based on physical insight have been presented. ...
doi:10.1109/tcst.2007.916333
fatcat:mwczavibzzeebnjsrm2z5hr3vi
Sensorless Robust Flatness-Based Control with Nonlinear Observer for Non-Ideal Parallel DC-AC Inverters
2022
IEEE Access
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Therefore, the flatness-based control approach is preferable for the nonlinear controllers which are devoted to the control of the parallel DC/AC inverters [31] . ...
Fuzzy Logic Control Flatness Control Type of control Linear nonlinear Artificial intelligent Nonlinear Control suitability Low-order system All types of systems All type of system All types of systems ...
doi:10.1109/access.2022.3175847
fatcat:gsci7vjbazaohir6oqkqoibave
Combining Interval Analysis with Flatness Theory for State Estimation of Sailboat Robots
2012
Mathematics in Computer Science
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Two testcases related to the state estimation of a sailboat robot are proposed to illustrate the principle and the efficiency of the approach. ...
This paper proposes a new set-membership state estimator for estimating the state vector of a nonlinear dynamic robot. ...
The resulting state estimator has several advantages over classical approaches. • The state estimator is reliable with respect to nonlinearities. ...
doi:10.1007/s11786-012-0130-9
fatcat:is7ttpxls5g4bktn4oy3lb2osm
Time-varying controller based on flatness for nonlinear anti-lock brake system
2013
Systems Science & Control Engineering
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The proposed approach is illustrated with the control of nonlinear model of an anti-lock brake system. ...
It is shown that by the use of flatness the problem of pole placement, which consists in imposing closed-loop system dynamics, can be related to track desired trajectories in the finite-dimensional linear ...
when the system to be controlled is nonlinear and the problem is approached by linearizing this system around a desired trajectory which leads to an LTV model. ...
doi:10.1080/21642583.2013.857619
fatcat:ahqlnwiqnrawnassft7dklkou4
Vehicle Sideslip Angle Estimation Based on Hybrid Kalman Filter
2016
Mathematical Problems in Engineering
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This paper presents a new hybrid Kalman filter to estimate vehicle sideslip angle based on the 3-DoF nonlinear vehicle dynamic model combined with Magic Formula tire model. ...
Vehicle sideslip angle is essential for active safety control systems. ...
Acknowledgments This work is supported by National Natural Science Foundation of China (Grant no. 51275206). ...
doi:10.1155/2016/3269142
fatcat:tzkxzlzoabeafodtkvzizrsu3e
Coupled nonlinear vehicle control: Flatness-based setting with algebraic estimation techniques
2014
Control Engineering Practice
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It combines the control of the lateral and longitudinal motions in order to track straight or curved trajectories and to perform a combined lane-keeping and steering control during critical driving situations ...
A combined nonlinear longitudinal and lateral vehicle control is investigated. ...
A Lie-Bäcklund approach to equivalence and flatness of nonlinear systems, IEEE Transactions on Automatic Control, 44, 922-937. Fuchshumer, S., Schlacher, K., Rittenschober, T., 2005 . ...
doi:10.1016/j.conengprac.2013.09.013
fatcat:iu6sikggonaf7cxvynoni5zcua
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