Fault-tolerant control of a reverse osmosis plant based on MPC with lexicographic multiobjective optimization

Miksch, T.; Gambier, Adrián; Badreddin, Essameddin

doi:10.1109/cca.2010.5611193

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…Control theory benefits a lot from LMO optimization and found many fruitful applications over the years. Miksch and Gambier (2011) convert a multi-objective quadratic program for fault-tolerant control into a linear lexicographic one leveraging the l 1 norm and a preemptive scheme. Other works on lexicographic model predictive control are (Vada et al 2001a, b).…”

Section: A Brief Review Of Pure Lexicographic Optimizationmentioning

confidence: 99%

Pure and mixed lexicographic-paretian many-objective optimization: state of the art

et al. 2022

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This work aims at reviewing the state of the art of the field of lexicographic multi/many-objective optimization. The discussion starts with a review of the literature, emphasizing the numerous application in the real life and the recent burst received by the advent of new computational frameworks which work well in such contexts, e.g., Grossone Methodology. Then the focus shifts on a new class of problems proposed and studied for the first time only recently: the priority-levels mixed-pareto-lexicographic multi-objective-problems (PL-MPL-MOPs). This class of programs preserves the original preference ordering of pure many-objective lexicographic optimization, but instantiates it over multi-objective problems rather than scalar ones. Interestingly, PL-MPL-MOPs seem to be very well qualified for modeling real world tasks, such as the design of either secure or fast vehicles. The work also describes the implementation of an evolutionary algorithm able to solve PL-MPL-MOPs, and reports its performance when compared against other popular optimizers.

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Section: A Brief Review Of Pure Lexicographic Optimizationmentioning

confidence: 99%

Pure and mixed lexicographic-paretian many-objective optimization: state of the art

et al. 2022

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“…Fault-tolerant control (e.g., see [164,165]) is a concept whose origin goes back to the birth of safe critical systems, which are not allowed to fail, e.g., an aircraft. Nowadays, the idea has been extended to other kinds of systems, including wind turbines (see [166] for review).…”

Section: Pitch Actuators With Fault-tolerant Controlmentioning

confidence: 99%

Pitch Control of Three Bladed Large Wind Energy Converters—A Review

Gambier

2021

Energies

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Modern multi-megawatt wind turbines are currently designed as pitch-regulated machines, i.e., machines that use the rotation of the blades (pitching) in order to adjust the aerodynamic torque, such that the power is maintained constantly throughout a wide range of wind speeds when they exceed the design value (rated wind speed). Thus, pitch control is essential for optimal performance. However, the pitching activity is not for free. It introduces vibrations to the tower and blades and generates fatigue loads. Hence, pitch control requires a compromise between wind turbine performance and safety. In the past two decades, many approaches have been proposed to achieve different objectives and to overcome the problems of a wind energy converter using pitch control. The present work summarizes control strategies for problem of wind turbines, which are solved by using different approaches of pitch control. The emphasis is placed on the bibliographic information, but the merits and demerits of the approaches are also included in the presentation of the topics. Finally, very large wind turbines have to simultaneously satisfy several control objectives. Thus, approaches like collective and individual pitch control, tower and blade damping control, and pitch actuator control must coexist in an integrated control system.

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“…It is assumed that the faults occur at 0 The fault scenario considered in this paper is the reduction in the actuator region [14]. The post-fault actuator region is assumed to be:…”

Section: Simulationmentioning

confidence: 99%

Comparing the Performance of Reference Trajectory Management and Controller Reconfiguration in Attitude Fault Tolerant Control

2018

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Abstract.Reference trajectory management is a method to modify reference trajectories for the faulty system. The modified reference trajectories define new maneuvers for the system to retain its pre-fault dynamic performance. Controller reconfiguration is another method to handle faults in the system, for instance by adjusting the controller parameters (coefficients). Both of these two methods have been considered in the literature and are proven to be capable of handling various faults. However, the comparison of these two methods has not been considered sufficiently. In this paper, a controller reconfiguration mechanism and a reference trajectory management are proposed for the spacecraft attitude fault tolerant control problem. Then, these two methods are compared under the same conditions, and it is shown that the proposed controller reconfiguration has better performance than the proposed reference trajectory management. The reason is that the controller reconfiguration has more variables to modify the closed-loop system behavior.

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Fault-tolerant control of a reverse osmosis plant based on MPC with lexicographic multiobjective optimization

Cited by 3 publications

References 18 publications

Pure and mixed lexicographic-paretian many-objective optimization: state of the art

Pure and mixed lexicographic-paretian many-objective optimization: state of the art

Pitch Control of Three Bladed Large Wind Energy Converters—A Review

Comparing the Performance of Reference Trajectory Management and Controller Reconfiguration in Attitude Fault Tolerant Control

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