Dynamic Delayed Controllers for Unstable Recycling Systems with Time Delays

Guerra, R. J. Vazquez; Rubio, J. F. Marquez; Del-Muro-Cuellar, Basilio; Sánchez, García

doi:10.24846/v25i2y201607

Cited by 3 publications

(6 citation statements)

References 17 publications

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“…Using (13) and 14 α α plane is divided into several regions, and stability of (10) can be tested by choosing a point inside a region and using any classical method, such as Nyquist or Bode criterion.…”

Section: A Stability Region In 1mentioning

confidence: 99%

“…α α are calculated using (13) and (14), which are in turn derived using characteristic function given by The stability region for this sub-problem is shown in Fig. 4.…”

Section: Examplementioning

confidence: 99%

“…Time delay inherently exists in many physical systems such as chemical, mechanical and hydraulic systems [3], [22] and [24]. Therefore, it is natural that the above line of research was extended to time delay systems, see [1], [2], [8], [9], [10], [11], [13], [14], [28] and [33]. This paper aims at proposing a method to design stabilizing lead-lag controllers for time delay systems.…”

Section: Introductionmentioning

confidence: 99%

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Lead-lag Controller Design for Time Delay Systems Using Genetic Algorithms

Hassen¹,

Saadaoui²,

Benrejeb³

2017

SIC

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In this article, the set of all stabilizing lead-lag controllers applied to a class of linear time delay systems is obtained. The original problem is divided into two sub-problems with the help of Kharitonov's Lemma. This essential step allows the application of the D-decomposition method and the determination of the complete set of stability regions. In the second part of this paper, stability regions are used as search space for Genetic Algorithms (GA) to minimize several performance indices of the closed loop system. An example is given to show the effectiveness of the proposed controller design.

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Section: A Stability Region In 1mentioning

confidence: 99%

“…α α are calculated using (13) and (14), which are in turn derived using characteristic function given by The stability region for this sub-problem is shown in Fig. 4.…”

Section: Examplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lead-lag Controller Design for Time Delay Systems Using Genetic Algorithms

Hassen¹,

Saadaoui²,

Benrejeb³

2017

SIC

View full text Add to dashboard Cite

show abstract

“…As shown in the flowchart of Figure 1, this model is coupled to the timed automata (TA). TA [7,8,35], commonly used in the field of discrete event systems [9,10,36], allows to take into account the temporal aspects and to follow the dynamic evolution of the system as well as the propagation effects of the defects. The diagnoser built by automaton can refine the location of the fault [11].…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of hybrid systems through bond graph, observers and timed automata

Mhamdi¹,

Achbi²,

Dhouibi³

et al. 2020

Diagnostyka

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Despite technological advances and progress in industrial systems, the fault diagnosis of a system remains a very important task. In fact an effective diagnosis contributes not only to improved reliability but also to a decrease in maintenance costs. This paper presents an approach to a diagnosis of hybrid systems thanks to the use of Bond Graphs, Observer and Timed Automata. Dynamic models (in normal and failing mode) are generated by an observer based methods as well as through state equations generated by the Bond Graphs model. The procedure of fault localization through a method based on the observer does not allow locating faults with the same signature of failure. Thus the diagnosis technique for the localization of these defects will be based on the time analysis using Timed Automata. The proposed approach is then validated by simulation tests in a two tanks hydraulic system.

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“…Moreover, using visual data as a feedback signal induces time delay which corresponding to time for image acquisition, image processing, and visual data transmission [9,21]. It is worth mentioning that the time delay is the main cause of system instability [5,13,10].…”

Section: Introductionmentioning

confidence: 99%

Compensation of Unknown Time Delay Measurement for Network Visual Servoing System Using Observation Design

Mohammed¹,

Wang²,

Tian³

2018

STUD INFORM CONTROL

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In this paper, the sampled and delayed measurements subject to measurement noise are studied under the condition of the time delay being bounded, unknown, and time varying. The proposed observer is called "continuous state observer" and, based on the piecewise continuous hybrid system and on the extended functional observer, is derived to reconstruct the continuous system state without time delay from sampled and delayed measurements subject to measurement noise. The proposed observer has advantages which are represented by simple structure design and robust performance of the measurement noise. Another advantage of the proposed observer is that it considers the time delayed measurement to be a particular disturbance induced by the vision sensor. Moreover, the effectiveness of the continuous state observer is compared with the Chain observer over appropriate example, and the comparison results are established.

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Dynamic Delayed Controllers for Unstable Recycling Systems with Time Delays

Cited by 3 publications

References 17 publications

Lead-lag Controller Design for Time Delay Systems Using Genetic Algorithms

Lead-lag Controller Design for Time Delay Systems Using Genetic Algorithms

Diagnosis of hybrid systems through bond graph, observers and timed automata

Compensation of Unknown Time Delay Measurement for Network Visual Servoing System Using Observation Design

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