Development of structural-parametric optimization method in systems with continuous feeding of technological products

Lutsenko, Igor; Koval, Svetlana; Oksanych, Iryna; Serdiuk, Olga; Kolomits, Hanna

doi:10.15587/1729-4061.2018.136609

Cited by 7 publications

(5 citation statements)

References 13 publications

(19 reference statements)

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“…The use of a multi-section technological mechanism, proposed in [1,2], makes it possible to take as a basis the assessment of the operation of systems with a portioned supply of a technological product and improve the proposed approach. Thus, a continuous technological process undergoes short-portion processing with the number of sections depending on the specificity of the process.…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

“…However, with the advent of the possibility of increasing the number of degrees of freedom of control over technological mechanisms, it became possible for technological processes to work with a parallel change in control trajectories under the dynamically changing external environmental conditions [1,2]. That made it possible to make adjustments to the production process in real time [3].…”

Section: Introductionmentioning

confidence: 99%

“…Studies of the levels of blood oxygenation (saturation), that is, the percentage of oxygen saturation of hemoglobin, became increasingly active as a result of the coronavirus pandemic (COVID-19). The first stage of this viral disease is characterized by «latent hypoxia» due to insufficient oxyge nation of the patient's blood [1][2][3]. Hypoxia, or lack of oxygen, can be almost unnoticeable for saturation levels close to 90 % and below.…”

Section: Introductionmentioning

confidence: 99%

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Cybernetic estimation of reserve utilization efficiency

Lutsenko

2021

EEJET

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This study relates to the field of verification of cybernetic estimates of the use of reserves as criteria for the effectiveness of transformative class systems with a continuous supply of a technological product. The task set here attracted even more attention after the advent of improved approaches that make it possible to automatically change the control trajectories of technological systems in real time. In such cases, the assessment of the current status of the process and the efficiency of stock management has become an integral part of the operation of the management subsystems. Therefore, the development and verification of cybernetic assessment of effectiveness for such control systems is a relevant issue. The first stage of the reported research involved the development of a cybernetic model of operation with distributed parameters. Four formal features have been proposed. Finding integral functions of these features has made it possible to obtain an idea of some quantitative characteristics of the process while finding the second time-dependent integral characteristic has made it possible to represent the physical and cybernetic parameters of the process. At the second stage, formulas for calculating the main assessment indicators were proposed; their verification was carried out under three different control trajectories, which showed the adequacy of the devised approach. The final step was to develop three variations of the efficiency formula, which is calculated at set points in time throughout the entire production cycle. Thus, cybernetic assessment of the effectiveness of the use of reserves makes it possible to formalize and fully automate the processes of optimization and adaptation of the functional systems of an enterprise

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Section: The Study Materials and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cybernetic estimation of reserve utilization efficiency

Lutsenko

2021

EEJET

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“…It was in work [11] that the method of structural-parametric optimization in systems with a continuous supply of technological products from the technological subsystem was described. The sectional-modular model of the dynamic technological system, which provides independent stabilization of the qualitative parameter of the technological product, was also described in detail.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…However, all of them [4][5][6][7][8][9][10] are aimed at optimizing existing control trajectories, rather than creating a new, more accurate trajectory. In [11], only the improved operation of technological subsystems was presented, which does not reveal the whole idea of an innovative approach to the optimization of transformative class systems with a continuous supply of a technological product.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Developing interactive interaction of dual buffering systems and conversion class systems with continuous supply of technological products

Lutsenko

Koval

Tytiuk

2021

EEJET

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Many modern industrial production facilities consist of sequentially operating systems with a continuous supply of technological product. The task of stabilizing the qualitative and quantitative parameters of output products at all stages of such production is a very difficult task and often leads to additional time and money costs. Therefore, improving the efficiency of these processes is a relevant issue. A review of analogous solutions to this type of problem revealed the variability of their authors’ approaches. However, all of them are aimed at optimizing existing control trajectories, rather than creating a new, more accurate trajectory. Earlier, as part of the description of the basic principles of structural and parametric optimization of the management of production processes of this type, only the improved work of technological subsystems was reported. This paper describes the principles of control over the proposed dual buffering system and its interactive interaction with other technological subsystems. The introduction of buffering systems makes sequential technological subsystems more independent of each other. That makes it possible to increase the degree of freedom for each control subsystem and thereby improve the efficiency of finding the optimal mode of operation of the entire cybernetic system. A conceptual model of the dual buffering system was built, the stabilization of the quantitative parameter at the output of the buffering system was substantiated through the development of an adaptation mechanism, and simulation modeling of the synthesized system was carried out. The study shows that the use of buffering systems could improve the quality of energy utilization and reduce the wear of technological mechanisms by 14 % in general

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Adaptive control of ore mill charge

et al. 2019

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The system of mining operations does not enable long-lasting mining of single-type ores that causes instability of mineral materials intended for concentration. To solve the problem of controlling these processes on the basis of operating data on characteristics of processed raw materials, the method of controlling mill charge is suggested considering measurements of its output product. This method is based on correlation of the output product quantity and the rate of the mill charge. The process of the object’s operation is modeled, while time characteristics of the output controlled value and the mill charge are approximated to assess accuracy of the method of determining the mill charge. The possibility to use the discrete Kalman filter is studied in order to indentify the object’s characteristics under noises by measurement results. It is shown that application of the Kalman filter to controlling the mill charge enables not only solving the problem of filtration aimed to obtain data on the object’s current state, but also predicting its state.

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Development of structural-parametric optimization method in systems with continuous feeding of technological products

Cited by 7 publications

References 13 publications

Cybernetic estimation of reserve utilization efficiency

Cybernetic estimation of reserve utilization efficiency

Developing interactive interaction of dual buffering systems and conversion class systems with continuous supply of technological products

Adaptive control of ore mill charge

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