Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916343
Olha Kozina, Mykyta Kozin
The development of multi-cloud systems with an acceptable level of service delays that significantly affect the quality of the end-users experience is an open research problem, for which simulation is successfully used. This paper proposes a simulation model in Matlab for estimating the time to write data updates initiated by the end-users to the databases of all cloud service providers for a multi-cloud system with a geo-distributed middleware that implements, as an example, the VIP-grab data consistency protocol. The simulation results indicate that our model can be useful in choosing a data consistency protocol that influences the architecture of a multicloud system.
{"title":"Simulation Model of Data Consistency Protocol for Multicloud Systems","authors":"Olha Kozina, Mykyta Kozin","doi":"10.1109/KhPIWeek57572.2022.9916343","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916343","url":null,"abstract":"The development of multi-cloud systems with an acceptable level of service delays that significantly affect the quality of the end-users experience is an open research problem, for which simulation is successfully used. This paper proposes a simulation model in Matlab for estimating the time to write data updates initiated by the end-users to the databases of all cloud service providers for a multi-cloud system with a geo-distributed middleware that implements, as an example, the VIP-grab data consistency protocol. The simulation results indicate that our model can be useful in choosing a data consistency protocol that influences the architecture of a multicloud system.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"37 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115628714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916340
A. Silvestrov, M. Ostroverkhov, Liudmyla Spinul, A.N. Serdyuk, Maxim Falchenko
The multi-step process of structural-parametric identification of mathematical models of control objects according to the principle of rational complication is considered. Identification specifies the mathematical model of the object and methods of its identification in the process of accumulation of a posteriori information. The quality of multi-step structural and parametric identification of an object depends on the amount of a priori information that grows after conducting experimental studies. For a qualitative solution to the problem, it is necessary to rationally complicate identification methods after analyzing the results of the previous identification step. Examples of application of the proposed principle of rational complication are given, which show its advantages in comparison with classical methods.
{"title":"Structural and Parametric Identification of Mathematical Models of Control Objects Based on the Principle of Rational Complication","authors":"A. Silvestrov, M. Ostroverkhov, Liudmyla Spinul, A.N. Serdyuk, Maxim Falchenko","doi":"10.1109/KhPIWeek57572.2022.9916340","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916340","url":null,"abstract":"The multi-step process of structural-parametric identification of mathematical models of control objects according to the principle of rational complication is considered. Identification specifies the mathematical model of the object and methods of its identification in the process of accumulation of a posteriori information. The quality of multi-step structural and parametric identification of an object depends on the amount of a priori information that grows after conducting experimental studies. For a qualitative solution to the problem, it is necessary to rationally complicate identification methods after analyzing the results of the previous identification step. Examples of application of the proposed principle of rational complication are given, which show its advantages in comparison with classical methods.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124756208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916349
N. Fomenko, O. Larin
Viscoelastic deformation cycles of human blood vessels under normal functioning conditions were studied. Atherosclerotic plaque with stochastic development was also taken into account in the modeling. A computer simulation algorithm has been developed to perform parametric analysis for models with different geometrical dimensions. The study was carried out in a two-dimensional formulation based on the finite element method.
{"title":"Computational analysis of viscoelastic deformation of human blood vessels with a plaque of statistically predicted size","authors":"N. Fomenko, O. Larin","doi":"10.1109/KhPIWeek57572.2022.9916349","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916349","url":null,"abstract":"Viscoelastic deformation cycles of human blood vessels under normal functioning conditions were studied. Atherosclerotic plaque with stochastic development was also taken into account in the modeling. A computer simulation algorithm has been developed to perform parametric analysis for models with different geometrical dimensions. The study was carried out in a two-dimensional formulation based on the finite element method.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124817345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916357
Huthaifa Al Issa, M. Qawaqzeh, Vladyslav Kolomiec, O. Miroshnyk, O. Moroz, O. Savchenko, Andriy Pavlov, V. Pazyi, D. Danylchenko, O. Iegorov, S. Halko, R. Buinyi
The criteria for selecting the optimal type of Wavelet analysis are analyzed to increase the accuracy of identification of non-sinusoidal voltage distortions, because this technique can determine the amplitude, frequency and time (duration) of the presence of harmonics in current and voltage signals. This information will be useful in assessing the technical and economic effect of the introduction of filter-compensating devices to determine the harmonics and reduce losses.
{"title":"Analysis Ways of Improving the Accuracy of Identification of Non-sinusoidal Voltages and Currents Distortion by Means of Wavelet Analysis","authors":"Huthaifa Al Issa, M. Qawaqzeh, Vladyslav Kolomiec, O. Miroshnyk, O. Moroz, O. Savchenko, Andriy Pavlov, V. Pazyi, D. Danylchenko, O. Iegorov, S. Halko, R. Buinyi","doi":"10.1109/KhPIWeek57572.2022.9916357","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916357","url":null,"abstract":"The criteria for selecting the optimal type of Wavelet analysis are analyzed to increase the accuracy of identification of non-sinusoidal voltage distortions, because this technique can determine the amplitude, frequency and time (duration) of the presence of harmonics in current and voltage signals. This information will be useful in assessing the technical and economic effect of the introduction of filter-compensating devices to determine the harmonics and reduce losses.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124936884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916383
O. Vietrov, R. Bilous
The study of the problem of numerical stability in the calculation of two well-known examples gained further development. The authors demonstrated how the joint use of traditional mathematical methods of increasing the accuracy of calculations together with the methods of special Python libraries allow in a simple way to significantly increase the accuracy of computer calculations in cases where numerical stability is of a fundamental nature.
{"title":"Special methods of increasing the accuracy of computer calculations","authors":"O. Vietrov, R. Bilous","doi":"10.1109/KhPIWeek57572.2022.9916383","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916383","url":null,"abstract":"The study of the problem of numerical stability in the calculation of two well-known examples gained further development. The authors demonstrated how the joint use of traditional mathematical methods of increasing the accuracy of calculations together with the methods of special Python libraries allow in a simple way to significantly increase the accuracy of computer calculations in cases where numerical stability is of a fundamental nature.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123055647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916475
R. Puzyr, D. Savielov, Olha Dolhikh, Yuliya Sira, Viktoriya Kulynych, Maryna Baikova
It is shown that electrical cable systems used in mining areas experience heavy loads from their own weight, and can also be subjected to mechanical damage as a result of shifting rock layers. This leads to emergency situations at mining enterprises, which threatens the maintenance personnel lives. To compensate for tensile stresses leading to wire breakage, extension sleeves of various designs are installed on the cables. A study was made of loading schemes for sleeve flat and shell elongating elements, which showed that the shell element is a more effective component. Due to the calculation and selection the element cylindrical stiffness and of the meridian inclination angle to the symmetry axis, the best elongation effect can be achieved.
{"title":"Theoretical Study of the Extending Electric Cable Operation","authors":"R. Puzyr, D. Savielov, Olha Dolhikh, Yuliya Sira, Viktoriya Kulynych, Maryna Baikova","doi":"10.1109/KhPIWeek57572.2022.9916475","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916475","url":null,"abstract":"It is shown that electrical cable systems used in mining areas experience heavy loads from their own weight, and can also be subjected to mechanical damage as a result of shifting rock layers. This leads to emergency situations at mining enterprises, which threatens the maintenance personnel lives. To compensate for tensile stresses leading to wire breakage, extension sleeves of various designs are installed on the cables. A study was made of loading schemes for sleeve flat and shell elongating elements, which showed that the shell element is a more effective component. Due to the calculation and selection the element cylindrical stiffness and of the meridian inclination angle to the symmetry axis, the best elongation effect can be achieved.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125209716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916323
N. Kuchuk, M. Mozhaiev, Yevhen Kalinin, V. Davydov, Oleksandr Mozhaev, Heorhii Kuchuk
An analysis of the signaling systems used in the Intelligent Communication Network has been carried out. The main probabilistic characteristics of signal information delay are determined. A method for calculating these characteristics for such error correction methods is proposed: basic error control method and preventive cyclical control method. The analysis of the delay of signal units from loading the signal network is carried out. Simple formulas are proposed for approximating the load applied to the signaling link.
{"title":"Calculation of Signal Information Delay in Intelligent Communication Networks","authors":"N. Kuchuk, M. Mozhaiev, Yevhen Kalinin, V. Davydov, Oleksandr Mozhaev, Heorhii Kuchuk","doi":"10.1109/KhPIWeek57572.2022.9916323","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916323","url":null,"abstract":"An analysis of the signaling systems used in the Intelligent Communication Network has been carried out. The main probabilistic characteristics of signal information delay are determined. A method for calculating these characteristics for such error correction methods is proposed: basic error control method and preventive cyclical control method. The analysis of the delay of signal units from loading the signal network is carried out. Simple formulas are proposed for approximating the load applied to the signaling link.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125895146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916456
Oleksiy Kuznyetsov, Vitalii Atamaniuk
PWM-controlled power stage under several conditions are prone to the coexistence of several stable modes for the same set of parameters. For the majority of applications, it is an undesired behavior; the other modes apart from the “nominal” one are characterized by lower efficiency and should be avoided. We propose a control aiming to suppress the coexisting undesired modes by utilizing periodic sinusoidal modulation of a reference signal. We study the efficacy of the proposed control strategy for different modulation strength levels with a chopper-fed DC drive as the case example of a PWM-driven system exhibiting multistability. The study is performed by means of numerical simulations in the time domain and bifurcation diagrams. The possible pitfalls and features of the proposed control are demonstrated.
{"title":"Suppressing Undesired Periodic Modes in a PWM-Controlled DC Drive by Sinusoidal Modulation of a Reference Signal","authors":"Oleksiy Kuznyetsov, Vitalii Atamaniuk","doi":"10.1109/KhPIWeek57572.2022.9916456","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916456","url":null,"abstract":"PWM-controlled power stage under several conditions are prone to the coexistence of several stable modes for the same set of parameters. For the majority of applications, it is an undesired behavior; the other modes apart from the “nominal” one are characterized by lower efficiency and should be avoided. We propose a control aiming to suppress the coexisting undesired modes by utilizing periodic sinusoidal modulation of a reference signal. We study the efficacy of the proposed control strategy for different modulation strength levels with a chopper-fed DC drive as the case example of a PWM-driven system exhibiting multistability. The study is performed by means of numerical simulations in the time domain and bifurcation diagrams. The possible pitfalls and features of the proposed control are demonstrated.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128064773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916422
S. Vladov, Yurii Shmelov, Ruslan Yakovliev
This work is devoted to the improvement of the automatic control system of helicopters turboshaft engines through the introduction of a block of signal adaptation of engine parameters into it using a modified method of searchless identification. The implementation of the proposed solutions is carried out using the NEWFF multilayer neural network, which made it possible to significantly reduce the maximum absolute error compared to the least squares method.
{"title":"Modified Searchless Method for Identification of Helicopters Turboshaft Engines at Flight Modes Using Neural Networks","authors":"S. Vladov, Yurii Shmelov, Ruslan Yakovliev","doi":"10.1109/KhPIWeek57572.2022.9916422","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916422","url":null,"abstract":"This work is devoted to the improvement of the automatic control system of helicopters turboshaft engines through the introduction of a block of signal adaptation of engine parameters into it using a modified method of searchless identification. The implementation of the proposed solutions is carried out using the NEWFF multilayer neural network, which made it possible to significantly reduce the maximum absolute error compared to the least squares method.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124983500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-03DOI: 10.1109/KhPIWeek57572.2022.9916391
M. Kotsur, D. Yarymbash, Yu.S. Bezverkhnia, I. Kotsur
Shop floor power supply systems must meet stringent requirements for high reliability and efficiency. Trolley's busbars are an important element of the power supply system. Currently, engineering methods are known that allow to determine the resistance of trolleys. But they have a high error, since they do not take into account the surface effect, skin effect, proximity effects, edge effects, as well as the higher harmonics of the current in the network. In this paper, an approach is proposed that allows to determine the resistance in the trolley's busbars with high accuracy. This method is based on the application of the decomposition of electromagnetic processes in a trolley's busbars. The method implements the inclusion of one of the phases of the busbar to determine the resistance without the influence of an external magnetic field. As well as two phases of the busbar to determine the active resistance in the presence of an external magnetic field caused by the action of a third-party current of the neighboring trolley's busbars. The paper presents dependences for determining the values of resistance for the corresponding phases and harmonics of the current without spending time on field modeling. And also, regardless of the location of the trolleys, their number, shape, as well as the non-symmetry of the phase currents.
{"title":"Increasing the Accuracy of Determining the Resistance of Three-Phase Busbar's Trolleys","authors":"M. Kotsur, D. Yarymbash, Yu.S. Bezverkhnia, I. Kotsur","doi":"10.1109/KhPIWeek57572.2022.9916391","DOIUrl":"https://doi.org/10.1109/KhPIWeek57572.2022.9916391","url":null,"abstract":"Shop floor power supply systems must meet stringent requirements for high reliability and efficiency. Trolley's busbars are an important element of the power supply system. Currently, engineering methods are known that allow to determine the resistance of trolleys. But they have a high error, since they do not take into account the surface effect, skin effect, proximity effects, edge effects, as well as the higher harmonics of the current in the network. In this paper, an approach is proposed that allows to determine the resistance in the trolley's busbars with high accuracy. This method is based on the application of the decomposition of electromagnetic processes in a trolley's busbars. The method implements the inclusion of one of the phases of the busbar to determine the resistance without the influence of an external magnetic field. As well as two phases of the busbar to determine the active resistance in the presence of an external magnetic field caused by the action of a third-party current of the neighboring trolley's busbars. The paper presents dependences for determining the values of resistance for the corresponding phases and harmonics of the current without spending time on field modeling. And also, regardless of the location of the trolleys, their number, shape, as well as the non-symmetry of the phase currents.","PeriodicalId":197096,"journal":{"name":"2022 IEEE 3rd KhPI Week on Advanced Technology (KhPIWeek)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121939017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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