Pub Date : 2020-06-01DOI: 10.1109/EDM49804.2020.9153540
P. Zhikharev, N. Shwartz
Simulation of GaSb crystal formation on silicon substrate according to solid phase epitaxy was carried out using a kinetic lattice Monte Carlo model. Dependence of nanocrystal morphology and density was demonstrated to be dependent on gallium/antimony flux ration and on Si(Ill) substrate pretreatment. Formation of liquid gallium droplets on the surface during annealing stage is predicted by simulation. For GaSb crystal formation6 it was necessary either a noticeable excess of the deposited antimony flux over the gallium flux at the first stage of solid phase epitaxy, or preliminary deposition of antimony on the silicon substrate.
{"title":"Monte Carlo Simulation of GaSb Cluster Formation on Si(111) substrate","authors":"P. Zhikharev, N. Shwartz","doi":"10.1109/EDM49804.2020.9153540","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153540","url":null,"abstract":"Simulation of GaSb crystal formation on silicon substrate according to solid phase epitaxy was carried out using a kinetic lattice Monte Carlo model. Dependence of nanocrystal morphology and density was demonstrated to be dependent on gallium/antimony flux ration and on Si(Ill) substrate pretreatment. Formation of liquid gallium droplets on the surface during annealing stage is predicted by simulation. For GaSb crystal formation6 it was necessary either a noticeable excess of the deposited antimony flux over the gallium flux at the first stage of solid phase epitaxy, or preliminary deposition of antimony on the silicon substrate.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117298336","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153507
Muhammad Saqib, Yubin Xu, S. A. Aljasar, Natzina Juanita, Nadine Suzanne
The main objective of the study is the experimental determination of switching characteristics of the vacuum interrupter phases, which is a crucial part of the high voltage vacuum circuit breaker. Experimental imitative testing is a better method of testing high voltage vacuum circuit breakers. New imitative testing scheme (Vale-Dobker) is designed to test each phase of the vacuum circuit breakers (VCB) in different ranges of high voltage to achieve maximum performance. Experimental study reveals that the Vale-Dobker scheme is better than others. A new imitative method for testing the vacuum circuit breaker has been presented. To determine its switching characteristics, the imitative test circuit by Vale-Dobker was applied, forming on the test object a fault current ranging from 1 to 10 kA and a transient recovery voltage across the contacts of the vacuum chamber up to 20 kV. The results confirm that the imitative controlled switching testing can suppress the current and overvoltage, thus fundamentally improving the efficiency and system safety.
{"title":"Investigation of Experimental Imitative Testing of Vacuum Circuit Breaker","authors":"Muhammad Saqib, Yubin Xu, S. A. Aljasar, Natzina Juanita, Nadine Suzanne","doi":"10.1109/EDM49804.2020.9153507","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153507","url":null,"abstract":"The main objective of the study is the experimental determination of switching characteristics of the vacuum interrupter phases, which is a crucial part of the high voltage vacuum circuit breaker. Experimental imitative testing is a better method of testing high voltage vacuum circuit breakers. New imitative testing scheme (Vale-Dobker) is designed to test each phase of the vacuum circuit breakers (VCB) in different ranges of high voltage to achieve maximum performance. Experimental study reveals that the Vale-Dobker scheme is better than others. A new imitative method for testing the vacuum circuit breaker has been presented. To determine its switching characteristics, the imitative test circuit by Vale-Dobker was applied, forming on the test object a fault current ranging from 1 to 10 kA and a transient recovery voltage across the contacts of the vacuum chamber up to 20 kV. The results confirm that the imitative controlled switching testing can suppress the current and overvoltage, thus fundamentally improving the efficiency and system safety.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115463150","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 : 2020-06-01DOI: 10.1109/edm49804.2020.9153528
{"title":"EDM 2020 TOC","authors":"","doi":"10.1109/edm49804.2020.9153528","DOIUrl":"https://doi.org/10.1109/edm49804.2020.9153528","url":null,"abstract":"","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123361724","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153489
D. B. Sultanov, A. Vorob’ev, A. F. Buldygin, A. Toropov
In the work, the microwave response in the magnetoresistance of rolled nanomembranes with a twodimensional electron gas is investigated. A strong damping of the Shubnikov-de Haas oscillations was observed in such objects in the ballistic transport mode under the influence of microwave radiation. The degree of oscillation damping depends on the power of the microwave radiation.
{"title":"Microwave Induced Damping of the Shubnikov-de Haas Oscillations in Rolled Nanomembrane in Ballistic Transport Mode","authors":"D. B. Sultanov, A. Vorob’ev, A. F. Buldygin, A. Toropov","doi":"10.1109/EDM49804.2020.9153489","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153489","url":null,"abstract":"In the work, the microwave response in the magnetoresistance of rolled nanomembranes with a twodimensional electron gas is investigated. A strong damping of the Shubnikov-de Haas oscillations was observed in such objects in the ballistic transport mode under the influence of microwave radiation. The degree of oscillation damping depends on the power of the microwave radiation.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116336670","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153492
A. Elgebaly, D. I. Panfilov, R. N. Krasnoperov
This paper studies the control algorithm of conventional PI and Fuzzy logic like PI controller for voltage control using discrete reactive power compensators. The binary thyristor switched capacitor BTSC is introduced as discrete reactive power compensator. The PI controller parameters are determined according to the power system parameters by considering both of fast and stability during voltage control using BTSC. Fuzzy logic like PI controller is designed to control BTSC using the fuzzy rules estimates the actual system performance. The performance of the designed control systems is analyzed for normal and uncertainty modes.
{"title":"Control Algorithms of Discrete Reactive Power Compensators with PI and Fuzzy Logic Controllers","authors":"A. Elgebaly, D. I. Panfilov, R. N. Krasnoperov","doi":"10.1109/EDM49804.2020.9153492","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153492","url":null,"abstract":"This paper studies the control algorithm of conventional PI and Fuzzy logic like PI controller for voltage control using discrete reactive power compensators. The binary thyristor switched capacitor BTSC is introduced as discrete reactive power compensator. The PI controller parameters are determined according to the power system parameters by considering both of fast and stability during voltage control using BTSC. Fuzzy logic like PI controller is designed to control BTSC using the fuzzy rules estimates the actual system performance. The performance of the designed control systems is analyzed for normal and uncertainty modes.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126091782","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153524
Michael Yu. Yesin, A. Nikiforov, A. Deryabin, V. Timofeev
In this paper, the motion of steps SA and SB on the Si(100) surface in the process of Si Molecular beam epitaxy (MBE) is explored. The study was carried out by means of the reflection intensity dependence behavior analysis of reflection high-energy electron diffraction (RHEED) corresponding to the (2×1) and (1×2) reconstructions. Superstructural rearrangement from a two-domain to a single-domain surface is associated with the bilayer step formation, which occurs due to the different motion rates of the steps SA and SB. Based on the research conducted, the conditions under which the step doubling occurs were determined. A behavior analysis of the diffraction reflection intensity dependences showed that an increasing of preliminary annealing time and temperature facilitates to the faster convergence of the steps SA and SB, but to the slower recovery of the initial surface. The presented experimental results indicate that step movement rate difference depends on the step A edge kink density.
{"title":"Influence of the Preliminary Annealing Conditions on Step Motion at the Homoepitaxy on the Si(100) Surface","authors":"Michael Yu. Yesin, A. Nikiforov, A. Deryabin, V. Timofeev","doi":"10.1109/EDM49804.2020.9153524","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153524","url":null,"abstract":"In this paper, the motion of steps SA and SB on the Si(100) surface in the process of Si Molecular beam epitaxy (MBE) is explored. The study was carried out by means of the reflection intensity dependence behavior analysis of reflection high-energy electron diffraction (RHEED) corresponding to the (2×1) and (1×2) reconstructions. Superstructural rearrangement from a two-domain to a single-domain surface is associated with the bilayer step formation, which occurs due to the different motion rates of the steps SA and SB. Based on the research conducted, the conditions under which the step doubling occurs were determined. A behavior analysis of the diffraction reflection intensity dependences showed that an increasing of preliminary annealing time and temperature facilitates to the faster convergence of the steps SA and SB, but to the slower recovery of the initial surface. The presented experimental results indicate that step movement rate difference depends on the step A edge kink density.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130478471","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 : 2020-06-01DOI: 10.1109/edm49804.2020.9153337
{"title":"EDM 2020 Committees","authors":"","doi":"10.1109/edm49804.2020.9153337","DOIUrl":"https://doi.org/10.1109/edm49804.2020.9153337","url":null,"abstract":"","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130735520","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153502
M. Samoylichenko
The paper considers the technique for improving the protection against an ultrashort pulse with the help of a modal filter made by cutting a passive conductor in the reference plane of a microstrip line. The influence of the asymmetry of the cross section on the difference between the mode delays and the amplitudes of the decomposition pulses is studied. The decomposition of the first and second pulses, which merged at symmetry, is achieved. The appearance of additional pulses was revealed. It is shown that the delays of additional pulses are determined by a linear combination of the per-unit-length delays of the line multiplied by its length. The influence of boundary conditions at the ends of a passive conductor with an asymmetric structure is investigated. The appearance of additional pulses was detected, the amplitude of which is greater than the amplitude of the pulses of three main modes. The optimum value of separation between the conductors is obtained, which gives the attenuation by 10.4 times.
{"title":"Additional Pulses in the Time Response of a Modal Filter with a Passive Conductor in the Reference Plane Cutout","authors":"M. Samoylichenko","doi":"10.1109/EDM49804.2020.9153502","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153502","url":null,"abstract":"The paper considers the technique for improving the protection against an ultrashort pulse with the help of a modal filter made by cutting a passive conductor in the reference plane of a microstrip line. The influence of the asymmetry of the cross section on the difference between the mode delays and the amplitudes of the decomposition pulses is studied. The decomposition of the first and second pulses, which merged at symmetry, is achieved. The appearance of additional pulses was revealed. It is shown that the delays of additional pulses are determined by a linear combination of the per-unit-length delays of the line multiplied by its length. The influence of boundary conditions at the ends of a passive conductor with an asymmetric structure is investigated. The appearance of additional pulses was detected, the amplitude of which is greater than the amplitude of the pulses of three main modes. The optimum value of separation between the conductors is obtained, which gives the attenuation by 10.4 times.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130787142","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153531
D. I. Panfilov, I. I. Zhuravlev, M. I. Petrov, A. Elgebaly
This paper studies the application of the thyristor-based AC voltage regulator for induction motors and reactive power compensation. The proposed AC voltage regulator is a multifunctional device that can regulate the AC voltage with zero harmonic content and, therefore, high power quality. The device can control the voltage of the three-phase loads for any phase individually. In this paper, the thyristor-based AC voltage regulator is used to control the stating process of 3-phase induction motor. Moreover, the regulator is used to balance the voltage on IM terminals supplied from unbalanced supply network which leads to enhance the performance and efficiency of such motors. Furthermore, the power electronics circuitry of such regulator is modified to enable it to work as reactive power compensator by adding capacitive element.
{"title":"Multifunction AC Voltage Regulator for Connecting an Induction Motor to Alternating Power Supply","authors":"D. I. Panfilov, I. I. Zhuravlev, M. I. Petrov, A. Elgebaly","doi":"10.1109/EDM49804.2020.9153531","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153531","url":null,"abstract":"This paper studies the application of the thyristor-based AC voltage regulator for induction motors and reactive power compensation. The proposed AC voltage regulator is a multifunctional device that can regulate the AC voltage with zero harmonic content and, therefore, high power quality. The device can control the voltage of the three-phase loads for any phase individually. In this paper, the thyristor-based AC voltage regulator is used to control the stating process of 3-phase induction motor. Moreover, the regulator is used to balance the voltage on IM terminals supplied from unbalanced supply network which leads to enhance the performance and efficiency of such motors. Furthermore, the power electronics circuitry of such regulator is modified to enable it to work as reactive power compensator by adding capacitive element.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129365360","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 : 2020-06-01DOI: 10.1109/EDM49804.2020.9153544
Olga E. Paul, E. S. Kucher
Adaptive field-oriented vector control systems of induction motors are of the great interest for two reasons. Firstly, there is a wide range of induction motor drives applications. Secondly, induction motors are known to be non-stationary control objects. The main issue of this paper is to synthesize the control system, which is not sensitive for the signal and parameter disturbances. This issue is achieved by closing the speed control loop and rotor flux linkage control loop through the special dynamic subsystems. These subsystems are so-called «disturbances observer» and total disturbances estimation «adaptor». Meanwhile, the system is required to allow decoupling the control channels of rotor speed and rotor flux linkage. The method of signal-adaptive inverse model is chosen for synthesis. The method makes it possible to control the induction motor with the desirable performance indices of transient process and compensation of different disturbances influence. The results are proved by computer simulation of developed induction motor field-oriented control system.
{"title":"Synthesis of Induction Motor Adaptive Field-Oriented Control System with the Method of Signal-Adaptive Inverse Model","authors":"Olga E. Paul, E. S. Kucher","doi":"10.1109/EDM49804.2020.9153544","DOIUrl":"https://doi.org/10.1109/EDM49804.2020.9153544","url":null,"abstract":"Adaptive field-oriented vector control systems of induction motors are of the great interest for two reasons. Firstly, there is a wide range of induction motor drives applications. Secondly, induction motors are known to be non-stationary control objects. The main issue of this paper is to synthesize the control system, which is not sensitive for the signal and parameter disturbances. This issue is achieved by closing the speed control loop and rotor flux linkage control loop through the special dynamic subsystems. These subsystems are so-called «disturbances observer» and total disturbances estimation «adaptor». Meanwhile, the system is required to allow decoupling the control channels of rotor speed and rotor flux linkage. The method of signal-adaptive inverse model is chosen for synthesis. The method makes it possible to control the induction motor with the desirable performance indices of transient process and compensation of different disturbances influence. The results are proved by computer simulation of developed induction motor field-oriented control system.","PeriodicalId":147681,"journal":{"name":"2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128580565","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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