2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)最新文献

{"title":"Genetic Algorithms for Solving Combinatorial Mass Balancing Problem","authors":"S. Yakovlev, Oleksii Kartashov, O. Pichugina, Kyryl Korobchynskyi","doi":"10.1109/UKRCON.2019.8879938","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879938","url":null,"abstract":"A problem of placing discretely distributed masses of objects on fixed locations minimizing the unbalance of the system is considered. The problem is formulated as Euclidean combinatorial optimization one on the permutation set induced by given masses. To solve this problem, original genetic algorithms are offered, for which approaches to a formation of crossover and mutation operators are described. The algorithms are tested on various problems of balancing discretely distributed masses, including those where the objects’ rotation is permitted.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114316088","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}

{"title":"Study Influence Industrial Frequency Magnetic Field On Capacitive Pressing Sensor for Large Turbogenerator Core Clamping System","authors":"I. Zaitsev, A. Levytskyi, B. Kromplyas, M. Panchyk, V. Bereznychenko","doi":"10.1109/UKRCON.2019.8879949","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879949","url":null,"abstract":"In this paper a present results of the experimental study of the influence of the magnetic field of the industrial frequency on the change in the value of the capacity of the core compression sensor was obtain. The sensor is designed for the development of new types of computerized meters of mechanical defects parameters of powerful generators that can operate under strong magnetic fields of industrial frequency. Designed special stand and used it for experimental research. The experimental results of the influence of the magnetic field of the industrial frequency on the elements of the core compression sensor are obtained. It has been established that the introduction of a core compression sensor into a magnetic field of industrial frequency with a magnitude of magnetic induction from 0.1 to 0.6 T changes the value of the measured capacitance to no more than 0.8%.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121486264","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}

{"title":"Ternary Bitwise Balancing Analog-to-Digital Converter","authors":"Petryshyn Mykhailo, V. Luzhetskyi","doi":"10.1109/UKRCON.2019.8879792","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879792","url":null,"abstract":"In this paper are offered a method, algorithms and structural scheme of ternary ADC with bitwise balancing conversion type in order from the less significant bit to the most significant bit. This method allows to accelerate the conversion process, when the input signal is changing in the narrow bands defined by the specifics of the information sources in the technological control systems. Applying the node to determine the difference between the feedback value from DAC and the input unknown value, which determines the occurrence of this value in the boundary of the unit quantum, allowed the finish of the conversion process with a smaller number of iterative balancing steps. Calculated the parameters of operational complexity of the proposed method.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114683675","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}

{"title":"[Copyright notice]","authors":"","doi":"10.1109/ukrcon.2019.8879777","DOIUrl":"https://doi.org/10.1109/ukrcon.2019.8879777","url":null,"abstract":"","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115908320","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}

{"title":"The Wavelet Based Detecting of the Signalling Relay Armature Defects","authors":"V. Havryliuk","doi":"10.1109/UKRCON.2019.8879960","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879960","url":null,"abstract":"The article deals with the problem of automatic detection defects of armature and contact springs in railway signalling relays. Signalling relays are currently basic components in train control systems that ensure train traffic safety and to ensure their reliable operation, the relays are periodically subjected to routine maintenance. Most of the tests for signalling relays are performed manually, which is time consuming and very expensive. For developing the automatic method for detecting and identifying the relay armature defects the investigations were performed with ten different types of neutral signalling relays. For each type of relay, several groups were formed, which consisted of three relays, in which one group contained fully serviceable and properly configured relays, while the other groups contained relays with some artificially created defects in the form of deformed contact springs or defects in the coil or magnetic core. To identify the features of the basic defects of relays, the time dependence of the transient currents were measured during relay switching on and off. Three segments are clearly distinguishable on the transient current curve: the first segment when the anchor is in the initial position and the magnetic circuit is open, the second one when the armature moves from the initial to the final position, and the third one when the anchor is picked up and the magnetic circuit is closed. In the first and third segments the current in the relay coil increases exponentially with time constants depending only on the impedances of the coil, which allows to use these time constants for detecting defects in the relay coil and magnetic circuit. In the second segment the current in the relay coil is determined by electromechanical processes that occur during the movement of the armature, which include magnetic, friction, deformation forces etc., and defects of moving components lead to a change in the shape of transient current curve and to appearance of some features in the form of sags and swells on it. Du to these features are small, using the wavelet decomposition of the transient current dependences for detecting defects of armature in signalling relays was proposed in the work. For prompt detection of all possible armature defects, to use the wavelet Shannon entropy as an integral parameter, the value of which strongly depends on the appearance of any order disturbances in the systems was also proposed in the work. The effectiveness of the proposed methods have been investigated and obtained results confirmed their effectiveness.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132355622","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}

{"title":"Interactive Training in English on Example of Course “Electronic Materials”","authors":"Y. Poplavko","doi":"10.1109/UKRCON.2019.8879820","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879820","url":null,"abstract":"The need to use English in modern technical education of students is obvious. In the process of interactive learning, students should be prepared for following actions: teamwork; activity in standpoint of perception, communication and sociality. Interactive training must be provided with highquality didactic material. In this case, we use our recently edited textbook for bachelors in electronics, approved and published in the USA in English, and several our textbooks for masters-level students published by us in English in Germany. Our English-language tutorials relate mainly to the field of materials used in electronic engineering.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130058466","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}

{"title":"Dielectric Wire Wrapped in Graphene Layer with a Slot as a Plasmonic Absorber of THz Waves","authors":"Sergii V. Dukhopelnykov, María García Vigueras, R. Sauleau","doi":"10.1109/UKRCON.2019.8879886","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879886","url":null,"abstract":"Considered is the scattering of an H-polarized plane wave by a dielectric wire with a graphene cover, which is shaped trip. We derive a hyper-singular integral equation for the electric current induced on the strip and discretize it using a Nystrom-type method. This provides the convergence of the algorithm that enables us to plot the dependences of the absorption cross-section (ACS) on the frequency, graphene strip angular width, and its orientation angle. We derive approximate characteristic equation for the frequencies of the plasmon modes as a function of the width of graphene strip. At the resonance frequencies, we control the maximum values of ACS by changing the orientation angle of the graphene strip.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134173635","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}

{"title":"Synchronous Balanced Control of Dual Split-Phase Drive Topology with PWM Diode-Clamped Inverters","authors":"V. Oleschuk, V. Ermuratskii, F. Barrero","doi":"10.1109/UKRCON.2019.8879980","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879980","url":null,"abstract":"Developed and modified control and modulation scheme, based on the application of the minimum number of voltage space vectors of four diode-clamped inverters, allows providing power balancing operation of asymmetrical six-phase (dual split-phase) system. Set of control and modulation functions includes in this case specialized equations connecting coefficients of modulation of inverters and amplitudes of dc-voltages. Algorithms of the developed space-vector modulation insure symmetry of basic voltages of split-phase installation with required power sharing for any frequency ratio between the switching frequency and fundamental frequency of each converter of installation with four diode-clamped inverters, supplied by dc sources with both equal and unequal dc-voltages. The proposed control and modulation concepts have been verified by numerical simulations.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130875269","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}

{"title":"About the Possibility of Researching the Optimal Automatic Control System on a Physical Model of a Thermal Object","authors":"Nikolay Tryputen, Vitaliy Kuznetsov, Y. Kuznetsova","doi":"10.1109/UKRCON.2019.8879830","DOIUrl":"https://doi.org/10.1109/UKRCON.2019.8879830","url":null,"abstract":"The article presents laboratory bench for research of the optimal and quasi-optimal automatic control system in the contest of its operation speed. Laboratory bench consists of thermal unit and software and hardware suite which includes VIPA System 200 V and HMI/SCADA logic controller and Zenon Supervisor 7.0 system. Thermal unit is described by differential equation of second order pursuing the control channel “amperage in electric heating unit power converter – air temperature inside thermal unit Differential equation coefficients depend on screen position and rotation frequency of centrifugal blower. The methodology of synthesis and results of calculation of optimal relay hypothesis for thermal unit control through the chosen channel has been approached. The results of experiment in transition of thermal unit from various initial states to final states have been demonstrated. The possibility of implementing optimal control system in respect of its operation speed in real time scale by means of software development by including algorithms for transcendence set of simultaneous equations into it or by means of development of predicative model of thermal unit has been shown.The conditions for application of quasi-optimal relay control hypothesis in respect of its operation speed have been specified. Methodology of synthesis and results of calculation of the length of the first control interval depending on the predetermined value of readjustment has been presented. The results of modeling of quasi-optimal automatic control system in respect of its operation speed in Simulink of Matlab app have been demonstrated. Functional relation of the length of the first control interval depending on the predetermined value of readjustment for implementing of quasi-optimal automatic control system in real time scale with application of basic operational units of programmed logic controller has been established.","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"601 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133432444","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}

{"title":"UKRCON 2019 Author Index","authors":"","doi":"10.1109/ukrcon.2019.8879954","DOIUrl":"https://doi.org/10.1109/ukrcon.2019.8879954","url":null,"abstract":"","PeriodicalId":211302,"journal":{"name":"2019 IEEE 2nd Ukraine Conference on Electrical and Computer Engineering (UKRCON)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124204173","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}