2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)最新文献

{"title":"Algorithms of Robustly Stable Systems for Synchronous Electric Drive in Field Weakening Mode","authors":"M. Buryk, M. Ostroverkhov, V. Boiko","doi":"10.1109/KhPIWeek53812.2021.9570074","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570074","url":null,"abstract":"Decomposing control algorithms for a robustly stable nonlinear interconnected vector control system for the speed of a synchronous motor are presented. The equation of algorithms is obtained in a closed form according to the classical models of Lagrange and Euler, which reflect the fundamental laws of dynamics. The presented results of mathematical modelling (transient processes of electromechanical coordinates of the system) illustrate that the nonlinear system has the properties of robust stability. The field weakening mode is used to limit the voltage of the inverter in the second zone, due to the known (reference) trajectory of the angular speed of the motor rotor and its first (limited) time derivative. The paper investigates how a reference trajectory of angular speed affects the dynamics of an adjustable synchronous electric drive in vector control.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114252663","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":"Photovoltaic Thermal PV/T systems: increasing efficiency method","authors":"K. Minakova, R. Zaitsev","doi":"10.1109/KhPIWeek53812.2021.9570090","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570090","url":null,"abstract":"The main aim of proposed research is to consider a method for increasing the efficiency and the lifetime of photovoltaic systems. This article briefly presents theoretical methods for increasing the efficiency of such systems, as well as increasing the service life, by simulating the cooling parameters of the absorber surface of such systems and tracking the maximum power. Modeling and the obtained theoretical model will allow in the future selecting the most suitable technical solutions to maximize the energy output of photovoltaic systems for various design solutions.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125292515","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":"Computational Modelling of Wind Turbine Lifetime","authors":"D. Krasii, O. Larin","doi":"10.1109/KhPIWeek53812.2021.9570028","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570028","url":null,"abstract":"The reliability of the bearing structure of a vertical wind turbine under the action of random load caused by wind is investigated in the article. The object of study is the effect of fatigue on the lifetime of the structure with the specified parameters. A parametric design model of the structure was constructed, in which the finite element method in a three-dimensional formulation was used to calculate the stress-strain state. The kinetic equation of damage accumulation in the probabilistic formulation was solved to determine the lifetime of the structure. The result of this work is a program that calculates the dependence of the resource of the structure on the weather conditions of the area, which determine the probabilistic parameters of the multicycle load. To see the impact of the weather, the work presented the results in two cities, graphs and tables were shown.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122833447","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":"Forecasting of RES Generation Indicators","authors":"V. Kalinchyk, Mariia Buravliova, Vitalii Pobihailo, O. Borychenko, V. Kalinchyk","doi":"10.1109/KhPIWeek53812.2021.9570019","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570019","url":null,"abstract":"The article investigates methods of forecasting in energy. It shows that forecasting in energy is one of the tasks of energy efficiency monitoring. It shows that forecasting in energy is one of the tasks of energy efficiency monitoring. Generation processes in the integrated power system (IPS) of Ukraine by various energy sources, both traditional and renewable, are analysed. It is shown that forecasting future values of a time series based on its historical values is the basis for financial planning, management and optimization of energy production and monitoring. Application of adaptive Holt - Winters models for forecasting generation indicators is substantiated. The results of forecasting electricity generation in the IPS of Ukraine by renewable energy sources (RES) according to the Holt - Winters model are presented.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127770653","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":"Forecasting of COVID-19 Epidemic Process by Support Vector Machine Method in Ukraine and Neighboring Countries","authors":"D. Chumachenko, T. Chumachenko, K. Bazilevych, I. Meniailov","doi":"10.1109/KhPIWeek53812.2021.9569968","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569968","url":null,"abstract":"The global pandemic has affected all areas of life. Scientifically based management decisions to reduce epidemic morbidity not only increase their efficiency, but also save costs aimed at eliminating the virus. For this, mathematical modeling of epidemic processes is used. The most accurate approach to predicting incidence is machine learning. To study and predict the dynamics of the infectious morbidity of COVID-19, a regression model was built based on the support vector machine. The following countries were selected to verify and check the adequacy of the model: Belarus, Hungary, Moldova, Poland, Romania, Russia, Slovakia and Ukraine. Forecasting in these countries allows us to study the impact of the epidemic of neighboring countries on the dynamics in Ukraine, as well as to determine the accuracy of the developed model.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132604104","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 Influence of Cross-Magnetic Saturation and Iron Losses on the Electromagnetic Characteristics of a Frequency-Regulated Synchronous Reactive Machine","authors":"V. Volkov","doi":"10.1109/KhPIWeek53812.2021.9570021","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570021","url":null,"abstract":"On the basis of experimental data on the change in the instantaneous values of the longitudinal and transverse inductances of a synchronous reluctance machine caused by cross-magnetic saturation, the electromagnetic characteristics of the machine were determined for its various methods of frequency control (linking the change in the stator flux linkage module, longitudinal and transverse projections of the stator current with the developed electromagnetic moment of the machine). Using these characteristics, a vector control system is proposed, in which the this saturation is taken into account and the effect of iron losses on the electromagnetic characteristics of the machine is compensated.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132187601","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":"Computation and Experimental Measurements of the Spatio-Temporal Characteristics of the Magnetic Field of Overhead Power Lines","authors":"B. Kuznetsov, I. Bovdui, T. Nikitina, V. Kolomiets, B. Kobylianskyi","doi":"10.1109/KhPIWeek53812.2021.9569990","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569990","url":null,"abstract":"The method for computation and experimentally measurements of the spatio-temporal characteristics of the magnetic field of overhead power lines is developed. The spatio-temporal characteristics of the magnetic field generated by the power transmission line, compensating windings of systems of active screening and the resulting magnetic field generated by the power transmission line and compensating winding have been calculated. It has been experimentally measured the spatio-temporal characteristic of the magnetic field with strongly and weak polarized. It is shown, that the experimentally measured spatio-temporal characteristics differ from the calculated values by no more than 10 %.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"12 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134071654","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":"Scientific Research on Biomedical Engineering in Ukraine: Origins of Development","authors":"E. Tverytnykova, M. Gutnyk, H. Salata, N. Bachynska","doi":"10.1109/KhPIWeek53812.2021.9570029","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570029","url":null,"abstract":"The formation of scientific research in the field of biotechnology in Ukraine has been studied. It is proved that almost immediately after the discovery of X-rays by Conrad Roentgen the research on its practical application began in Ukrainian research centers. The role of Professor George De-Metz in the study of the effects of these rays on various living and lifeless objects was outlined; studying the natural radioactivity of living organisms and the effect of ionizing radiation on living creatures were shown. Experimental studies with X-rays were conducted by Professor of Physics of the Kharkiv Institute of Technology Oleksandr Pogorelko. He proved the practical significance of a new phenomenon for medicine, i.e. the use of X-rays to diagnose of different diseases. Research in the field of radiography was conducted by Mykola Pylchykov, which contributed to the creation, on his initiative, of the first Ukrainian institution of X-ray studies in Odessa. The use of ultrahigh frequencies for the treatment of patients with oncology, conducted by Academician Abram Slutskin in the Department of Biophysics, Ukrainian Institute of Experimental Medicine was highlighted. This department was established in 1933 by a scientist at the suggestion of his colleague, the head of the Department of Physiology of Kharkiv University Vasyl Danylevsky. Under the guidance of Corresponding Member Semen Tetelbaum, groundbreaking researches on the use of ultrasound for diagnosis were conducted. The created device for diagnosing of kidney stones, liver, the location of the tumor in the early stages, heart disease, was differed from similar of foreign samples by greater ease of use and reliability in operation. It was found that research in the field of biomedical engineering of the second half of the XX century developed in the cooperation with representatives of the medical industry of technical institutions of higher education. The achievements of the Department of “Department of Industrial and Biomedical Electronics” of NTU “KhPI” in the direction of biomedical electronics and the discovery of a new phenomenon of piezobiosynthesis in biological tissues, contributed to the improvement of cancer diagnosis.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115447132","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/khpiweek53812.2021.9569978","DOIUrl":"https://doi.org/10.1109/khpiweek53812.2021.9569978","url":null,"abstract":"","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114413986","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":"Balancing electricity generation and consumption in a system with renewable energy sources","authors":"P. Lezhniuk, O. Buslavets, O. Rubanenko","doi":"10.1109/KhPIWeek53812.2021.9570087","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570087","url":null,"abstract":"This article deals with the features of the development of renewable energy sources (RES) in electrical networks. The preconditions of the problem of maneuvered generation are analyzed and possible ways of their solution are investigated. The optimal composition of electricity generation is proposed. A comprehensive approach to compensating for the instability of RES generation has been developed, which is to minimize the cost of power redundancy in various available ways. The optimal values of the capacities of each method of redundancy and the total cost are determined by criterion programming and the influence of each method of redundancy on the total cost using the theory of sensitivity.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122905465","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}