Pub Date : 2022-06-02DOI: 10.23939/jcpee2022.01.007
M. Dyvak, A. Melnyk, A. Pukas, L. Dostálek
The problem of building a mathematical model of the dynamics of nitrogen dioxide concentrations at different parts of the city is considered in the paper. The peculiarities of the construction of such models on the basis of periodic measurement of concentrations of harmful substances and identification on the basis of the measurements obtained are considered. This paper also proposes an ontological approach as a control tool that greatly simplifies the systematic standardized methods of the models storage, the process of their construction and appropriate usage in practice. The use of the ontological model allows formalizing the process of obtaining, storing and using relevant knowledge and is suitable for more intelligent systems, such as identification of obviously erroneous solutions based on the model, predictive control of the model, optimization of the decision-making process based on knowledge and modeling of an appropriate technological flow chart. This paper also describes the features of the construction of the corresponding ontological model, the pattern of choice of a nonlinear model with "switching" to different conditions. Relevant experimental studies have also been conducted to confirm the effectiveness of the proposed approach.
{"title":"Control of mathematical modeling process of dynamics of harmful substances concentrations on the basis of ontological approach","authors":"M. Dyvak, A. Melnyk, A. Pukas, L. Dostálek","doi":"10.23939/jcpee2022.01.007","DOIUrl":"https://doi.org/10.23939/jcpee2022.01.007","url":null,"abstract":"The problem of building a mathematical model of the dynamics of nitrogen dioxide concentrations at different parts of the city is considered in the paper. The peculiarities of the construction of such models on the basis of periodic measurement of concentrations of harmful substances and identification on the basis of the measurements obtained are considered. This paper also proposes an ontological approach as a control tool that greatly simplifies the systematic standardized methods of the models storage, the process of their construction and appropriate usage in practice. The use of the ontological model allows formalizing the process of obtaining, storing and using relevant knowledge and is suitable for more intelligent systems, such as identification of obviously erroneous solutions based on the model, predictive control of the model, optimization of the decision-making process based on knowledge and modeling of an appropriate technological flow chart. This paper also describes the features of the construction of the corresponding ontological model, the pattern of choice of a nonlinear model with \"switching\" to different conditions. Relevant experimental studies have also been conducted to confirm the effectiveness of the proposed approach.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122868975","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 : 2022-06-02DOI: 10.23939/jcpee2022.01.037
O. Malyk, I. Petrovych, H. Kenyo
In the presented work, the method of determining the energy spectrum, the wave function of the heavy hole and the crystal potential in CdTe at an arbitrarily given temperature is considered. Using this approach within the framework of the supercell method the temperature dependences of the ionization energies of various types of defects caused by the introduction of copper impurity in cadmium telluride are calculated. Also the proposed method makes it possible to define the temperature dependence of the optical and acoustic deformation potentials, as well as the temperature dependence of the scattering parameters of heavy holes on ionized impurities, polar optical, piezooptical and piezoacoustic phonons. Within the framework of short-range scattering models, the temperature dependences of the heavy hole mobility and Hall factor are considered.
{"title":"Transport phenomena in copper doped cadmium telluride: calculation from the first principles","authors":"O. Malyk, I. Petrovych, H. Kenyo","doi":"10.23939/jcpee2022.01.037","DOIUrl":"https://doi.org/10.23939/jcpee2022.01.037","url":null,"abstract":"In the presented work, the method of determining the energy spectrum, the wave function of the heavy hole and the crystal potential in CdTe at an arbitrarily given temperature is considered. Using this approach within the framework of the supercell method the temperature dependences of the ionization energies of various types of defects caused by the introduction of copper impurity in cadmium telluride are calculated. Also the proposed method makes it possible to define the temperature dependence of the optical and acoustic deformation potentials, as well as the temperature dependence of the scattering parameters of heavy holes on ionized impurities, polar optical, piezooptical and piezoacoustic phonons. Within the framework of short-range scattering models, the temperature dependences of the heavy hole mobility and Hall factor are considered.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132755507","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 : 2022-06-02DOI: 10.23939/jcpee2022.01.030
V. Maksymych, R. Shvets, F. Ivashchyshyn
The work is devoted to the current problem of finding new ways and mechanisms of high-density electric energy accumulation. As a result of the conducted researches the system which allows to accumulate an electric charge at the expense of quantum effects and the phenomena without use of chemical reactions is offered. The basic idea was to form a material with a colossal area of the inner active surface with a sharply anisotropic chemical bonding character. Accordingly, the main goal was to create and study electrode materials based on intercalant heterophase structures with different types of hierarchy, capable of storing electrical energy at the quantum level. Based on the results of impedance spectroscopy, it was found that the obtained clathrate structures are promising for use as a cavitand electrode in a quantum battery, and, most importantly, can significantly increase its capacity
{"title":"Quantum accumulation of electrical energy at interfacial boundaries in heterophase inorganic / organic clathrates","authors":"V. Maksymych, R. Shvets, F. Ivashchyshyn","doi":"10.23939/jcpee2022.01.030","DOIUrl":"https://doi.org/10.23939/jcpee2022.01.030","url":null,"abstract":"The work is devoted to the current problem of finding new ways and mechanisms of high-density electric energy accumulation. As a result of the conducted researches the system which allows to accumulate an electric charge at the expense of quantum effects and the phenomena without use of chemical reactions is offered. The basic idea was to form a material with a colossal area of the inner active surface with a sharply anisotropic chemical bonding character. Accordingly, the main goal was to create and study electrode materials based on intercalant heterophase structures with different types of hierarchy, capable of storing electrical energy at the quantum level. Based on the results of impedance spectroscopy, it was found that the obtained clathrate structures are promising for use as a cavitand electrode in a quantum battery, and, most importantly, can significantly increase its capacity","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132710946","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 : 2021-11-30DOI: 10.23939/jcpee2021.02.018
Artem Savieliev
At this article, existing methods and ways to increase the efficiency of electricity transmission in over-head power lines were analyzed. The role and place of electric energy in the general structure of energy consu-mption, methods of its transportation, types of losses that occur during transportation of electric energy and ways to reduce these losses were considered. On the basis of literature sources the structure of losses in transmission lines was investigated. A literature review indicates that a certain type of losses has been overlooked, that is, losses occurring due to the mismatch of the load with the line. The ways of achieving and possibilities of maintaining the operation of lines in a matched load mode were analyzed. New method of reducing losses by creating a matched load mode in power lines is proposed.
{"title":"Ways and methods of improving the effciency of overhead power line","authors":"Artem Savieliev","doi":"10.23939/jcpee2021.02.018","DOIUrl":"https://doi.org/10.23939/jcpee2021.02.018","url":null,"abstract":"At this article, existing methods and ways to increase the efficiency of electricity transmission in over-head power lines were analyzed. The role and place of electric energy in the general structure of energy consu-mption, methods of its transportation, types of losses that occur during transportation of electric energy and ways to reduce these losses were considered. On the basis of literature sources the structure of losses in transmission lines was investigated. A literature review indicates that a certain type of losses has been overlooked, that is, losses occurring due to the mismatch of the load with the line. The ways of achieving and possibilities of maintaining the operation of lines in a matched load mode were analyzed. New method of reducing losses by creating a matched load mode in power lines is proposed.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131108167","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 : 2021-11-30DOI: 10.23939/jcpee2021.02.032
M. Shpotyuk, O. Shpotyuk
A correlation ratio between a glass transition temperature Tg and average bond energy E (obtained for chalcogenide glasses in L. Tichý & H. Tichá [J. Non-Cryst. Solids, 189, 1995]) was critically analyzed in this paper. As a result, this ratio was shown to have been obtained using incorrect calculations of the average bond energy E through inappropriate application of different averaging procedures for different terms of this parameter and, therefore, it cannot be used in practice. A mathematical algorithm for calculating the average energy bonding was adjusted by the atom-averaging procedure for the both energy of the “network part of a matrix” Ec (energy of heteropolar bonds) and energy of a "residual matrix" Erm (energy of homopolar bonds), as well as considering the impossibility of forming covalent chemical bonds between cations of different type. It was stated that the linear ratio between the glass transition temperature Tg and energy bonding E can be obtained by the ratio Tg ≅ 326∙(E – 0.94) and this claim was proved for 145 typical representatives of the covalent-bonded network chalcogenide glasses (Ge-As-S/Se-type systems).
硫系玻璃的玻璃化转变温度Tg与平均键能E(的相关比值Tichý & H. tich [J]。Non-Cryst。固体，189,1995])在本文中进行了批判性分析。结果表明，该比率是通过对该参数的不同项不适当地应用不同的平均程序而对平均键能E进行不正确的计算而获得的，因此，它不能在实践中使用。在考虑不同类型阳离子之间不可能形成共价键的情况下，采用原子平均法对“矩阵的网络部分”Ec(异极键能)和“剩余矩阵”Erm(均极键能)的能量进行了调整，并对计算平均能键的数学算法进行了调整。指出玻璃化转变温度Tg与能键E之间的线性比值为Tg = 326∙(E - 0.94)，并对145种典型的共价键网络硫系玻璃(Ge-As-S/ se型体系)进行了验证。
{"title":"Correlation of the glass transition temperature and average energetic connectivity in network chalcogenide glasses","authors":"M. Shpotyuk, O. Shpotyuk","doi":"10.23939/jcpee2021.02.032","DOIUrl":"https://doi.org/10.23939/jcpee2021.02.032","url":null,"abstract":"A correlation ratio between a glass transition temperature Tg and average bond energy E (obtained for chalcogenide glasses in L. Tichý & H. Tichá [J. Non-Cryst. Solids, 189, 1995]) was critically analyzed in this paper. As a result, this ratio was shown to have been obtained using incorrect calculations of the average bond energy E through inappropriate application of different averaging procedures for different terms of this parameter and, therefore, it cannot be used in practice. A mathematical algorithm for calculating the average energy bonding was adjusted by the atom-averaging procedure for the both energy of the “network part of a matrix” Ec (energy of heteropolar bonds) and energy of a \"residual matrix\" Erm (energy of homopolar bonds), as well as considering the impossibility of forming covalent chemical bonds between cations of different type. It was stated that the linear ratio between the glass transition temperature Tg and energy bonding E can be obtained by the ratio Tg ≅ 326∙(E – 0.94) and this claim was proved for 145 typical representatives of the covalent-bonded network chalcogenide glasses (Ge-As-S/Se-type systems).","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127885737","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 : 2021-11-30DOI: 10.23939/jcpee2021.02.012
P. Lezhniuk, V. Komar, O. Rubanenko
The paper analyzes the methods and ways for the redundancy of renewable energy sources (RESs) instability in electric power systems (PS). It is shown that these can be maneuverable capacities, in particular, thermal and hydropower plants, accumulators, hydrogen technologies, biogas plants. It is substantiated that, for various reasons, for the RESs to be developed and their capacity to be increased in power systems, electrochemical accumulators and highly maneuverable capacities existing in the PS are the most prepared for implementation. Mathematical models based on similarity theory and the criterion method have been developed for them. This approach is preferable due to the fact that with the minimum available information, it provides the opportunity to compare different ways of compensation of RESs generation instability, to assess their proportionality, as well as to determine the sensitivity of costs to the capacity of the redundancy methods. Criterion models which allow us to design dependences of the costs for the redundancy of RESs generation instability on the capacity of electrochemical accumulators, on the capacity of the system reserve, as well as on the capacity of power lines have been formed. Such dependencies make it possible to more reasonably choose certain methods of redundancy in accordance with the characteristics and requirements of PS.
{"title":"Criterion modelling of the process of redundancy of renewable energy sources power generation instability by electrochemical accumulators","authors":"P. Lezhniuk, V. Komar, O. Rubanenko","doi":"10.23939/jcpee2021.02.012","DOIUrl":"https://doi.org/10.23939/jcpee2021.02.012","url":null,"abstract":"The paper analyzes the methods and ways for the redundancy of renewable energy sources (RESs) instability in electric power systems (PS). It is shown that these can be maneuverable capacities, in particular, thermal and hydropower plants, accumulators, hydrogen technologies, biogas plants. It is substantiated that, for various reasons, for the RESs to be developed and their capacity to be increased in power systems, electrochemical accumulators and highly maneuverable capacities existing in the PS are the most prepared for implementation. Mathematical models based on similarity theory and the criterion method have been developed for them. This approach is preferable due to the fact that with the minimum available information, it provides the opportunity to compare different ways of compensation of RESs generation instability, to assess their proportionality, as well as to determine the sensitivity of costs to the capacity of the redundancy methods. Criterion models which allow us to design dependences of the costs for the redundancy of RESs generation instability on the capacity of electrochemical accumulators, on the capacity of the system reserve, as well as on the capacity of power lines have been formed. Such dependencies make it possible to more reasonably choose certain methods of redundancy in accordance with the characteristics and requirements of PS.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130399538","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 : 2021-11-30DOI: 10.23939/jcpee2021.02.038
Vasyl Tchaban
Based on the adapted Coulomb's law for the case of moving masses, taking into account the finite velocity of electric field propagation, differential equations of the electromechanical state of the electron-proton tandem are obtained. The real states are simulated, as well as a number of unreal transition states of electron capture by a proton into its own orbit. Contrary to the prohibitions of quantum physics in the field of microworld, the mathematical concept of an electromechanical black hole with a radius m similar to that taking place in celestial mechanics has been introduced. The transients indicating the collapse of the laws of electricity and mechanics at distances r(t) < rem are simulated. A discussion has been started on this issue.
{"title":"Electrical interaction of electron-proton tandem","authors":"Vasyl Tchaban","doi":"10.23939/jcpee2021.02.038","DOIUrl":"https://doi.org/10.23939/jcpee2021.02.038","url":null,"abstract":"Based on the adapted Coulomb's law for the case of moving masses, taking into account the finite velocity of electric field propagation, differential equations of the electromechanical state of the electron-proton tandem are obtained. The real states are simulated, as well as a number of unreal transition states of electron capture by a proton into its own orbit. Contrary to the prohibitions of quantum physics in the field of microworld, the mathematical concept of an electromechanical black hole with a radius m similar to that taking place in celestial mechanics has been introduced. The transients indicating the collapse of the laws of electricity and mechanics at distances r(t) < rem are simulated. A discussion has been started on this issue.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114892543","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 : 2021-11-30DOI: 10.23939/jcpee2021.02.001
N. Boyko
Currently, machine learning algorithms (ML) are increasingly integrated into everyday life. There are many areas of modern life where classification methods are already used. Methods taking into account previous predictions and errors that are calculated as a result of data integration to obtain forecasts for obtaining the classification result are investigated. A general overview of classification methods is conducted. Experiments on machine learning algorithms for multimodal data are performed. It is important to consider all the characteristics of metrics and features when using ML algorithms to predict multimodal data. The main advantages and disadvantages of Gradient Boosting, Random Forest, Logistic Regression and XGBoost algorithms are analyzed in the work.
{"title":"Research into machine learning algorithms for the construction of mathematical models of multimodal data classification problems","authors":"N. Boyko","doi":"10.23939/jcpee2021.02.001","DOIUrl":"https://doi.org/10.23939/jcpee2021.02.001","url":null,"abstract":"Currently, machine learning algorithms (ML) are increasingly integrated into everyday life. There are many areas of modern life where classification methods are already used. Methods taking into account previous predictions and errors that are calculated as a result of data integration to obtain forecasts for obtaining the classification result are investigated. A general overview of classification methods is conducted. Experiments on machine learning algorithms for multimodal data are performed. It is important to consider all the characteristics of metrics and features when using ML algorithms to predict multimodal data. The main advantages and disadvantages of Gradient Boosting, Random Forest, Logistic Regression and XGBoost algorithms are analyzed in the work.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128324062","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 : 2021-04-25DOI: 10.23939/jcpee2021.01.036
D. Zayachuk, Vasyl E. Slynko, A. Csík
Sputtering of PbTe, SnTe, and GeTe crystal samples by low-energy Ar+ ions are investigated, and the sputtering rate vsp of the studied compounds, as well as its dependence on both the composition of crystal matrix and the sputtering energy are determined. It is found that under the same conditions the sputtering rate in the sequence of GeTe-SnTe-PbTe telluride compounds increases when their average atomic weight increases. This phenomenon is explained by changes in the surface binding energy of metal atoms in lead, tin and germanium tellurides. It is shown that for all compounds the sputtering rate also increases with the increase in the sputtering energy. In the energy range from 160 to 550 eV,this increase is almost linear. The coefficients of change in the sputtering rate with energy dvsp/dE are calculated. The surface density of Ar+ ion-induced structures and the relative area of the sputtered surface covered by these structures are determined for the natural lateral surfaces of a PbTe crystal grown from melt by the Bridgman method as a function of sputtering energy. It is shown that both studied parameters decrease exponentially with increasing the sputtering energy.
{"title":"Sputtering rate of lead, tin and germanium tellurides with low energy argon ions","authors":"D. Zayachuk, Vasyl E. Slynko, A. Csík","doi":"10.23939/jcpee2021.01.036","DOIUrl":"https://doi.org/10.23939/jcpee2021.01.036","url":null,"abstract":"Sputtering of PbTe, SnTe, and GeTe crystal samples by low-energy Ar+ ions are investigated, and the sputtering rate vsp of the studied compounds, as well as its dependence on both the composition of crystal matrix and the sputtering energy are determined. It is found that under the same conditions the sputtering rate in the sequence of GeTe-SnTe-PbTe telluride compounds increases when their average atomic weight increases. This phenomenon is explained by changes in the surface binding energy of metal atoms in lead, tin and germanium tellurides. It is shown that for all compounds the sputtering rate also increases with the increase in the sputtering energy. In the energy range from 160 to 550 eV,this increase is almost linear. The coefficients of change in the sputtering rate with energy dvsp/dE are calculated. The surface density of Ar+ ion-induced structures and the relative area of the sputtered surface covered by these structures are determined for the natural lateral surfaces of a PbTe crystal grown from melt by the Bridgman method as a function of sputtering energy. It is shown that both studied parameters decrease exponentially with increasing the sputtering energy.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123548877","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 : 2021-04-25DOI: 10.23939/jcpee2021.01.007
V. Horyachko, O. Hamola, Taras Ryzhyi
he article deals with an analysis of magnetic fields of electric machines and electromagnetic devices on the basis of their circuit mathematical models. The magnetic systems of electrical devices in these models are presented in the form of planar nonlinear magnetic circuits with lumped elements. The parameters of these elements are determined on the basis of geometric dimensions taking into account the design features of the devices and the physical parameters of the environment.
{"title":"Analysis of magnetic fields of electrical devices based on their circuit models","authors":"V. Horyachko, O. Hamola, Taras Ryzhyi","doi":"10.23939/jcpee2021.01.007","DOIUrl":"https://doi.org/10.23939/jcpee2021.01.007","url":null,"abstract":"he article deals with an analysis of magnetic fields of electric machines and electromagnetic devices on the basis of their circuit mathematical models. The magnetic systems of electrical devices in these models are presented in the form of planar nonlinear magnetic circuits with lumped elements. The parameters of these elements are determined on the basis of geometric dimensions taking into account the design features of the devices and the physical parameters of the environment.","PeriodicalId":325908,"journal":{"name":"Computational Problems of Electrical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134133119","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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