Pub Date : 2015-11-23DOI: 10.1109/CPEE.2015.7333335
V. Hrechko, Hrygorii Varskyi, Evgenii Tankevych
Basic theoretical propositions which constitute the basis for technique of calculation of electromagnetic system parameters of sensor of protective electronic current transformer with standardized metrological performance under power system transient conditions have been developed. Compliance of metrological performance of sensor with calculated parameters with its value given in calculation was confirmed by simulation modeling.
{"title":"Electronic current transformer gapped sensor design parameters calculation and selection","authors":"V. Hrechko, Hrygorii Varskyi, Evgenii Tankevych","doi":"10.1109/CPEE.2015.7333335","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333335","url":null,"abstract":"Basic theoretical propositions which constitute the basis for technique of calculation of electromagnetic system parameters of sensor of protective electronic current transformer with standardized metrological performance under power system transient conditions have been developed. Compliance of metrological performance of sensor with calculated parameters with its value given in calculation was confirmed by simulation modeling.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124203407","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333322
S. Babak, M. Myslovych, R. Sysak
In the paper the construction and practical application peculiarities of systems for energy facilities remote monitoring and diagnostics are considered.
本文讨论了能源设施远程监测诊断系统的结构和实际应用特点。
{"title":"Construction and practical application peculiarities of systems for power facilities remote monitoring and diagnostics","authors":"S. Babak, M. Myslovych, R. Sysak","doi":"10.1109/CPEE.2015.7333322","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333322","url":null,"abstract":"In the paper the construction and practical application peculiarities of systems for energy facilities remote monitoring and diagnostics are considered.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121261413","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333388
M. Zagirnyak, Mariia Maliakova, A. Kalinov
The processes of higher current harmonic compensation in a power-supply system at harmonic distortions of mains supply voltage have been investigated. A method for elimination of mains supply voltage harmonic distortions' influence on operation of an active power Alter by means of exclusion of corresponding harmonics from the algorithm of compensation current calculation has been proposed.
{"title":"Compensation of higher current harmonics at harmonic distortions of mains supply voltage","authors":"M. Zagirnyak, Mariia Maliakova, A. Kalinov","doi":"10.1109/CPEE.2015.7333388","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333388","url":null,"abstract":"The processes of higher current harmonic compensation in a power-supply system at harmonic distortions of mains supply voltage have been investigated. A method for elimination of mains supply voltage harmonic distortions' influence on operation of an active power Alter by means of exclusion of corresponding harmonics from the algorithm of compensation current calculation has been proposed.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125407127","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333389
M. Zagirnyak, V. Prus, O. Somka
Particular features of solving the problem of forecasting the reliability of electric machines with long mean time between failures by means of taking into account the state of their basic structural units are considered. The prospect of using mathematical variable-structure reliability models based on joint use of fuzzy logic and neural network provisions is grounded for solution of this problem. It allows taking into consideration the influence of informative parameters characterizing the state of structural units and the environmental conditions.
{"title":"Reliability models of electric machines with structural defects","authors":"M. Zagirnyak, V. Prus, O. Somka","doi":"10.1109/CPEE.2015.7333389","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333389","url":null,"abstract":"Particular features of solving the problem of forecasting the reliability of electric machines with long mean time between failures by means of taking into account the state of their basic structural units are considered. The prospect of using mathematical variable-structure reliability models based on joint use of fuzzy logic and neural network provisions is grounded for solution of this problem. It allows taking into consideration the influence of informative parameters characterizing the state of structural units and the environmental conditions.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126758989","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333379
V. Sydorets, A. Lebedev, A. Dubko
An important goal of surgical exposure is a fusion of living tissues. The electric welding Institute (PWI) developed the method of welding of soft tissues. Method of welding provides reliability of connection without the use of suture. The developed mathematical model can be applied for rectangular conductors with different conductivity in a wide frequency range.
{"title":"Mathematical modeling of the current density distribution in a high-frequency electrosurgery","authors":"V. Sydorets, A. Lebedev, A. Dubko","doi":"10.1109/CPEE.2015.7333379","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333379","url":null,"abstract":"An important goal of surgical exposure is a fusion of living tissues. The electric welding Institute (PWI) developed the method of welding of soft tissues. Method of welding provides reliability of connection without the use of suture. The developed mathematical model can be applied for rectangular conductors with different conductivity in a wide frequency range.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126774787","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333362
P. Pistelok, I. Kurytnik
Electromagnetic circuit of three-phase permanent magnet generator is presented in the paper. This generator works in one-phase operation mode. Field-circuital computational model is shown together with its cross-section. Comparative analysis of calculation results is given, for generator operating with single-phase-load, in one-phase mode when generator windings are connected in series, with three-phase asymmetrical load and three-phase symmetrical load. The waveforms of phase voltages, currents and electromagnetic torque for different load conditions are presented.
{"title":"Permanent magnets generator — Asymmetrical mode of operation","authors":"P. Pistelok, I. Kurytnik","doi":"10.1109/CPEE.2015.7333362","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333362","url":null,"abstract":"Electromagnetic circuit of three-phase permanent magnet generator is presented in the paper. This generator works in one-phase operation mode. Field-circuital computational model is shown together with its cross-section. Comparative analysis of calculation results is given, for generator operating with single-phase-load, in one-phase mode when generator windings are connected in series, with three-phase asymmetrical load and three-phase symmetrical load. The waveforms of phase voltages, currents and electromagnetic torque for different load conditions are presented.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121949984","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333336
J. Izykowski, E. Rosolowski, P. Pierz
One-end algorithm for locating an open conductor failure combined with an earth fault on power lines has been presented. Two cases: an open conductor failure occurring in front of and behind a earth fault, respectively, have been considered. The sample case with the fault data obtained from ATP-EMTP simulation is included and discussed.
{"title":"Location of open conductor failure combined with phase-to-earth fault on power line","authors":"J. Izykowski, E. Rosolowski, P. Pierz","doi":"10.1109/CPEE.2015.7333336","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333336","url":null,"abstract":"One-end algorithm for locating an open conductor failure combined with an earth fault on power lines has been presented. Two cases: an open conductor failure occurring in front of and behind a earth fault, respectively, have been considered. The sample case with the fault data obtained from ATP-EMTP simulation is included and discussed.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132963992","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333339
M. Kiselychnyk
In this paper options for quantitative estimation of electronics quality by means of one-dimensional and two-dimensional probability density functions of parameters are discussed. A mathematical apparatus for estimation of reliability of the elements of their parametric synthesis applying the models "parameter - tolerance range" and "load - load-bearing capacity of a structure" has been proposed.
{"title":"Complex estimation of electronics quality","authors":"M. Kiselychnyk","doi":"10.1109/CPEE.2015.7333339","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333339","url":null,"abstract":"In this paper options for quantitative estimation of electronics quality by means of one-dimensional and two-dimensional probability density functions of parameters are discussed. A mathematical apparatus for estimation of reliability of the elements of their parametric synthesis applying the models \"parameter - tolerance range\" and \"load - load-bearing capacity of a structure\" has been proposed.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116283354","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 : 2015-11-23DOI: 10.1109/CPEE.2015.7333384
R. Yankevych
This paper is devoted to the problem of signal-to-noise ratio (SNR) estimation in communication, telemetry and radar systems.
本文主要研究通信、遥测和雷达系统中的信噪比估计问题。
{"title":"Newly developed method of signal-to-noise ratio estimation","authors":"R. Yankevych","doi":"10.1109/CPEE.2015.7333384","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333384","url":null,"abstract":"This paper is devoted to the problem of signal-to-noise ratio (SNR) estimation in communication, telemetry and radar systems.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122340218","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}
The positivity and asymptotic stability of the discrete-time and continuous-time nonlinear systems are addressed. Sufficient conditions for the positivity and asymptotic stability of the nonlinear systems are established. The proposed stability tests are based on an extension of the Lyapunov method to the positive nonlinear systems.
{"title":"Positivity and stability of discrete-time and continuous-time nonlinear systems","authors":"T. Kaczorek","doi":"10.15199/48.2015.08.30","DOIUrl":"https://doi.org/10.15199/48.2015.08.30","url":null,"abstract":"The positivity and asymptotic stability of the discrete-time and continuous-time nonlinear systems are addressed. Sufficient conditions for the positivity and asymptotic stability of the nonlinear systems are established. The proposed stability tests are based on an extension of the Lyapunov method to the positive nonlinear systems.","PeriodicalId":135123,"journal":{"name":"2015 16th International Conference on Computational Problems of Electrical Engineering (CPEE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120942216","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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