Pub Date : 2015-11-23DOI: 10.1109/CPEE.2015.7333367
A. Seif, S. Karimi, H. Abdi, M. Fazli
Recently, the idea of a variable speed wind turbine equipped with doubly fed induction generator (DFIG) has obtained great regard because of its considerable superiority over other wind turbine generators. New configuration of DFIG is single external feeding of DFIG (SEF-DFIG) where a rotor side converter (RSC) is set instead of the back to back variable frequency converter (VFC) in the conventional DFIG. In this paper, the vector control method for the SEF-DFIG is defined, then DFIG and SEF-DFIG operation in wind turbine system (WTS) during normal condition and grid fault, is compared. Also a static synchronous compensator (STATCOM) is employed to supply the reactive power and voltage support to a wind turbine equipped with conventional DFIG and SEF-DFIG and power system during normal grid condition and grid faults. Simulation has been done using PSCAD/EMTDC software.
{"title":"Comparison of DFIG and SEF-DFIG operation in wind turbine systems","authors":"A. Seif, S. Karimi, H. Abdi, M. Fazli","doi":"10.1109/CPEE.2015.7333367","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333367","url":null,"abstract":"Recently, the idea of a variable speed wind turbine equipped with doubly fed induction generator (DFIG) has obtained great regard because of its considerable superiority over other wind turbine generators. New configuration of DFIG is single external feeding of DFIG (SEF-DFIG) where a rotor side converter (RSC) is set instead of the back to back variable frequency converter (VFC) in the conventional DFIG. In this paper, the vector control method for the SEF-DFIG is defined, then DFIG and SEF-DFIG operation in wind turbine system (WTS) during normal condition and grid fault, is compared. Also a static synchronous compensator (STATCOM) is employed to supply the reactive power and voltage support to a wind turbine equipped with conventional DFIG and SEF-DFIG and power system during normal grid condition and grid faults. Simulation has been done using PSCAD/EMTDC software.","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":"115248338","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.2015.7333368
B. Sawicki, A. Krupa
Electrical properties of biological tissues can be described using statistical approach, which is close to the complexity of the living bodies. Application of fuzzy sets theory allows to build more realistic models of human body. In this paper two types of variability of conductivity are presented and analyzed. One related with measurement uncertainty and random distribution of parameter inside the organ, and the second with variability between individuals.
{"title":"Study of biological tissues variability modeling","authors":"B. Sawicki, A. Krupa","doi":"10.1109/CPEE.2015.7333368","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333368","url":null,"abstract":"Electrical properties of biological tissues can be described using statistical approach, which is close to the complexity of the living bodies. Application of fuzzy sets theory allows to build more realistic models of human body. In this paper two types of variability of conductivity are presented and analyzed. One related with measurement uncertainty and random distribution of parameter inside the organ, and the second with variability between individuals.","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":"116058125","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.2015.7333346
I. Kurytnik, T. Dróżdż, P. Nawara
The paper contains results of uncertainty estimation during verification of ESD generator parameters by means of sensitivity method in scattering parameters measurement. In addition, basic assumptions and limitations necessary for correct measurement those parameters were described. A calculation example as well as simulation results and graphs have been presented.
{"title":"Sensitivity method for evaluating impact of accuracy of the measurement path during ESD generator verification","authors":"I. Kurytnik, T. Dróżdż, P. Nawara","doi":"10.1109/CPEE.2015.7333346","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333346","url":null,"abstract":"The paper contains results of uncertainty estimation during verification of ESD generator parameters by means of sensitivity method in scattering parameters measurement. In addition, basic assumptions and limitations necessary for correct measurement those parameters were described. A calculation example as well as simulation results and graphs have been 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":"124439717","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.2015.7333380
V. Tchaban
In the paper the integral expressions of kinetic co-energy end potential energy for non-linear media are presented. On this base the nature of kinetic co-energy and its transformation in the act of motion into kinetic energy as a force action are shown. Such type transformation may be both active (electromagnetic field) and passive (relativity gravitation).
{"title":"Active and passive co-energy","authors":"V. Tchaban","doi":"10.1109/CPEE.2015.7333380","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333380","url":null,"abstract":"In the paper the integral expressions of kinetic co-energy end potential energy for non-linear media are presented. On this base the nature of kinetic co-energy and its transformation in the act of motion into kinetic energy as a force action are shown. Such type transformation may be both active (electromagnetic field) and passive (relativity gravitation).","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":"115027285","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.2015.7333354
K. Mikolajuk, A. Tobola
The optimization approach to voltage harmonic elimination is presented. The parallel filter used for the voltage shape improving in three-phase four wire systems is considered. The nonlinear inductor is applied as a source of current and voltage harmonics. Two cases are considered-harmonic reduction and unbalanced load correction.
{"title":"Optimization method for harmonic identification in three-phase four-wire systems","authors":"K. Mikolajuk, A. Tobola","doi":"10.1109/CPEE.2015.7333354","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333354","url":null,"abstract":"The optimization approach to voltage harmonic elimination is presented. The parallel filter used for the voltage shape improving in three-phase four wire systems is considered. The nonlinear inductor is applied as a source of current and voltage harmonics. Two cases are considered-harmonic reduction and unbalanced load correction.","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":"123090271","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.2015.7333331
Konstantin Dzjuba, I. Mazurenko, Y. Vasetsky
An assessment of accuracy of asymptotic method for analysis of a three-dimensional pulse electromagnetic field created by arbitrary current contour, which is located near the flat surface of a conductive body, has been considered. Comparison of the exact and approximate values of integrand function for exponentially damped impulse has shown correspondence of theoretical estimations for asymptotic series' terms and calculation results.
{"title":"An assessment of accuracy of approximate mathematical model of pulse electromagnetic field of current flowing near conductive body","authors":"Konstantin Dzjuba, I. Mazurenko, Y. Vasetsky","doi":"10.1109/CPEE.2015.7333331","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333331","url":null,"abstract":"An assessment of accuracy of asymptotic method for analysis of a three-dimensional pulse electromagnetic field created by arbitrary current contour, which is located near the flat surface of a conductive body, has been considered. Comparison of the exact and approximate values of integrand function for exponentially damped impulse has shown correspondence of theoretical estimations for asymptotic series' terms and calculation results.","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":"122802616","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.2015.7333342
B. Kopchak
The approach to the synthesis of fractional controllers for automatic control systems circuits by a particle swarm optimization method has been proposed. Novelty of this approach lies in the idea that one is supposed to choose the desired quality of the transition process by the parameters of one of the standard fractional Butterworth forms. The paper considers two variants of the controller parameters synthesis by a particle swarm optimization: using the transition function of desired standard fractional form; using the characteristic points of transition function of desired standard fractional form.
{"title":"Synthesis of automatic control systems by a particle swarm optimization method using butterworth fractional standard forms","authors":"B. Kopchak","doi":"10.1109/CPEE.2015.7333342","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333342","url":null,"abstract":"The approach to the synthesis of fractional controllers for automatic control systems circuits by a particle swarm optimization method has been proposed. Novelty of this approach lies in the idea that one is supposed to choose the desired quality of the transition process by the parameters of one of the standard fractional Butterworth forms. The paper considers two variants of the controller parameters synthesis by a particle swarm optimization: using the transition function of desired standard fractional form; using the characteristic points of transition function of desired standard fractional form.","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":"124586425","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.2015.7333325
L. Byczkowska-Lipińska, P. Stakhiv, Y. Kozak
An automated construction of mathematical models of nonlinear dynamical systems based on optimization and evolutionary algorithms is considered. The dependency of the model quality from the parameters of evolutionary model form selection is a subject of the research. The criteria for optimal evolutionary parameters selection are proposed.
{"title":"The influence of parameters of evolutionary selection of model form on its precision and complexity","authors":"L. Byczkowska-Lipińska, P. Stakhiv, Y. Kozak","doi":"10.1109/CPEE.2015.7333325","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333325","url":null,"abstract":"An automated construction of mathematical models of nonlinear dynamical systems based on optimization and evolutionary algorithms is considered. The dependency of the model quality from the parameters of evolutionary model form selection is a subject of the research. The criteria for optimal evolutionary parameters selection are 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":"117029623","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.2015.7333329
P. Dukalski, R. Rossa, A. Dzikowski, I. Kurytnik
Results of permanent magnet synchronous motor design calculations are presented in the paper. This motor is proposed for the longwall shearer advance drive. The authors have described the advantages of permanent magnet motors, presented most common designs of rotors and explained field-circuital method which was used for electromagnetic circuit design.
{"title":"Design of PM motor dedicated to longwall shearer advance drive","authors":"P. Dukalski, R. Rossa, A. Dzikowski, I. Kurytnik","doi":"10.1109/CPEE.2015.7333329","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333329","url":null,"abstract":"Results of permanent magnet synchronous motor design calculations are presented in the paper. This motor is proposed for the longwall shearer advance drive. The authors have described the advantages of permanent magnet motors, presented most common designs of rotors and explained field-circuital method which was used for electromagnetic circuit design.","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":"133616533","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.2015.7333323
Oleh Biletsky, N. Suprunovska, A. Shcherba
The research is devoted to comparison of energy characteristics of linear capacitor and super-capacitor during their charge from the accumulator battery. The features of influence of the final voltages on the electrical energy losses at charge linear capacitors from the accumulator battery and supercapacitors are established. The conditions of decrease of the losses in the capacitor charging circuits are defined.
{"title":"The optimization of energy parameters of the electrical systems of charge of supercapacitor from accumulator battery","authors":"Oleh Biletsky, N. Suprunovska, A. Shcherba","doi":"10.1109/CPEE.2015.7333323","DOIUrl":"https://doi.org/10.1109/CPEE.2015.7333323","url":null,"abstract":"The research is devoted to comparison of energy characteristics of linear capacitor and super-capacitor during their charge from the accumulator battery. The features of influence of the final voltages on the electrical energy losses at charge linear capacitors from the accumulator battery and supercapacitors are established. The conditions of decrease of the losses in the capacitor charging circuits are defined.","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":"132625158","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：