Pub Date : 2020-10-19DOI: 10.1109/EPE51172.2020.9269197
M. Leinakse, J. Kilter
This paper presents an approach for clustering aggregated loads based on load class energy consumption time series, and choosing representative loads for each group. The described approach was applied in a transmission system load modelling study. The goal of the study was to choose representative loads for measurement-based modelling. The work was motivated by the limited number of available measurement devices and available personnel for data processing. The monthly energy consumption of each load class was known for each aggregated bus load. After measurement data pre-processing the larger loads were clustered using K-means algorithm, and smaller assigned to clusters. Representative loads were selected from each cluster.
{"title":"Clustering of Transmission System Loads Based on Monthly Load Class Energy Consumptions","authors":"M. Leinakse, J. Kilter","doi":"10.1109/EPE51172.2020.9269197","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269197","url":null,"abstract":"This paper presents an approach for clustering aggregated loads based on load class energy consumption time series, and choosing representative loads for each group. The described approach was applied in a transmission system load modelling study. The goal of the study was to choose representative loads for measurement-based modelling. The work was motivated by the limited number of available measurement devices and available personnel for data processing. The monthly energy consumption of each load class was known for each aggregated bus load. After measurement data pre-processing the larger loads were clustered using K-means algorithm, and smaller assigned to clusters. Representative loads were selected from each cluster.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115769622","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269253
Yuri E. Adamyan, I. S. Kolodkin, S. Krivosheev, S. Magazinov, V. Titkov, Konstantin V. Iakushov
It is known that high-frequency rapidly damped oscillations occur at the front of the voltage pulse remaining after the operation of the nonlinear surge arrester (SPD). The amplitude of these oscillations is determined by the circuit properties in which the SPD stands, and it can significantly exceed the level of the remaining voltage at the SPD, negatively affecting the internal insulation of the high-voltage equipment elements. The parameters of these high-frequency oscillations are determined by the grounding device (GD) parameters in which the SPD is connected. Due to the results analysis of the numerical simulation of the current flow processes in the GD, it is shown that the GD impedance is complex, and the transient resistance of the GD can be used to describe the GD reaction to pulsed action. A distinctive feature of the transient resistance is their high sensitivity to load parameters in the high-frequency interval of the action (at the pulse front) and the steady-state value of the GD resistance after 10–20 microseconds, determined in stationary modes. The maximum values of high-frequency overvoltages are determined by the maximum values of a transient resistance. The numerical simulation results of the lightning current spreading process in a 3D formulation for various GD configurations showed that there is an optimal parameters ratio depending on the time constant of the soil (the product of dielectric constant and conductivity), at which minimum amplitudes of high-frequency oscillations are observed.
{"title":"A Relation of the Parameters of Grounding Device with the Level of Over-voltage when a Surge Arrester Triggered","authors":"Yuri E. Adamyan, I. S. Kolodkin, S. Krivosheev, S. Magazinov, V. Titkov, Konstantin V. Iakushov","doi":"10.1109/EPE51172.2020.9269253","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269253","url":null,"abstract":"It is known that high-frequency rapidly damped oscillations occur at the front of the voltage pulse remaining after the operation of the nonlinear surge arrester (SPD). The amplitude of these oscillations is determined by the circuit properties in which the SPD stands, and it can significantly exceed the level of the remaining voltage at the SPD, negatively affecting the internal insulation of the high-voltage equipment elements. The parameters of these high-frequency oscillations are determined by the grounding device (GD) parameters in which the SPD is connected. Due to the results analysis of the numerical simulation of the current flow processes in the GD, it is shown that the GD impedance is complex, and the transient resistance of the GD can be used to describe the GD reaction to pulsed action. A distinctive feature of the transient resistance is their high sensitivity to load parameters in the high-frequency interval of the action (at the pulse front) and the steady-state value of the GD resistance after 10–20 microseconds, determined in stationary modes. The maximum values of high-frequency overvoltages are determined by the maximum values of a transient resistance. The numerical simulation results of the lightning current spreading process in a 3D formulation for various GD configurations showed that there is an optimal parameters ratio depending on the time constant of the soil (the product of dielectric constant and conductivity), at which minimum amplitudes of high-frequency oscillations are observed.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114918467","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269199
Stanislav Nowak, S. Kocman
Nowadays, almost 50% of steel is made from steel scrap by electric heating and melting, mostly in arc furnaces. The electric arc furnace with all its equipment is often a key unit in the entire steel manufacturing process. Therefore, all electric arc furnace equipment must be designed with respect to the requirement of high reliability for long-term operation under very hard conditions in the steel mill. A very important part of the furnace installation is the device that compensates the undesirable reactive power and also reduces the voltage distortion in the supply grid. A filter-compensation unit is used for this purpose. During the operation of the filter-compensation unit in an investigated furnace installation a failure occurred, whose causes are described in this paper.
{"title":"Investigation of a Damaged Filter-Compensation Unit","authors":"Stanislav Nowak, S. Kocman","doi":"10.1109/EPE51172.2020.9269199","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269199","url":null,"abstract":"Nowadays, almost 50% of steel is made from steel scrap by electric heating and melting, mostly in arc furnaces. The electric arc furnace with all its equipment is often a key unit in the entire steel manufacturing process. Therefore, all electric arc furnace equipment must be designed with respect to the requirement of high reliability for long-term operation under very hard conditions in the steel mill. A very important part of the furnace installation is the device that compensates the undesirable reactive power and also reduces the voltage distortion in the supply grid. A filter-compensation unit is used for this purpose. During the operation of the filter-compensation unit in an investigated furnace installation a failure occurred, whose causes are described in this paper.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129812986","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269191
Oula Lehtinen, Sami Pitkäniemi, Atte Weckman, Mikael Aikio, Michel Mabano, M. Lehtonen
Electric vehicle (EV) charging is expected to constitute a substantial part of the power demand in residential areas in the future. Its effects on the principles of distribution network planning and load profiles need to be studied. In this paper, we evaluate the feasibility of replacing the conventional cars with EVs in Finnish district heated apartment house areas. Stochastic simulation is used to combine a probabilistic charging model and electricity consumption data. We estimate the effects of uncontrolled, curtailed and price-optimized residential EV charging with different charging powers defined in the standards. The simulation results show that with 11.1 kW and 22.2 kW uncontrolled charging, the example apartment house connections would be overloaded. It is also found that the price-optimized charging should include a coordinated control logic that supports the local grid. With 1.84 kW charging, the power demand stays within the acceptable limits, but the coincidence factor increases from 0.2 to 0.63-0.93.
{"title":"Electric Vehicle Charging Loads in Residential Areas of Apartment Houses","authors":"Oula Lehtinen, Sami Pitkäniemi, Atte Weckman, Mikael Aikio, Michel Mabano, M. Lehtonen","doi":"10.1109/EPE51172.2020.9269191","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269191","url":null,"abstract":"Electric vehicle (EV) charging is expected to constitute a substantial part of the power demand in residential areas in the future. Its effects on the principles of distribution network planning and load profiles need to be studied. In this paper, we evaluate the feasibility of replacing the conventional cars with EVs in Finnish district heated apartment house areas. Stochastic simulation is used to combine a probabilistic charging model and electricity consumption data. We estimate the effects of uncontrolled, curtailed and price-optimized residential EV charging with different charging powers defined in the standards. The simulation results show that with 11.1 kW and 22.2 kW uncontrolled charging, the example apartment house connections would be overloaded. It is also found that the price-optimized charging should include a coordinated control logic that supports the local grid. With 1.84 kW charging, the power demand stays within the acceptable limits, but the coincidence factor increases from 0.2 to 0.63-0.93.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134018935","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269182
M. F. Abdel-Fattah, Hannah L. Kohler, Peter Rotenberger, Leonard Schöler
Smart grid is the network of the future. However, many questions still remain about the exact structure of the grid. This paper aims to explain the idea behind the holonic architecture of smart grids and give a framework on self-healing within this architecture. The state of the art is presented with different organization structures that are proposed for smart-grids applications, as well as the potential the holonic structure brings along and also the challenges that must be dealt with. The framework for self-healing from faults, or interruption, is presented, including prerequisites, quality coefficients evaluation and development, and the self-healing procedure. Some thoughts regarding the application of holonic architecture for self-healing function in smart grids, are also presented.
{"title":"A Review of the Holonic Architecture for the Smart Grids and the Self-Healing Application","authors":"M. F. Abdel-Fattah, Hannah L. Kohler, Peter Rotenberger, Leonard Schöler","doi":"10.1109/EPE51172.2020.9269182","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269182","url":null,"abstract":"Smart grid is the network of the future. However, many questions still remain about the exact structure of the grid. This paper aims to explain the idea behind the holonic architecture of smart grids and give a framework on self-healing within this architecture. The state of the art is presented with different organization structures that are proposed for smart-grids applications, as well as the potential the holonic structure brings along and also the challenges that must be dealt with. The framework for self-healing from faults, or interruption, is presented, including prerequisites, quality coefficients evaluation and development, and the self-healing procedure. Some thoughts regarding the application of holonic architecture for self-healing function in smart grids, are also presented.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"9 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131751596","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269271
M. N. Iqbal, L. Kütt, B. Asad, Noman Shabbir
This paper presents the effect of installation cables on the current harmonics emission due to nonlinear loads. Climate change and volatile fuel prices are persuading policy-making institutions to move in the direction of energy efficiency practices. The energy-efficient models of household appliances contain power electronic circuits and, thus, a source of current harmonics. In order to estimate the influence of current harmonics on the distribution network, an accurate assessment of power quality is required when the non-linear sources are connected to the distribution grid. However, accurate assessment is a challenging task because of the involvement of various uncertainties. This paper focuses on the influence of installation cables on the current harmonics connected with the nonlinear devices.
{"title":"Impact of Cable Impedance on the Harmonic Emission of LED Lamps","authors":"M. N. Iqbal, L. Kütt, B. Asad, Noman Shabbir","doi":"10.1109/EPE51172.2020.9269271","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269271","url":null,"abstract":"This paper presents the effect of installation cables on the current harmonics emission due to nonlinear loads. Climate change and volatile fuel prices are persuading policy-making institutions to move in the direction of energy efficiency practices. The energy-efficient models of household appliances contain power electronic circuits and, thus, a source of current harmonics. In order to estimate the influence of current harmonics on the distribution network, an accurate assessment of power quality is required when the non-linear sources are connected to the distribution grid. However, accurate assessment is a challenging task because of the involvement of various uncertainties. This paper focuses on the influence of installation cables on the current harmonics connected with the nonlinear devices.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133514251","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269215
Jakub Bača, D. Kouril, P. Palacky, Jan Strossa
The paper presents the results of our research on the use of artificial neural networks for sensorless control of induction motor drives. A feedforward artificial neural network with one hidden layer was designed and trained offline to act as a model of induction motor, which directly provides the actual speed of a drive. The model was subsequently incorporated in the field-oriented control scheme, where it fully replaces an incremental encoder. The presented solution was tested out using an experimental drive equipped with a 2.2 kW induction machine and controlled by a control system which is based on the TMS320F28335 digital signal controller. The obtained experimental results show a high level of accuracy in the low speed range.
{"title":"Induction motor drive with field-oriented control and speed estimation using feedforward neural network","authors":"Jakub Bača, D. Kouril, P. Palacky, Jan Strossa","doi":"10.1109/EPE51172.2020.9269215","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269215","url":null,"abstract":"The paper presents the results of our research on the use of artificial neural networks for sensorless control of induction motor drives. A feedforward artificial neural network with one hidden layer was designed and trained offline to act as a model of induction motor, which directly provides the actual speed of a drive. The model was subsequently incorporated in the field-oriented control scheme, where it fully replaces an incremental encoder. The presented solution was tested out using an experimental drive equipped with a 2.2 kW induction machine and controlled by a control system which is based on the TMS320F28335 digital signal controller. The obtained experimental results show a high level of accuracy in the low speed range.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123360172","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269277
R. Holomb, K. Katovský, I. Haysak, J. Adam, R. Vespalec, J. Vrzalová, M. Zeman, V. Brudanin, L. Zavorka, D. Karaivanov, A. Solnyshkin, D. Filosofov, J. Khushvaktov, V. Tsupko-Sitnikov
This paper shows the results from the experiment that was done in JINR (Joint Institute for Nuclear Research) Dubna. Thorium foil between two aluminum foils was irradiated inside Phasotron with 100 MeV protons. As a result - gamma spectra was obtained from the Th and aluminum foils and residual nuclei cross-sections were evaluated from the reaction. Also there was made a simulation analysis of the beam distribution inside the Th foil and particle escape from the target. The experimental cross-sections were compared with calculations made in Monte-Carlo simulation (MCNP 6.1).
{"title":"Experimental and simulated data at fragment productions in 100 MeV proton-induced reaction on 232Th","authors":"R. Holomb, K. Katovský, I. Haysak, J. Adam, R. Vespalec, J. Vrzalová, M. Zeman, V. Brudanin, L. Zavorka, D. Karaivanov, A. Solnyshkin, D. Filosofov, J. Khushvaktov, V. Tsupko-Sitnikov","doi":"10.1109/EPE51172.2020.9269277","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269277","url":null,"abstract":"This paper shows the results from the experiment that was done in JINR (Joint Institute for Nuclear Research) Dubna. Thorium foil between two aluminum foils was irradiated inside Phasotron with 100 MeV protons. As a result - gamma spectra was obtained from the Th and aluminum foils and residual nuclei cross-sections were evaluated from the reaction. Also there was made a simulation analysis of the beam distribution inside the Th foil and particle escape from the target. The experimental cross-sections were compared with calculations made in Monte-Carlo simulation (MCNP 6.1).","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125031357","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269247
P. Mastný, M. Vojtek, J. Morávek, M. Vrána, J. Klusacek
This paper deals with testing of photovoltaic inverters frequency response using a test facility located in REsLAB at the Department of Electrical Power Engineering, Brno University of Technology. It includes practical experience with the test site, the test procedure for verification of the frequency response and description of tested devices. Overall, six devices were tested. The presented results of measurements are graphically processed and subsequently the compliance with the relevant standards and national grid code is evaluated. The conclusion contains a summarization of the findings and practical recommendations.
{"title":"Validation of PV Inverters Frequency Response Using Laboratory Test Platform","authors":"P. Mastný, M. Vojtek, J. Morávek, M. Vrána, J. Klusacek","doi":"10.1109/EPE51172.2020.9269247","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269247","url":null,"abstract":"This paper deals with testing of photovoltaic inverters frequency response using a test facility located in REsLAB at the Department of Electrical Power Engineering, Brno University of Technology. It includes practical experience with the test site, the test procedure for verification of the frequency response and description of tested devices. Overall, six devices were tested. The presented results of measurements are graphically processed and subsequently the compliance with the relevant standards and national grid code is evaluated. The conclusion contains a summarization of the findings and practical recommendations.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121899177","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 : 2020-10-19DOI: 10.1109/EPE51172.2020.9269255
Pavel Suk, J. Frybort
Nuclear safety is the essential aspect of the nuclear power plant operation. The safety is based on the well prepared fuel loading pattern that is created with using 3D full core calculations. The calculations are conducted with the simplified geometry and simplified neutron transport solvers (called macrocodes) in industry based process. The simplified calculation approach is efficient with reduced calculation costs, however the specific library of the macroscopic cross-sections have to be prepared. The library is calculated using deterministic or stochastic lattice codes. The macroscopic cross-sections are affected by the calculation approach, moreover they provide connections of the mathematical solution with the physic meaning. The macroscopic cross-sections are compared in the paper. The main problem of the deterministic calculation codes is self-shielding simulation. The presented approach shows relatively good results consistency with the stochastic code. Otherwise, the XS are affected by the self-shielding methodology in higher scale than the multiplication factor. The XS calculated via different code represents reasonably good compliance, however the transport XS is highly affected by the approach (up to 30 %) or code used for data preparation process (up to 50%).
{"title":"XS data preparation for 3D full core calculations","authors":"Pavel Suk, J. Frybort","doi":"10.1109/EPE51172.2020.9269255","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269255","url":null,"abstract":"Nuclear safety is the essential aspect of the nuclear power plant operation. The safety is based on the well prepared fuel loading pattern that is created with using 3D full core calculations. The calculations are conducted with the simplified geometry and simplified neutron transport solvers (called macrocodes) in industry based process. The simplified calculation approach is efficient with reduced calculation costs, however the specific library of the macroscopic cross-sections have to be prepared. The library is calculated using deterministic or stochastic lattice codes. The macroscopic cross-sections are affected by the calculation approach, moreover they provide connections of the mathematical solution with the physic meaning. The macroscopic cross-sections are compared in the paper. The main problem of the deterministic calculation codes is self-shielding simulation. The presented approach shows relatively good results consistency with the stochastic code. Otherwise, the XS are affected by the self-shielding methodology in higher scale than the multiplication factor. The XS calculated via different code represents reasonably good compliance, however the transport XS is highly affected by the approach (up to 30 %) or code used for data preparation process (up to 50%).","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116958586","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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