Pub Date : 2017-05-01DOI: 10.1109/EPE.2017.7967292
V. Astapov, Sergei Trashchenkov
In this article, authors developed a model for one particular example of microgrid and considered possibilities to integrate solar panels and power storage into existing grid with diesel generator. The choice of configuration is described and power Quasi-Dynamic simulations are performed for the verification of the model. This paper mainly focuses on reliability issues and considers probability of Top Event of failure for the chosen topology. This method can be useful for preliminary analysis of similar projects.
{"title":"Design and reliability evaluation of standalone microgrid","authors":"V. Astapov, Sergei Trashchenkov","doi":"10.1109/EPE.2017.7967292","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967292","url":null,"abstract":"In this article, authors developed a model for one particular example of microgrid and considered possibilities to integrate solar panels and power storage into existing grid with diesel generator. The choice of configuration is described and power Quasi-Dynamic simulations are performed for the verification of the model. This paper mainly focuses on reliability issues and considers probability of Top Event of failure for the chosen topology. This method can be useful for preliminary analysis of similar projects.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116479315","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967312
Taha Lahlou, S. N. Malik, H. Herzog
Progress in efficiency improvement has been main a matter in grid tie inverters. The employment of multilevel inverters in energy conversion promises a better power quality and lower switching losses than ordinary two-level inverters even in low voltage grid. This paper presents the implementation of several control schemes (Vector Oriented Control, Hysteresis Control) and modulation techniques (Pulse-width Modulation, Nearest Level Control) for a 17 level cascaded H-bridge grid tie inverter for a battery energy storage system. For this purpose, the different physical models distinguished in control and modulation schemes were implemented in Simulink® and Simscape™. On the merits of simulations it is concluded, that the phase shifted modulation technique gives less total harmonic distortion in current and the nearest level control gives lower switching losses when compared to other studied techniques in strong and weak grid tie inverters.
{"title":"Simulation and analysis of control and modulation schemes for a multilevel cascaded H-bridge inverter for use in a battery energy storage system","authors":"Taha Lahlou, S. N. Malik, H. Herzog","doi":"10.1109/EPE.2017.7967312","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967312","url":null,"abstract":"Progress in efficiency improvement has been main a matter in grid tie inverters. The employment of multilevel inverters in energy conversion promises a better power quality and lower switching losses than ordinary two-level inverters even in low voltage grid. This paper presents the implementation of several control schemes (Vector Oriented Control, Hysteresis Control) and modulation techniques (Pulse-width Modulation, Nearest Level Control) for a 17 level cascaded H-bridge grid tie inverter for a battery energy storage system. For this purpose, the different physical models distinguished in control and modulation schemes were implemented in Simulink® and Simscape™. On the merits of simulations it is concluded, that the phase shifted modulation technique gives less total harmonic distortion in current and the nearest level control gives lower switching losses when compared to other studied techniques in strong and weak grid tie inverters.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125801469","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967247
Jaroslav Frantík, J. Najser, Petr Kubalík, P. Vaculík
The article describes using of power semiconductor converters in the area of accumulation of electrical energy in the Technology Centre Ostrava (TCO). Further discloses design of the power semiconductor converters, its internal structure, utilization of energy and the main parameters and focuses on the issues of the capacitor bank — determine the power loss of capacitors, determine the lifetime, determination of optimal values of balance resistors, appropriate choice of balance system, including a description of the advantages and disadvantages of each system. In conclusion of the article is intended power dissipation of balance resistors by using a simulation model and experimental verification of measurement with thermal camera.
{"title":"Power increase of semiconductor converter: Problems with warming of balancing resistors and power capacitors","authors":"Jaroslav Frantík, J. Najser, Petr Kubalík, P. Vaculík","doi":"10.1109/EPE.2017.7967247","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967247","url":null,"abstract":"The article describes using of power semiconductor converters in the area of accumulation of electrical energy in the Technology Centre Ostrava (TCO). Further discloses design of the power semiconductor converters, its internal structure, utilization of energy and the main parameters and focuses on the issues of the capacitor bank — determine the power loss of capacitors, determine the lifetime, determination of optimal values of balance resistors, appropriate choice of balance system, including a description of the advantages and disadvantages of each system. In conclusion of the article is intended power dissipation of balance resistors by using a simulation model and experimental verification of measurement with thermal camera.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127163202","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967305
João Teles de Menezes Neto, A. Alves, Vinícius Carvalhaes
This work analyzed the efficiency of the gasification process applied in Urban Solid Waste (USW), since tests carried out in a pilot plant, as a way of studying the feasibility of applying the process in the production of a gas for burning in a boiler and generation of electricity, on a steam turbine and generator system, on commercial scale. The results indicated the feasibility of the process both in the high conversion efficiency of the Residue Derived Fuel (RDF) into gas as in obtaining a gas with burning and energy generation favorable characteristics. A second analysis evaluated the potential of electricity generation in a Rankine cycle steam turbine demonstrating an estimated generation able not only to supply energy for the whole plant, from USW processing to the fuel gas burning, but also for exporting to the energy grid.
{"title":"An efficiency study on the urban solid waste gasification process for electric power generation","authors":"João Teles de Menezes Neto, A. Alves, Vinícius Carvalhaes","doi":"10.1109/EPE.2017.7967305","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967305","url":null,"abstract":"This work analyzed the efficiency of the gasification process applied in Urban Solid Waste (USW), since tests carried out in a pilot plant, as a way of studying the feasibility of applying the process in the production of a gas for burning in a boiler and generation of electricity, on a steam turbine and generator system, on commercial scale. The results indicated the feasibility of the process both in the high conversion efficiency of the Residue Derived Fuel (RDF) into gas as in obtaining a gas with burning and energy generation favorable characteristics. A second analysis evaluated the potential of electricity generation in a Rankine cycle steam turbine demonstrating an estimated generation able not only to supply energy for the whole plant, from USW processing to the fuel gas burning, but also for exporting to the energy grid.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132994554","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967253
P. Rozehnal, P. Krejci
Electric power is the electrical appliances basic means for their functionality. In case that the electrical energy customer causes problems arise thereby complaints the power quality. In areas with frequent complaints of power quality measurements were made in order to resolve the reported complaints and also in order to investigate the cause of exceeding the compatibility level of power quality.
{"title":"Power quality complaints and monitoring of flicker in selected areas of northern Moravia","authors":"P. Rozehnal, P. Krejci","doi":"10.1109/EPE.2017.7967253","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967253","url":null,"abstract":"Electric power is the electrical appliances basic means for their functionality. In case that the electrical energy customer causes problems arise thereby complaints the power quality. In areas with frequent complaints of power quality measurements were made in order to resolve the reported complaints and also in order to investigate the cause of exceeding the compatibility level of power quality.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123183718","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967297
Marcio R. C. Reis, W. Calixto, W. R. H. Araujo, C. A. Matias
In this paper the switched reluctance generator (SRG) is explored considering the improvement of its efficiency. This machine generates a DC power that is directly related to input driving parameters. Simulation results are presented bringing a case study of parametric regression to track the best efficiency for any input parameters: excitation voltage and turn off angle. A method known as parametric regression is applied along with deterministic optimization in order to find an equation that provides the driving parameters so the machine can generate DC power associated to high efficiency.
{"title":"Increasing efficiency of the switched reluctance generator using parametric regression and optimization methods","authors":"Marcio R. C. Reis, W. Calixto, W. R. H. Araujo, C. A. Matias","doi":"10.1109/EPE.2017.7967297","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967297","url":null,"abstract":"In this paper the switched reluctance generator (SRG) is explored considering the improvement of its efficiency. This machine generates a DC power that is directly related to input driving parameters. Simulation results are presented bringing a case study of parametric regression to track the best efficiency for any input parameters: excitation voltage and turn off angle. A method known as parametric regression is applied along with deterministic optimization in order to find an equation that provides the driving parameters so the machine can generate DC power associated to high efficiency.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124903631","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967262
P. Spánik, M. Frivaldský, M. Pavelek, Zuzana Loncová, T. Donič
This article describes the basic modeling approach of the creation of a resistive heating model of the molybdenum sheet with use of the finite element simulation method. The aim of the model creation is the research of a suitable electrode material with respect to its electrical and thermal properties. The created model is compared to the measurement and adjust for the best possible accuracy. The need for this model also refers to the possibility of predictive control system due to the thermal inertia of the system.
{"title":"Electrothermal model of resistance heating of molybdenum sheet","authors":"P. Spánik, M. Frivaldský, M. Pavelek, Zuzana Loncová, T. Donič","doi":"10.1109/EPE.2017.7967262","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967262","url":null,"abstract":"This article describes the basic modeling approach of the creation of a resistive heating model of the molybdenum sheet with use of the finite element simulation method. The aim of the model creation is the research of a suitable electrode material with respect to its electrical and thermal properties. The created model is compared to the measurement and adjust for the best possible accuracy. The need for this model also refers to the possibility of predictive control system due to the thermal inertia of the system.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122529019","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967320
M. Král, R. Goňo
This paper deals the mathematical description of an asynchronous machine. Differential equations are then used to create a dynamic model of asynchronous machine. For the possibility of evaluation the quality of the created model are created at the conclusion the basic characteristics of representing the asynchronous machine. Graphs show almost identical measured and the simulated values. The model is created with a lot of simplification, therefore the simulation model will be not behave identically in all cases, as the real asynchronous motor.
{"title":"Dynamic model of asynchronous machine","authors":"M. Král, R. Goňo","doi":"10.1109/EPE.2017.7967320","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967320","url":null,"abstract":"This paper deals the mathematical description of an asynchronous machine. Differential equations are then used to create a dynamic model of asynchronous machine. For the possibility of evaluation the quality of the created model are created at the conclusion the basic characteristics of representing the asynchronous machine. Graphs show almost identical measured and the simulated values. The model is created with a lot of simplification, therefore the simulation model will be not behave identically in all cases, as the real asynchronous motor.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122752441","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967280
Petru Valentin Radu, A. Szeląg
This paper presents the design and simulation of an non isolated DC-DC Cuk converter. The input current control is provided with pulse-width modulation (PWM). A closed control loop is used with two proportional-integral (PI) controllers for the current and voltage. The DC-DC Cuk converter is used with Simulink cells for battery and supercapacitors (SC) to simulate the charging and discharging process for a stationary energy storage device (ESD). Simulations results are presented in Simulink.
{"title":"A Cuk converter integrated with lead-acid battery and supercapacitor for stationary applications","authors":"Petru Valentin Radu, A. Szeląg","doi":"10.1109/EPE.2017.7967280","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967280","url":null,"abstract":"This paper presents the design and simulation of an non isolated DC-DC Cuk converter. The input current control is provided with pulse-width modulation (PWM). A closed control loop is used with two proportional-integral (PI) controllers for the current and voltage. The DC-DC Cuk converter is used with Simulink cells for battery and supercapacitors (SC) to simulate the charging and discharging process for a stationary energy storage device (ESD). Simulations results are presented in Simulink.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114421051","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 : 2017-05-01DOI: 10.1109/EPE.2017.7967349
Leandro Kazuaki Tsuruda, Luann Rodrigues, Dayane Martins Salles, A. Alves, W. Calixto, L. R. Vitor, Marcel Bruno Silveira e Souza
This paper's purpose is to investigate the energy efficiency with the installation of the photovoltaic system in residences of social interest, seeking mainly to meet the demands of higher consumption of electric energy such as the showerhead. An estimatedproposal of the Energy Efficiency Program carried out by the Goiana Housing Agency in which it will install 1,199 photovoltaic systems in the housing units of social interest located in the state of Goiás-Brazil. The study estimated the monthly consumption of inputs (water, electricity and gas) in the electric showerhead, gas heater, hybrid shower, solar heater and electric boiler; the total monthly costs for a daily bath per inhabitant were calculated by using the average of 4.9 inhabitants per household. To this comparison was inserted the proposed system of photovoltaic production with the use of electric showerhead. Considering the inputs, the installation cost divided by the life expectancy of the equipment, it was proven that the solution with the lowest cost per bath it the photovoltaic with an expense of 9.38U$. month-1, favorable economic result if compared, for example, to solar heating with an expense of 26.62U$. month-1. The factorssuch asthe average volume of water used per system, average bath time, life expectancy of the equipment, determine the result.
{"title":"Energy efficiency, rationalization of energy and water consumption in popular houses","authors":"Leandro Kazuaki Tsuruda, Luann Rodrigues, Dayane Martins Salles, A. Alves, W. Calixto, L. R. Vitor, Marcel Bruno Silveira e Souza","doi":"10.1109/EPE.2017.7967349","DOIUrl":"https://doi.org/10.1109/EPE.2017.7967349","url":null,"abstract":"This paper's purpose is to investigate the energy efficiency with the installation of the photovoltaic system in residences of social interest, seeking mainly to meet the demands of higher consumption of electric energy such as the showerhead. An estimatedproposal of the Energy Efficiency Program carried out by the Goiana Housing Agency in which it will install 1,199 photovoltaic systems in the housing units of social interest located in the state of Goiás-Brazil. The study estimated the monthly consumption of inputs (water, electricity and gas) in the electric showerhead, gas heater, hybrid shower, solar heater and electric boiler; the total monthly costs for a daily bath per inhabitant were calculated by using the average of 4.9 inhabitants per household. To this comparison was inserted the proposed system of photovoltaic production with the use of electric showerhead. Considering the inputs, the installation cost divided by the life expectancy of the equipment, it was proven that the solution with the lowest cost per bath it the photovoltaic with an expense of 9.38U$. month-1, favorable economic result if compared, for example, to solar heating with an expense of 26.62U$. month-1. The factorssuch asthe average volume of water used per system, average bath time, life expectancy of the equipment, determine the result.","PeriodicalId":201464,"journal":{"name":"2017 18th International Scientific Conference on Electric Power Engineering (EPE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115888331","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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