Pub Date : 2015-11-12DOI: 10.1109/EDPE.2015.7325329
R. Mazgut, S. Kaščák, P. Drgona, R. Radvan, P. Cubon
The main parameter limiting expansion of electric vehicles is just their driving range and price. This parameter is depending on accumulated source energy in the power structure of the vehicle. In order to achieve an increase in range and a higher accumulation efficiency and energy we proposed a supply structure of the electric vehicle. As the primary source of energy it is assumed that LiFePO4 battery pack in combination with ultracapacitor module as the secondary energy source. The article focuses on the formulation of the basic conditions of the power management and their subsequent implementation management in the process of energy transfer in the main electric energy chain.
{"title":"Supply structure with an additional energy storage for electric vehicle","authors":"R. Mazgut, S. Kaščák, P. Drgona, R. Radvan, P. Cubon","doi":"10.1109/EDPE.2015.7325329","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325329","url":null,"abstract":"The main parameter limiting expansion of electric vehicles is just their driving range and price. This parameter is depending on accumulated source energy in the power structure of the vehicle. In order to achieve an increase in range and a higher accumulation efficiency and energy we proposed a supply structure of the electric vehicle. As the primary source of energy it is assumed that LiFePO4 battery pack in combination with ultracapacitor module as the secondary energy source. The article focuses on the formulation of the basic conditions of the power management and their subsequent implementation management in the process of energy transfer in the main electric energy chain.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124472265","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325271
M. Galád, R. Mazgut, P. Spánik
Usage of renewable energy is rapidly growing in last times. Photovoltaic energy has a big potential to supply the households in the near future. Small photovoltaic power systems are being developed in last years. Many issues are connected with this type power system. New inverter topologies are developed to handle effective photovoltaic power system connected to the grid. In the paper, parameters and efficiency of single-phase transformerless topologies are compared. Power losses of each topology are analyzed.
{"title":"Comparison of parameter and efficiency of transformerless inverter topologies","authors":"M. Galád, R. Mazgut, P. Spánik","doi":"10.1109/EDPE.2015.7325271","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325271","url":null,"abstract":"Usage of renewable energy is rapidly growing in last times. Photovoltaic energy has a big potential to supply the households in the near future. Small photovoltaic power systems are being developed in last years. Many issues are connected with this type power system. New inverter topologies are developed to handle effective photovoltaic power system connected to the grid. In the paper, parameters and efficiency of single-phase transformerless topologies are compared. Power losses of each topology are analyzed.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120988897","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325287
Alexander Elbe, Stephan Thaler
To estimate state-of-charge (SOC) and state-of-health (SOH) of a lithium ion battery as exact as possible, the terminal voltage, the terminal current and the cell temperature have to be measured. The easiest model of a battery is an ohmic-capacitive (R-C) series-parallel circuit. Two measurement methods are shown how to get ready to estimate SOC and SOH in a simple but precise manner. The first measurement is a defined capacity package being discharged a battery until the battery is empty. The packages give data points in the correlation curve for open-circuit-voltage (OCV) and SOC. This is base for SOC estimation. To take degradation into account hundred full cycles are examined on the test cells with 15 parameter variations on the above mentioned three parameters voltage, current and temperature.
{"title":"Akku4Future — Methods for data generation to compute state indication","authors":"Alexander Elbe, Stephan Thaler","doi":"10.1109/EDPE.2015.7325287","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325287","url":null,"abstract":"To estimate state-of-charge (SOC) and state-of-health (SOH) of a lithium ion battery as exact as possible, the terminal voltage, the terminal current and the cell temperature have to be measured. The easiest model of a battery is an ohmic-capacitive (R-C) series-parallel circuit. Two measurement methods are shown how to get ready to estimate SOC and SOH in a simple but precise manner. The first measurement is a defined capacity package being discharged a battery until the battery is empty. The packages give data points in the correlation curve for open-circuit-voltage (OCV) and SOC. This is base for SOC estimation. To take degradation into account hundred full cycles are examined on the test cells with 15 parameter variations on the above mentioned three parameters voltage, current and temperature.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122557890","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325345
Rok Pajer, M. Rodic, M. Milanovič
This paper presents metal oxide semiconductor field effect transistor (MOS-FET) RDSon resistance evaluation in order to perform the MOS-FET current-measurement. For calculation of RDSon the thermal model of the MOS-FET is explored. For accurate RDSon evaluation in the real time the voltage UDSon is measured during the switch-on transistor operation mode. This measurement is synchronized by PWM triggering in order to measure the average voltage value and consequently the average current during the converter sampling time period. This measurement approach is verified by real-time measurement during the operation of the DC-DC step-up converter. The program algorithm is performed on 32-bit ARM M4 MCU, STM32F407.
{"title":"Evaluation of MOS-FET RDSon resistance for current measurement purposes in power converter's applications","authors":"Rok Pajer, M. Rodic, M. Milanovič","doi":"10.1109/EDPE.2015.7325345","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325345","url":null,"abstract":"This paper presents metal oxide semiconductor field effect transistor (MOS-FET) RDSon resistance evaluation in order to perform the MOS-FET current-measurement. For calculation of RDSon the thermal model of the MOS-FET is explored. For accurate RDSon evaluation in the real time the voltage UDSon is measured during the switch-on transistor operation mode. This measurement is synchronized by PWM triggering in order to measure the average voltage value and consequently the average current during the converter sampling time period. This measurement approach is verified by real-time measurement during the operation of the DC-DC step-up converter. The program algorithm is performed on 32-bit ARM M4 MCU, STM32F407.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124714274","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325290
Marius Ovidiu Neamtu, Nistor Daniel Trip
For the integration of more renewable energy in a micro-grid greenhouse we have conducted a research for geothermal energy conversion into electricity. Thermal energy conversion uses a steam turbine providing mechanical torque on the shaft of a permanent magnet synchronous motor. Electronic conversion of alternating current to continuous current is performed with conventional modules. Finally, an inverter controlled by electronic management system will ensure stable values for electricity supply grid in single-phase system at European standards. We used real data available of the geothermal source and the real parameters of the electronic components for testing in simulation.
{"title":"A geothermal generator for grid greenhouse electrical power generator for supplying microgrid","authors":"Marius Ovidiu Neamtu, Nistor Daniel Trip","doi":"10.1109/EDPE.2015.7325290","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325290","url":null,"abstract":"For the integration of more renewable energy in a micro-grid greenhouse we have conducted a research for geothermal energy conversion into electricity. Thermal energy conversion uses a steam turbine providing mechanical torque on the shaft of a permanent magnet synchronous motor. Electronic conversion of alternating current to continuous current is performed with conventional modules. Finally, an inverter controlled by electronic management system will ensure stable values for electricity supply grid in single-phase system at European standards. We used real data available of the geothermal source and the real parameters of the electronic components for testing in simulation.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130654801","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325344
Tin Bariša, D. Sumina, M. Kutija
In this paper maximum torque per ampere and loss minimization control methods for an interior permanent magnet synchronous generator are compared. Permanent magnet synchronous generators have wide application in wind energy conversion systems due to high efficiency, high power density, high power factor and wide speed operating range. Maximum torque per ampere control method finds optimal d-and q-axis stator currents that produce desired electromagnetic torque while minimizing stator current magnitude. Loss minimization control method takes into account both copper and iron losses and finds optimal d- and q-axis stator currents that produce desired electromagnetic torque while minimizing total power loss. Characteristic curves for both control methods considering magnetic saturation are presented. Feed-forward torque control model developed in MATLAB/Simulink was used to verify described control methods.
{"title":"Comparison of maximum torque per ampere and loss minimization control for the interior permanent magnet synchronous generator","authors":"Tin Bariša, D. Sumina, M. Kutija","doi":"10.1109/EDPE.2015.7325344","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325344","url":null,"abstract":"In this paper maximum torque per ampere and loss minimization control methods for an interior permanent magnet synchronous generator are compared. Permanent magnet synchronous generators have wide application in wind energy conversion systems due to high efficiency, high power density, high power factor and wide speed operating range. Maximum torque per ampere control method finds optimal d-and q-axis stator currents that produce desired electromagnetic torque while minimizing stator current magnitude. Loss minimization control method takes into account both copper and iron losses and finds optimal d- and q-axis stator currents that produce desired electromagnetic torque while minimizing total power loss. Characteristic curves for both control methods considering magnetic saturation are presented. Feed-forward torque control model developed in MATLAB/Simulink was used to verify described control methods.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129661617","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325312
P. Bogusz, M. Korkosz, A. Powrózek, J. Prokop
The paper presents analysis of a 4/2 switched reluctance motor design solution with reduced stator pole-arc. The analyzed model is designed to be used in a high-speed (45,000 rpm) drive. The stator pole-arc value change was accompanied by asymmetric structure of rotor magnetic circuit to allow start the motor from any rotor position. Static characteristics of the designed motor have been determined. Based on a field/circuit model, waveforms of currents, voltages, and the electromagnetic torque were determined. Exemplary torque characteristics, current and voltage waveforms were determined in laboratory conditions. Finally, conclusions concerning the designed machine with reduced stator pole-arc were presented.
{"title":"A two-phase switched reluctance motor with reduced stator pole-arc","authors":"P. Bogusz, M. Korkosz, A. Powrózek, J. Prokop","doi":"10.1109/EDPE.2015.7325312","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325312","url":null,"abstract":"The paper presents analysis of a 4/2 switched reluctance motor design solution with reduced stator pole-arc. The analyzed model is designed to be used in a high-speed (45,000 rpm) drive. The stator pole-arc value change was accompanied by asymmetric structure of rotor magnetic circuit to allow start the motor from any rotor position. Static characteristics of the designed motor have been determined. Based on a field/circuit model, waveforms of currents, voltages, and the electromagnetic torque were determined. Exemplary torque characteristics, current and voltage waveforms were determined in laboratory conditions. Finally, conclusions concerning the designed machine with reduced stator pole-arc were presented.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129991393","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325278
Igor Skrlec, Pavol Varga, M. Zalman
The paper demonstrates potential of application of nonlinear control theory for tracking control of induction motor drive for machining applications. Control algorithm is based on nonlinear control theory. The paper includes also analysis of influence of parameter variations. Information about state variables needed for control is obtained from a nonlinear Luenberger-type observer designed using the same methodology as the controller. The target application is motion control for machine tools using energy beam technologies.
{"title":"Tracking control of induction motor drive for machine tools","authors":"Igor Skrlec, Pavol Varga, M. Zalman","doi":"10.1109/EDPE.2015.7325278","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325278","url":null,"abstract":"The paper demonstrates potential of application of nonlinear control theory for tracking control of induction motor drive for machining applications. Control algorithm is based on nonlinear control theory. The paper includes also analysis of influence of parameter variations. Information about state variables needed for control is obtained from a nonlinear Luenberger-type observer designed using the same methodology as the controller. The target application is motion control for machine tools using energy beam technologies.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116342734","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325264
V. Valouch, P. Šimek, J. Skramlík
An analytical solution in a closed form of current responses of the B4 converter connected to the three-phase unbalanced grid via the LCL filter is presented in the contribution. The method can serve as a tool to analyze quickly current responses in steady states for a selected grid filter topologies and parameters.
{"title":"Analytical closed-form solution of current responses of four-switch converter connected to three-phase unbalanced grid","authors":"V. Valouch, P. Šimek, J. Skramlík","doi":"10.1109/EDPE.2015.7325264","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325264","url":null,"abstract":"An analytical solution in a closed form of current responses of the B4 converter connected to the three-phase unbalanced grid via the LCL filter is presented in the contribution. The method can serve as a tool to analyze quickly current responses in steady states for a selected grid filter topologies and parameters.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116803027","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 : 2015-11-12DOI: 10.1109/EDPE.2015.7325314
P. Bober, Ž. Ferková
Permanent magnet stepper motors are being applied as digital actuators for long time. This paper presents a simulation and dynamic analysis of a special type of two-phase permanent magnet stepper motor with the asymmetric stator. The measurement on the motor prototype reveals irregular step size for the half-stepping mode. Therefore, the model of the motor was built and several experiments were run to analyze its dynamic behavior. A simulation was used to find appropriate stator dimension arrangement to achieve regular step size. The results of position and torque simulation are presented for original and modified stator dimensions.
{"title":"Dynamic analysis of permanent magnet stepper motor with asymetric stator","authors":"P. Bober, Ž. Ferková","doi":"10.1109/EDPE.2015.7325314","DOIUrl":"https://doi.org/10.1109/EDPE.2015.7325314","url":null,"abstract":"Permanent magnet stepper motors are being applied as digital actuators for long time. This paper presents a simulation and dynamic analysis of a special type of two-phase permanent magnet stepper motor with the asymmetric stator. The measurement on the motor prototype reveals irregular step size for the half-stepping mode. Therefore, the model of the motor was built and several experiments were run to analyze its dynamic behavior. A simulation was used to find appropriate stator dimension arrangement to achieve regular step size. The results of position and torque simulation are presented for original and modified stator dimensions.","PeriodicalId":246203,"journal":{"name":"2015 International Conference on Electrical Drives and Power Electronics (EDPE)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114660156","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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