Pub Date : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980695
V. Boscaino, V. Ferraro, R. Miceli, C. Cavallaro, A. Raciti
In this paper a multisource renewable energy system simultaneously fed by photovoltaic and thermo-electric generators is proposed. The designed system provides a multi-input power converter which is properly controlled to achieve both output and input control. The output DC bus is regulated to achieve a proper supply of the output energy buffer. On each input port of the power converter a control on the source operating point is applied to achieve the maximum power transfer from each renewable source. Experimental results are shown to test the efficiency of the proposed solution.
{"title":"Performance evaluation of a multisource renewable power converter prototype","authors":"V. Boscaino, V. Ferraro, R. Miceli, C. Cavallaro, A. Raciti","doi":"10.1109/EPEPEMC.2014.6980695","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980695","url":null,"abstract":"In this paper a multisource renewable energy system simultaneously fed by photovoltaic and thermo-electric generators is proposed. The designed system provides a multi-input power converter which is properly controlled to achieve both output and input control. The output DC bus is regulated to achieve a proper supply of the output energy buffer. On each input port of the power converter a control on the source operating point is applied to achieve the maximum power transfer from each renewable source. Experimental results are shown to test the efficiency of the proposed solution.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114771467","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980536
E. K. Appiah, A. Jimoh, A. Ogunjuyigbe, J. Munda
In this paper, the performance behaviour of a symmetrical higher phase order (hpo) squirrel-cage induction machine is carried out. The machine stator winding is connected to a balanced phase supply and the machine performance characteristics observed during normal operation in loaded and unloaded conditions. The hpo squirrel-cage induction machine is investigated using the generalised theory method (dq0) and the finite element method (FEM). The steady state and the dynamic results characterising machine performance are generated. Tests are conducted on a 1.5 kW experimental machine to validate the results obtained from the theoretical studies. The results of the two methods used are compared with the experimental. It is shown that the generalised theory method have a higher performance as compared to finite element analysis (FEA) during the steady state analysis.
{"title":"Dynamic and steady state performance of higher phase order (HPO) squirrel cage induction machine","authors":"E. K. Appiah, A. Jimoh, A. Ogunjuyigbe, J. Munda","doi":"10.1109/EPEPEMC.2014.6980536","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980536","url":null,"abstract":"In this paper, the performance behaviour of a symmetrical higher phase order (hpo) squirrel-cage induction machine is carried out. The machine stator winding is connected to a balanced phase supply and the machine performance characteristics observed during normal operation in loaded and unloaded conditions. The hpo squirrel-cage induction machine is investigated using the generalised theory method (dq0) and the finite element method (FEM). The steady state and the dynamic results characterising machine performance are generated. Tests are conducted on a 1.5 kW experimental machine to validate the results obtained from the theoretical studies. The results of the two methods used are compared with the experimental. It is shown that the generalised theory method have a higher performance as compared to finite element analysis (FEA) during the steady state analysis.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116895834","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980546
D. Stando, M. Kazmierkowski, P. Chudzik
The paper presents a speed sensorless finite state predictive torque control (FS-PTC) for voltage source inverter-fed induction motor drive. The simple model reference adaptive system (MRAS) based flux vector observer enabling speed sensor elimination is also presented. The novelty of the presented system lays in combination of the FS-PTC structure with simple observer for both torque/flux and speed sensorless control including flux weakening range. Finally, the description of the 50 kW drive and simulation results illustrating properties of the system are given.
{"title":"Sensorless predictive torque control of induction motor drive operating in wide speed range — Simulation study","authors":"D. Stando, M. Kazmierkowski, P. Chudzik","doi":"10.1109/EPEPEMC.2014.6980546","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980546","url":null,"abstract":"The paper presents a speed sensorless finite state predictive torque control (FS-PTC) for voltage source inverter-fed induction motor drive. The simple model reference adaptive system (MRAS) based flux vector observer enabling speed sensor elimination is also presented. The novelty of the presented system lays in combination of the FS-PTC structure with simple observer for both torque/flux and speed sensorless control including flux weakening range. Finally, the description of the 50 kW drive and simulation results illustrating properties of the system are given.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"60 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121948034","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980685
E. Yeşilbağ, L. T. Ergene
In this paper, the design and simulation of the field oriented controlled (FOC) permanent magnet synchronous motor (PMSM) are studied. PMSMs became important to recent years due to their good dynamic performances and better characteristic features. Mathematical model of PMSM is presented in the paper. FOC scheme, which is one of the most commonly used control methods of industrial applications, is designed by using this model. This control scheme is simulated on Powersim (PSIM) and PMSM based on FOC is analyzed with two different operating conditions. According to simulation results, characteristics of the PMSM are obtained. The error analysis is also presented by comparing these derived characteristics and the experimental results. The relation between the electromagnetic torque and the q-axis current of PMSM is also presented.
{"title":"Field oriented control of permanent magnet synchronous motors used in washers","authors":"E. Yeşilbağ, L. T. Ergene","doi":"10.1109/EPEPEMC.2014.6980685","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980685","url":null,"abstract":"In this paper, the design and simulation of the field oriented controlled (FOC) permanent magnet synchronous motor (PMSM) are studied. PMSMs became important to recent years due to their good dynamic performances and better characteristic features. Mathematical model of PMSM is presented in the paper. FOC scheme, which is one of the most commonly used control methods of industrial applications, is designed by using this model. This control scheme is simulated on Powersim (PSIM) and PMSM based on FOC is analyzed with two different operating conditions. According to simulation results, characteristics of the PMSM are obtained. The error analysis is also presented by comparing these derived characteristics and the experimental results. The relation between the electromagnetic torque and the q-axis current of PMSM is also presented.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124855989","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980640
G. Ertasgin, D. Whaley, N. Ertugrul, W. Soong
Small-scale photovoltaic (PV) systems commonly use single-phase grid-connected (GC) inverters to feed the generated power into the power grid. In this case the instantaneous GC inverter output power shows a 100 Hz fluctuation. However it is required to keep the instantaneous PV array output power as constant as possible to maximise the average PV array output power. Thus all GC inverters use an energy storage component to maintain the instantaneous power fluctuations seen by the PV array at an acceptable level. This paper analyses the relationship between the average power reduction of solar cells and the PV array voltage and current output ripple, and the relationship between the PV array output ripple and the DC link inductor or capacitor sizing.
{"title":"Energy storage element sizing for single-phase grid-connected photovoltaic converter","authors":"G. Ertasgin, D. Whaley, N. Ertugrul, W. Soong","doi":"10.1109/EPEPEMC.2014.6980640","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980640","url":null,"abstract":"Small-scale photovoltaic (PV) systems commonly use single-phase grid-connected (GC) inverters to feed the generated power into the power grid. In this case the instantaneous GC inverter output power shows a 100 Hz fluctuation. However it is required to keep the instantaneous PV array output power as constant as possible to maximise the average PV array output power. Thus all GC inverters use an energy storage component to maintain the instantaneous power fluctuations seen by the PV array at an acceptable level. This paper analyses the relationship between the average power reduction of solar cells and the PV array voltage and current output ripple, and the relationship between the PV array output ripple and the DC link inductor or capacitor sizing.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128319138","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980516
I. Colak, E. Kabalci, Gokhan Keven
The Current control of voltage source inverters are realized by many techniques such as Proportional Integral (PI), Proportional Resonant (PR) and Hysteresis Current Control. The PR control works on an αβ frame and it involves less calculation process comparing to PI control. The αβ frame should be converted to dq frame in PI control. The PR control can easily implemented with digital control techniques due to the slow sampling frequency. PR control has very high proportional and integral gain at resonance frequency where it can mitigate low order harmonics. PR control can be implemented with other digital control techniques. In this study, a Seven-Level asymmetric cascade multilevel inverter simulation is realized with PR control. As a result of structure developed, the Total Harmonic Distortion (THD) is more lowered with respect to the structure without using PR control.
{"title":"Simulation of a Seven-Level asymmetric cascade multilevel inverter with PR control","authors":"I. Colak, E. Kabalci, Gokhan Keven","doi":"10.1109/EPEPEMC.2014.6980516","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980516","url":null,"abstract":"The Current control of voltage source inverters are realized by many techniques such as Proportional Integral (PI), Proportional Resonant (PR) and Hysteresis Current Control. The PR control works on an αβ frame and it involves less calculation process comparing to PI control. The αβ frame should be converted to dq frame in PI control. The PR control can easily implemented with digital control techniques due to the slow sampling frequency. PR control has very high proportional and integral gain at resonance frequency where it can mitigate low order harmonics. PR control can be implemented with other digital control techniques. In this study, a Seven-Level asymmetric cascade multilevel inverter simulation is realized with PR control. As a result of structure developed, the Total Harmonic Distortion (THD) is more lowered with respect to the structure without using PR control.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128424330","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980650
M. Wolkiewicz, G. Tarchała, C. T. Kowalski
This paper deals with monitoring and diagnosis of stator windings damages in vector-controlled induction motor (IM) drive. The article proposes a simple method of shorted turns detection using only virtual control and decoupling signals from the classical Direct Field Oriented Control (DFOC) method. The diagnosis of the stator windings faults is based on the analysis of twice the fundamental frequency of mentioned signals. The proposed method is illustrated using experimental test results obtained for 1.5 kW induction motor, especially prepared to allow physical modelling of shorted turns.
{"title":"Monitoring of stator inter-turn short circuits in the direct field oriented controlled induction motor","authors":"M. Wolkiewicz, G. Tarchała, C. T. Kowalski","doi":"10.1109/EPEPEMC.2014.6980650","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980650","url":null,"abstract":"This paper deals with monitoring and diagnosis of stator windings damages in vector-controlled induction motor (IM) drive. The article proposes a simple method of shorted turns detection using only virtual control and decoupling signals from the classical Direct Field Oriented Control (DFOC) method. The diagnosis of the stator windings faults is based on the analysis of twice the fundamental frequency of mentioned signals. The proposed method is illustrated using experimental test results obtained for 1.5 kW induction motor, especially prepared to allow physical modelling of shorted turns.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129628000","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980631
A. Slutej, F. Kolonic, J. Matuško, Š. Ileš
The paper summarizes the most important advances of the used crane control technology in perspective of semi-automatic/automatic operation of Electrical Overhead Travelling (EOT) cranes. Those cranes are often used in the heavy industrial environment, typically steel-mill applications and crane container handling. Most of them need sensor and/or sensorless technology in order to realize specific tasks with very strict safety categorized regulations for most electro-mechanical motions. Operation in harsh environment has significant impact during the crane's manipulation phase of crane control devices. Faster and more productive cranes demand a highly efficient Real-Time Controller (RTC), as well as overriding system, to control actuators in the closed loop. Monitoring and production statistic as functional subset of the Real Time (RT) controller is not presented in details in this paper.
{"title":"Control of safety critical heavy industrial applications","authors":"A. Slutej, F. Kolonic, J. Matuško, Š. Ileš","doi":"10.1109/EPEPEMC.2014.6980631","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980631","url":null,"abstract":"The paper summarizes the most important advances of the used crane control technology in perspective of semi-automatic/automatic operation of Electrical Overhead Travelling (EOT) cranes. Those cranes are often used in the heavy industrial environment, typically steel-mill applications and crane container handling. Most of them need sensor and/or sensorless technology in order to realize specific tasks with very strict safety categorized regulations for most electro-mechanical motions. Operation in harsh environment has significant impact during the crane's manipulation phase of crane control devices. Faster and more productive cranes demand a highly efficient Real-Time Controller (RTC), as well as overriding system, to control actuators in the closed loop. Monitoring and production statistic as functional subset of the Real Time (RT) controller is not presented in details in this paper.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128988872","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980641
Y. Rozanov, M. Lepanov, M. Kiselev
The paper presents the multifunctional controller based on ac-dc power electronic converter. The controller is intended for nonactive power compensation in three-phase systems, and performs functions of reactive power control, active filtering and load balancing. It enables to improve the power quality in distribution power system. The realization of control algorithms using synchronous rotating frame (abc/dq-transformation) and pulse-width modulation is considered. The MatLab/Simulink model was developed to study the controller operation and efficiency of proposed algorithms for realization of different functions in case of nonlinear and/or unbalanced load.
{"title":"Multifunctional power quality controller based on power electronic converter","authors":"Y. Rozanov, M. Lepanov, M. Kiselev","doi":"10.1109/EPEPEMC.2014.6980641","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980641","url":null,"abstract":"The paper presents the multifunctional controller based on ac-dc power electronic converter. The controller is intended for nonactive power compensation in three-phase systems, and performs functions of reactive power control, active filtering and load balancing. It enables to improve the power quality in distribution power system. The realization of control algorithms using synchronous rotating frame (abc/dq-transformation) and pulse-width modulation is considered. The MatLab/Simulink model was developed to study the controller operation and efficiency of proposed algorithms for realization of different functions in case of nonlinear and/or unbalanced load.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125659302","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 : 2014-12-11DOI: 10.1109/EPEPEMC.2014.6980570
A. A. Gannshin, V. Meleshin, S. Sachkov, D. V. Zhiklenkov
Railways in many countries are supplied by 3 kV DC voltage. An electrical insulation between the high voltage and the consumer side at the basis of a medium frequency transformer using 6.5 kV IGBT modules is a recurring theme of a number publications. An auxiliary power converter (APC) for locomotives with output power of 100 kW surviving external actions and interior faults, having improved energy characteristics is proposed in this paper. A theoretical analysis has been endorsed by modeling and experiments.
{"title":"Railway auxiliary power converter operating with 3 kV DC supply line on the basis of 6.5 kV IGBT modules","authors":"A. A. Gannshin, V. Meleshin, S. Sachkov, D. V. Zhiklenkov","doi":"10.1109/EPEPEMC.2014.6980570","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2014.6980570","url":null,"abstract":"Railways in many countries are supplied by 3 kV DC voltage. An electrical insulation between the high voltage and the consumer side at the basis of a medium frequency transformer using 6.5 kV IGBT modules is a recurring theme of a number publications. An auxiliary power converter (APC) for locomotives with output power of 100 kW surviving external actions and interior faults, having improved energy characteristics is proposed in this paper. A theoretical analysis has been endorsed by modeling and experiments.","PeriodicalId":325670,"journal":{"name":"2014 16th International Power Electronics and Motion Control Conference and Exposition","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125415433","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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