Pub Date : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581333
M. Silva, J. Trovão, P. Pereirinha, L. Marques
Electric vehicles (EVs) are fundamental components for a sustainable mobility. Unless a major technological breakthrough is achieved in energy storage and battery technology, EVs future will pass by multiple energy sources hybridisation, to benefit from the best characteristics of the energy sources available. In this paper, the energy and the mobility problems are introduced as well as the relevance of EVs in advanced and sustainable transportation. The EVs energy management issue is addressed together with the need for multiple energy sources hybridisation. Finally, a detailed description of the multiple energy sources monitoring system, particularly of its sensor data acquisition network, developed by the authors for their EV prototype, is presented along with collected data drawn from tests to one of the EV battery banks.
{"title":"Multiple energy sources monitoring system for electric vehicle","authors":"M. Silva, J. Trovão, P. Pereirinha, L. Marques","doi":"10.1109/SPEEDHAM.2008.4581333","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581333","url":null,"abstract":"Electric vehicles (EVs) are fundamental components for a sustainable mobility. Unless a major technological breakthrough is achieved in energy storage and battery technology, EVs future will pass by multiple energy sources hybridisation, to benefit from the best characteristics of the energy sources available. In this paper, the energy and the mobility problems are introduced as well as the relevance of EVs in advanced and sustainable transportation. The EVs energy management issue is addressed together with the need for multiple energy sources hybridisation. Finally, a detailed description of the multiple energy sources monitoring system, particularly of its sensor data acquisition network, developed by the authors for their EV prototype, is presented along with collected data drawn from tests to one of the EV battery banks.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133197945","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581096
T. Kasmieh
The paper presents a new stator flux estimator for the induction machine Direct Torque Control (DTC). The study aims to develop an estimator which gives good stator flux feedback values even when the stator resistor varies with the machine temperature. In DTC algorithm, stator electric equation is usually used to calculate the stator flux error. The value of this error is used with the torque error to determine the optimal voltage space vector that gives a simultaneous changing of the torque and the flux in the desired direction. The accuracy of the DTC depends on the proper calculation of the stator flux. The main objective is to build a stator flux estimator depending on the rotor electric equation. Since the time response of the rotor flux is bigger than the time response of the stator flux, this new estimator is less sensitive to the variation of the rotor resistor. The behaviour of the developed estimator is enhanced in an adaptive way to take into account the variation of the saturation level in the air gap of the induction machine.
{"title":"Adaptive stator flux estimator for the induction machine Direct Torque Control","authors":"T. Kasmieh","doi":"10.1109/SPEEDHAM.2008.4581096","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581096","url":null,"abstract":"The paper presents a new stator flux estimator for the induction machine Direct Torque Control (DTC). The study aims to develop an estimator which gives good stator flux feedback values even when the stator resistor varies with the machine temperature. In DTC algorithm, stator electric equation is usually used to calculate the stator flux error. The value of this error is used with the torque error to determine the optimal voltage space vector that gives a simultaneous changing of the torque and the flux in the desired direction. The accuracy of the DTC depends on the proper calculation of the stator flux. The main objective is to build a stator flux estimator depending on the rotor electric equation. Since the time response of the rotor flux is bigger than the time response of the stator flux, this new estimator is less sensitive to the variation of the rotor resistor. The behaviour of the developed estimator is enhanced in an adaptive way to take into account the variation of the saturation level in the air gap of the induction machine.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124297333","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581103
T. Weidinger, B. Piepenbreier
This paper presents an analysis of common-mode oscillations in electrical drive systems. The analysed oscillations occur particularly in electrical drive systems with active front end, common DC-link and long shielded motor cables. Because of resonant frequencies at 10 to 40 kHz low damping occurs. In the concerned frequency range switching operations generate a significant excitation. As the focus of this paper the common mode system of an electrical drive system is analysed and modelled. The damping behaviour of the choke and the switching of active front end and inverters have to be analysed very carefully. Simulations and measurements show apparent voltage stressing of motors, common mode losses and currents that disturb the drive system.
{"title":"Analysis and modelling of common-mode oscillations of electrical drive systems with active front end and long motor cables","authors":"T. Weidinger, B. Piepenbreier","doi":"10.1109/SPEEDHAM.2008.4581103","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581103","url":null,"abstract":"This paper presents an analysis of common-mode oscillations in electrical drive systems. The analysed oscillations occur particularly in electrical drive systems with active front end, common DC-link and long shielded motor cables. Because of resonant frequencies at 10 to 40 kHz low damping occurs. In the concerned frequency range switching operations generate a significant excitation. As the focus of this paper the common mode system of an electrical drive system is analysed and modelled. The damping behaviour of the choke and the switching of active front end and inverters have to be analysed very carefully. Simulations and measurements show apparent voltage stressing of motors, common mode losses and currents that disturb the drive system.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133833407","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581291
N. Giannoccaro, A. Messina, T. Sakamoto
The modelling and the control of the web handling systems have been studied for a long time; the correct modelling is necessary in order to design a better control system or to experimentally identify the plant parameters. On the web dynamics itself, lumped parametric expressions may be used to designate a web section between two adjacent drive rolls, and there is the necessity to incorporate the property of visco-elasticity to the web. In this paper the lumped model of a new web tension experimental system is updated; the model is based on the conservation of mass, torque balance and viscoelasticity (Voigt approach). The experimental system consists of four sections, each of which is driven by a servomotor with the speed and tension feedback, by using encoders and tension sensors. Usually these kinds of models are developed in the Laplace domain and the block scheme gives a graphic interpretation of the interaction between different sections. The block scheme transformation in a differential equation system in the time domain is considered in this paper; it requires the introduction of nonzero initial condition for the derivative of physical variables. The problem of validation has been dealt with in detail in this paper, simultaneously considering 2 different combinations of input data in open loop and a multivariable optimization method in order to estimate the unknown parameters. The results will show the accuracy of this kind of lumped parameters model for the complex experimental systems and useful information for successively designing an efficient control strategy.
{"title":"Updating of an experimental web tension control system model using a multivariable optimization method","authors":"N. Giannoccaro, A. Messina, T. Sakamoto","doi":"10.1109/SPEEDHAM.2008.4581291","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581291","url":null,"abstract":"The modelling and the control of the web handling systems have been studied for a long time; the correct modelling is necessary in order to design a better control system or to experimentally identify the plant parameters. On the web dynamics itself, lumped parametric expressions may be used to designate a web section between two adjacent drive rolls, and there is the necessity to incorporate the property of visco-elasticity to the web. In this paper the lumped model of a new web tension experimental system is updated; the model is based on the conservation of mass, torque balance and viscoelasticity (Voigt approach). The experimental system consists of four sections, each of which is driven by a servomotor with the speed and tension feedback, by using encoders and tension sensors. Usually these kinds of models are developed in the Laplace domain and the block scheme gives a graphic interpretation of the interaction between different sections. The block scheme transformation in a differential equation system in the time domain is considered in this paper; it requires the introduction of nonzero initial condition for the derivative of physical variables. The problem of validation has been dealt with in detail in this paper, simultaneously considering 2 different combinations of input data in open loop and a multivariable optimization method in order to estimate the unknown parameters. The results will show the accuracy of this kind of lumped parameters model for the complex experimental systems and useful information for successively designing an efficient control strategy.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122529304","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581219
G. Giadrossi, R. Menis, Giorgio Sulligoi, Alberto Tessarolo
The paper presents a small-signal stability analysis of voltage control systems employed onboard all-electric cruise liners. To realize the stability analysis, a model of shipboard power station voltage control system has been determined, moving from dynamic models of alternators, voltage regulators and loads. Reduced order models of alternators have been utilized, to simplify at best the analysis. Analysis results have been validated through numerical simulations, using a simulator of power station electromechanic quantities developed at the University of Trieste. Such simulator includes alternators, voltage and frequency regulators, breakers, protections and R-L loads. Numerical results obtained from simulations of both complete and reduced order models fully validate the analytical findings, while computation times are in the order of real-time simulations.
{"title":"Voltage stability analysis of all-electric cruise liners","authors":"G. Giadrossi, R. Menis, Giorgio Sulligoi, Alberto Tessarolo","doi":"10.1109/SPEEDHAM.2008.4581219","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581219","url":null,"abstract":"The paper presents a small-signal stability analysis of voltage control systems employed onboard all-electric cruise liners. To realize the stability analysis, a model of shipboard power station voltage control system has been determined, moving from dynamic models of alternators, voltage regulators and loads. Reduced order models of alternators have been utilized, to simplify at best the analysis. Analysis results have been validated through numerical simulations, using a simulator of power station electromechanic quantities developed at the University of Trieste. Such simulator includes alternators, voltage and frequency regulators, breakers, protections and R-L loads. Numerical results obtained from simulations of both complete and reduced order models fully validate the analytical findings, while computation times are in the order of real-time simulations.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"354 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122796003","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581306
T.A. Singo, A. Martinez, S. Saadate
In this paper, a hybrid energy storage system was implemented using batteries and ultracapacitors. The goal of the research is to manage and to optimize energy flow from sources considering consumer demand. Ultracapacitors are requested during power demand, so batteries function under better conditions by avoiding deep discharges. Ultracapacitors role is very important, particularly when temperature is considered. Our results were obtained by simulation in order to confirm the performance and advantages of the global system.
{"title":"Using ultracapacitors to optimize energy storage in a photovoltaic system","authors":"T.A. Singo, A. Martinez, S. Saadate","doi":"10.1109/SPEEDHAM.2008.4581306","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581306","url":null,"abstract":"In this paper, a hybrid energy storage system was implemented using batteries and ultracapacitors. The goal of the research is to manage and to optimize energy flow from sources considering consumer demand. Ultracapacitors are requested during power demand, so batteries function under better conditions by avoiding deep discharges. Ultracapacitors role is very important, particularly when temperature is considered. Our results were obtained by simulation in order to confirm the performance and advantages of the global system.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122940413","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581137
G. Consentino, G. Ardita
This paper studies and analyzes the root causes of anomalous failures of low-voltage p-channel power MOSFETs during the intrinsic diode recovery time in dV/dt test. In particular, the dV/dt characterization test is described and, afterwards, specific electrical tests are provided to explain the root causes. From the electrical results point of view, the dV/dt slew rate does not involve an intrinsic bipolar transistor turn-on, as usually assumed in these kinds of failure. Instead, a gate oxide degradation occurs causing the device to fail as a result of dV/dt repetitive events. Such kinds of gate oxide degradation were observed measuring the threshold voltage degradation after an established dV/dt train of impulses till the failure occured. Afterwards, the same train of impulses was implemented on a new series of samples, changing the circuit and, in particular, inserting a resistor in the gate electrode. In this test, no failures were observed, even if several repetitive trains of impulses were supplied.
{"title":"Anomalous failure in low-voltage p-chanel power MOSFETs during the intrinsic diode recovery time","authors":"G. Consentino, G. Ardita","doi":"10.1109/SPEEDHAM.2008.4581137","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581137","url":null,"abstract":"This paper studies and analyzes the root causes of anomalous failures of low-voltage p-channel power MOSFETs during the intrinsic diode recovery time in dV/dt test. In particular, the dV/dt characterization test is described and, afterwards, specific electrical tests are provided to explain the root causes. From the electrical results point of view, the dV/dt slew rate does not involve an intrinsic bipolar transistor turn-on, as usually assumed in these kinds of failure. Instead, a gate oxide degradation occurs causing the device to fail as a result of dV/dt repetitive events. Such kinds of gate oxide degradation were observed measuring the threshold voltage degradation after an established dV/dt train of impulses till the failure occured. Afterwards, the same train of impulses was implemented on a new series of samples, changing the circuit and, in particular, inserting a resistor in the gate electrode. In this test, no failures were observed, even if several repetitive trains of impulses were supplied.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121168980","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581066
C. Grabner
The considered converter-fed permanent magnet motor could alternatively be operated in two basically different states - the vector control mode or alternatively the brushless dc also known as electronically commutated mode. Several quality aspects concerning the system performance have been comparatively investigated in practical as well as theoretical manner. Focus is thereby given to the numerical analysis and previous evaluation of the well interaction between the novel axially un-skewed higher harmonic airgap wave based permanent magnet motor design and both completely different control algorithms.
{"title":"Vector control versus brushless DC operation of a higher harmonic airgap wave based permanent magnet motor","authors":"C. Grabner","doi":"10.1109/SPEEDHAM.2008.4581066","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581066","url":null,"abstract":"The considered converter-fed permanent magnet motor could alternatively be operated in two basically different states - the vector control mode or alternatively the brushless dc also known as electronically commutated mode. Several quality aspects concerning the system performance have been comparatively investigated in practical as well as theoretical manner. Focus is thereby given to the numerical analysis and previous evaluation of the well interaction between the novel axially un-skewed higher harmonic airgap wave based permanent magnet motor design and both completely different control algorithms.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121362644","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581138
M.I. Mihaiu
Synchronous rectifiers can improve power efficiency, particularly in low-voltage, medium power applications. By using power MOSFET with low Ron resistance in parallel with classical diode, the diode function is closely to ldquoideal dioderdquo. The paper presents the simulation results of a full wave rectifier circuits with control circuit made by the known IC (charge pumps, CMOS analogue switches and MOSFETpsilas). The known IC can be used to design a new IC for full wave synchronous rectifier. The main applications of synchronous rectifiers are for DC-DC converter but we propose the extension to the general purpose rectifier circuit. For low voltage output rectifiers (smaller than 5 V) the efficiency can increase with 15% by using synchronous technique. In the paper is presented a new IC structure for control the full wave synchronous rectifier.
{"title":"Toward the “ideal diode” using power MOSFET in full wave synchronous rectifiers for low voltage power supplies","authors":"M.I. Mihaiu","doi":"10.1109/SPEEDHAM.2008.4581138","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581138","url":null,"abstract":"Synchronous rectifiers can improve power efficiency, particularly in low-voltage, medium power applications. By using power MOSFET with low Ron resistance in parallel with classical diode, the diode function is closely to ldquoideal dioderdquo. The paper presents the simulation results of a full wave rectifier circuits with control circuit made by the known IC (charge pumps, CMOS analogue switches and MOSFETpsilas). The known IC can be used to design a new IC for full wave synchronous rectifier. The main applications of synchronous rectifiers are for DC-DC converter but we propose the extension to the general purpose rectifier circuit. For low voltage output rectifiers (smaller than 5 V) the efficiency can increase with 15% by using synchronous technique. In the paper is presented a new IC structure for control the full wave synchronous rectifier.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"1072 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116020096","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 : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581246
C. Canesin, F. Gonçalves, E. Leandro, J. Pinto
This paper is based on the analysis and implementation of a new drive system applied to refrigeration systems, complying with the restrictions imposed by the IEC standards (Harmonic/Flicker/EMI-Electromagnetic Interference restrictions), in order to obtain high efficiency, high power factor, reduced harmonic distortion in the input current and reduced electromagnetic interference, with excellent performance in temperature control of a refrigeration prototype system (automatic control, precision and high dynamic response). The proposal is replace the single-phase motor by a three-phase motor, in the conventional refrigeration system. In this way, a proper control technique can be applied, using a closed-loop (feedback control), that will allow an accurate adjustment of the desirable temperature. The proposed refrigeration prototype uses a 0.5 Hp three-phase motor and an open (Belt-Drive) Bitzer IY type compressor. The input rectifier stagepsilas features include the reduction in the input current ripple, the reduction in the output voltage ripple, the use of low stress devices, low volume for the EMI input filter, high input power factor (PF), and low total harmonic distortion (THD) in the input current, in compliance with the IEC61000-3-2 standards. The digital controller for the output three-phase inverter stage has been developed using a conventional voltage-frequency control (scalar V/f control), and a simplified stator oriented Vector control, in order to verify the feasibility and performance of the proposed digital controls for continuous temperature control applied at the refrigerator prototype.
{"title":"Variable speed refrigeration system with HPF input rectifier stage","authors":"C. Canesin, F. Gonçalves, E. Leandro, J. Pinto","doi":"10.1109/SPEEDHAM.2008.4581246","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581246","url":null,"abstract":"This paper is based on the analysis and implementation of a new drive system applied to refrigeration systems, complying with the restrictions imposed by the IEC standards (Harmonic/Flicker/EMI-Electromagnetic Interference restrictions), in order to obtain high efficiency, high power factor, reduced harmonic distortion in the input current and reduced electromagnetic interference, with excellent performance in temperature control of a refrigeration prototype system (automatic control, precision and high dynamic response). The proposal is replace the single-phase motor by a three-phase motor, in the conventional refrigeration system. In this way, a proper control technique can be applied, using a closed-loop (feedback control), that will allow an accurate adjustment of the desirable temperature. The proposed refrigeration prototype uses a 0.5 Hp three-phase motor and an open (Belt-Drive) Bitzer IY type compressor. The input rectifier stagepsilas features include the reduction in the input current ripple, the reduction in the output voltage ripple, the use of low stress devices, low volume for the EMI input filter, high input power factor (PF), and low total harmonic distortion (THD) in the input current, in compliance with the IEC61000-3-2 standards. The digital controller for the output three-phase inverter stage has been developed using a conventional voltage-frequency control (scalar V/f control), and a simplified stator oriented Vector control, in order to verify the feasibility and performance of the proposed digital controls for continuous temperature control applied at the refrigerator prototype.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116842826","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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