Pub Date : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581201
M. Perdigão, J. Alonso, M. D. Dalla Costa, E. S. Saraiva
In magnetically-controlled electronic ballasts, in order to perform the lamp start and dimming, the typical resonant inductor is substituted by a variable inductor. This variable inductor is controlled by a dc current, which modifies the resonant tank in order to vary the rms value of the lamp current and thereby the luminous output. In order to perform optimization studies, computational models, which accurately simulate the real behavior of the fluorescent lamp and the variable inductor, in magnetically-controlled electronic ballasts, are extremely necessary. Traditionally, they are implemented in circuit-simulation programs, such as SPICE-based programs. In this paper it is demonstrated how a MATLAB/Simulink compatible behavioral model of a variable inductor can be developed easily using simple laboratory measurements. The resulting model includes coil losses but not temperature effects. Design criteria and practical verifications are included to confirm this model. Theoretical predictions are verified with the experimental results for a 36 W TLD Philips fluorescent lamp which has also been previously tested and modeled experimentally, in order to derive the dimming characteristics.
在磁控电子镇流器中，为了实现灯的启动和调光，用可变电感代替了典型的谐振电感。这种可变电感由直流电流控制，直流电流改变谐振槽以改变灯电流的有效值，从而改变发光输出。为了进行优化研究，精确模拟荧光灯和可变电感在磁控电子镇流器中的真实行为的计算模型是非常必要的。传统上，它们是在电路仿真程序中实现的，例如基于spice的程序。本文演示了如何使用简单的实验室测量轻松地开发出与MATLAB/Simulink兼容的可变电感器行为模型。所得模型包括线圈损耗，但不包括温度效应。设计准则和实际验证验证了该模型。理论预测与36 W TLD飞利浦荧光灯的实验结果进行了验证，该荧光灯也已经进行了测试和实验建模，以得出调光特性。
{"title":"A variable inductor MATLAB/Simulink behavioral model for application in magnetically-controlled electronic ballasts","authors":"M. Perdigão, J. Alonso, M. D. Dalla Costa, E. S. Saraiva","doi":"10.1109/SPEEDHAM.2008.4581201","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581201","url":null,"abstract":"In magnetically-controlled electronic ballasts, in order to perform the lamp start and dimming, the typical resonant inductor is substituted by a variable inductor. This variable inductor is controlled by a dc current, which modifies the resonant tank in order to vary the rms value of the lamp current and thereby the luminous output. In order to perform optimization studies, computational models, which accurately simulate the real behavior of the fluorescent lamp and the variable inductor, in magnetically-controlled electronic ballasts, are extremely necessary. Traditionally, they are implemented in circuit-simulation programs, such as SPICE-based programs. In this paper it is demonstrated how a MATLAB/Simulink compatible behavioral model of a variable inductor can be developed easily using simple laboratory measurements. The resulting model includes coil losses but not temperature effects. Design criteria and practical verifications are included to confirm this model. Theoretical predictions are verified with the experimental results for a 36 W TLD Philips fluorescent lamp which has also been previously tested and modeled experimentally, in order to derive the dimming characteristics.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"6 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":"128494759","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.2008.4581255
J. Žák, Z. Peroutka
This contribution deals with the prototype of the main traction converter with medium frequency transformer for AC trolley wire fed locomotives. The attention is paid to the new master control and diagnostic unit. The designed master control unit has been programmed in the LabView development environment. This master unit ensures a human interface between a user and a digital signal processor. In this case, the master unit makes possible both control and diagnostic operations of the laboratory prototype of the traction converter. The master unit was tested by experiments performed on designed traction converter prototype of rated power of 12kW.
{"title":"Laboratory prototype of traction converter with medium-frequency transformer: Master control and diagnostic unit","authors":"J. Žák, Z. Peroutka","doi":"10.1109/SPEEDHAM.2008.4581255","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581255","url":null,"abstract":"This contribution deals with the prototype of the main traction converter with medium frequency transformer for AC trolley wire fed locomotives. The attention is paid to the new master control and diagnostic unit. The designed master control unit has been programmed in the LabView development environment. This master unit ensures a human interface between a user and a digital signal processor. In this case, the master unit makes possible both control and diagnostic operations of the laboratory prototype of the traction converter. The master unit was tested by experiments performed on designed traction converter prototype of rated power of 12kW.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"2 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":"131358786","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.2008.4581276
M. Dobriceanu, A. Bitoleanu, M. Popescu, E. Subţirelu, S. Enache
The paper illustrates the electrical stations of medium voltage in which there is going to be implemented an automated multivariable system, based of software packages for data acquisition, storing, data transmission, processing, monitoring, analysis and which to allow the monitoring of a large number of parameters. The purpose of the local data acquisition, protection and control equipment and of the monitoring system is to befriend the human factor in taking optimal decisions in the plan of monitoring the quality of electrical energy in distribution stations, by offering adequate information in a format specific to the function and work place.
{"title":"Combined protection and control equipment for applications in the medium-voltage area","authors":"M. Dobriceanu, A. Bitoleanu, M. Popescu, E. Subţirelu, S. Enache","doi":"10.1109/SPEEDHAM.2008.4581276","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581276","url":null,"abstract":"The paper illustrates the electrical stations of medium voltage in which there is going to be implemented an automated multivariable system, based of software packages for data acquisition, storing, data transmission, processing, monitoring, analysis and which to allow the monitoring of a large number of parameters. The purpose of the local data acquisition, protection and control equipment and of the monitoring system is to befriend the human factor in taking optimal decisions in the plan of monitoring the quality of electrical energy in distribution stations, by offering adequate information in a format specific to the function and work place.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"1 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":"130283618","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.2008.4581088
M. Abroshan, K. Malekian, J. Milimonfared, B.A. Varmiab
This paper presents an optimum direct thrust force control for interior permanent magnet linear synchronous motor (PMLSM) over wide velocity range in which the maximum thrust force per ampere (MTPA) strategy is used below the base velocity and field weakening strategy is used above the base velocity. Using MTPA strategy, copper losses is minimized in constant force region, and using field weakening strategy, maximum capacity of motor is utilized in constant power region. The proposed scheme incorporates all the optimal strategies and operates the drive within the voltage and current limits of the motor/inverter. Simulation results for a prototype interior permanent magnet linear synchronous motor demonstrate that the MTPA and field weakening strategies can be successfully implemented for direct thrust force controlled PMLSM drives.
{"title":"An optimal direct thrust force control for interior Permanent Magnet Linear Synchronous Motors incorporating field weakening","authors":"M. Abroshan, K. Malekian, J. Milimonfared, B.A. Varmiab","doi":"10.1109/SPEEDHAM.2008.4581088","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581088","url":null,"abstract":"This paper presents an optimum direct thrust force control for interior permanent magnet linear synchronous motor (PMLSM) over wide velocity range in which the maximum thrust force per ampere (MTPA) strategy is used below the base velocity and field weakening strategy is used above the base velocity. Using MTPA strategy, copper losses is minimized in constant force region, and using field weakening strategy, maximum capacity of motor is utilized in constant power region. The proposed scheme incorporates all the optimal strategies and operates the drive within the voltage and current limits of the motor/inverter. Simulation results for a prototype interior permanent magnet linear synchronous motor demonstrate that the MTPA and field weakening strategies can be successfully implemented for direct thrust force controlled PMLSM drives.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"3 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":"127292555","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.2008.4581263
E. Babaei, Seyed Hossein Hosseini
In this paper, a new topology of cascaded multilevel converter using a reduced number of insulated gate driver circuits and voltage standing on switches is proposed. The proposed topology results in reduction of installation area and cost and has simplicity of control system. This structure consists of series connected sub-multilevel converters blocks. Three algorithms for determination of dc voltage source magnitudes have been presented, too. The validity of the analysis results has been proved by experimental results.
{"title":"New multilevel converter topology with minimum number of gate driver circuits","authors":"E. Babaei, Seyed Hossein Hosseini","doi":"10.1109/SPEEDHAM.2008.4581263","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581263","url":null,"abstract":"In this paper, a new topology of cascaded multilevel converter using a reduced number of insulated gate driver circuits and voltage standing on switches is proposed. The proposed topology results in reduction of installation area and cost and has simplicity of control system. This structure consists of series connected sub-multilevel converters blocks. Three algorithms for determination of dc voltage source magnitudes have been presented, too. The validity of the analysis results has been proved by experimental results.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"63 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":"121586012","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.2008.4581323
M. Miyatake, K. Matsuda
The optimal operation of rail vehicle minimizing total energy consumption is discussed in this paper. Many works on the application of the energy storage devices to trains were reported, however, they did not deal enough with the optimality of the control of the devices. The authors have developed the mathematical model based on a general optimization technique, Sequential Quadratic Programming. The proposed method can determine the optimal acceleration/deceleration and current commands at every sampling point under fixed conditions of transfer time and distance. Using the proposed method, simulations were implemented in some cases. The electric double layer capacitor (EDLC) is assumed as an energy storage device in our study, because of its high power density etc. The trend of optimal solutions such as values of control inputs and energy consumption is finally discussed.
{"title":"Optimal speed and charge/discharge control of a train with onboard energy storage devices for minimum energy operation","authors":"M. Miyatake, K. Matsuda","doi":"10.1109/SPEEDHAM.2008.4581323","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581323","url":null,"abstract":"The optimal operation of rail vehicle minimizing total energy consumption is discussed in this paper. Many works on the application of the energy storage devices to trains were reported, however, they did not deal enough with the optimality of the control of the devices. The authors have developed the mathematical model based on a general optimization technique, Sequential Quadratic Programming. The proposed method can determine the optimal acceleration/deceleration and current commands at every sampling point under fixed conditions of transfer time and distance. Using the proposed method, simulations were implemented in some cases. The electric double layer capacitor (EDLC) is assumed as an energy storage device in our study, because of its high power density etc. The trend of optimal solutions such as values of control inputs and energy consumption is finally discussed.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"23 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":"121600902","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.2008.4581086
N. S. Gameiro, A. J. M. Cardoso
A fault tolerant control strategy of SRM drives is presented. The mean rotor mechanical speed is sustained, under the absence of one motor phase, due to an increase in the electromagnetic torque reference and the consequent increase of the healthy phases current amplitudes. Dynamic problems as excessive pick phase current and electromagnetic torque overshoot, due to the lack of one motor phase, are avoided using appropriate changes in the phase current controller. The adopted SRM control strategy, based on the electromagnetic torque regulation, is clearly explained for normal and faulty operating conditions. Both dynamic operating conditions are analyzed. Time-domain waveforms of the phase currents, power converter supply current, electromagnetic torque and mechanical speed are presented and discussed as well as the spectral analysis of the power converter supply current and electromagnetic torque.
{"title":"Fault tolerant control strategy of SRM drives","authors":"N. S. Gameiro, A. J. M. Cardoso","doi":"10.1109/SPEEDHAM.2008.4581086","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581086","url":null,"abstract":"A fault tolerant control strategy of SRM drives is presented. The mean rotor mechanical speed is sustained, under the absence of one motor phase, due to an increase in the electromagnetic torque reference and the consequent increase of the healthy phases current amplitudes. Dynamic problems as excessive pick phase current and electromagnetic torque overshoot, due to the lack of one motor phase, are avoided using appropriate changes in the phase current controller. The adopted SRM control strategy, based on the electromagnetic torque regulation, is clearly explained for normal and faulty operating conditions. Both dynamic operating conditions are analyzed. Time-domain waveforms of the phase currents, power converter supply current, electromagnetic torque and mechanical speed are presented and discussed as well as the spectral analysis of the power converter supply current and electromagnetic torque.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"107 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":"121908909","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.2008.4581268
Jong Kwan Park, K. Cho, W. Oh, K. Sol, Chigak In
The dead time which is inserted in switching signals of PWM voltage source inverters distorts its output. As a result, the deviations of real fundamental voltage and phase compared with the reference are occurred. And also the harmonics of its output are increased. In this paper, numerical analysis of the error voltage on the output of inverter according to the switching dead time is presented. And the calculation results of fundamental voltage gain and phase deviations are presented.
{"title":"Analysis of the errors on the output voltage of inverter caused by switching dead times","authors":"Jong Kwan Park, K. Cho, W. Oh, K. Sol, Chigak In","doi":"10.1109/SPEEDHAM.2008.4581268","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581268","url":null,"abstract":"The dead time which is inserted in switching signals of PWM voltage source inverters distorts its output. As a result, the deviations of real fundamental voltage and phase compared with the reference are occurred. And also the harmonics of its output are increased. In this paper, numerical analysis of the error voltage on the output of inverter according to the switching dead time is presented. And the calculation results of fundamental voltage gain and phase deviations are presented.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"100 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":"121362433","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.2008.4581243
A. Dell'Aquila, A. Lecci
An optimization method is proposed that is based on particle swarm optimization, and is utilized to compute the best parameters of a resonant controller. The resonant controller is applied to properly inject compensation waveforms in a power quality application. A basic particle swarm implementation and a modified one are presented in order to address a practice to use this optimization technique to power converters control issues. Several simulation results are shown in order to highlight the viability of the described solution.
{"title":"PSO-based control optimization of power converters","authors":"A. Dell'Aquila, A. Lecci","doi":"10.1109/SPEEDHAM.2008.4581243","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581243","url":null,"abstract":"An optimization method is proposed that is based on particle swarm optimization, and is utilized to compute the best parameters of a resonant controller. The resonant controller is applied to properly inject compensation waveforms in a power quality application. A basic particle swarm implementation and a modified one are presented in order to address a practice to use this optimization technique to power converters control issues. Several simulation results are shown in order to highlight the viability of the described solution.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"28 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":"126113205","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.2008.4581188
C. Molfese, P. Schipani, M. Capaccioli, G. Sedmak, S. D'orsi
A last generation Survey Telescope requires a large amount of electromechanical actuators and sensors, completed with control electronics to make functioning not only the main axes to point and track the observed object, but a lot of subsystems as well, such as the Active Optics, the Probe, the Atmospheric Dispersion Corrector and the Hydraulic Bearings System. Each of them is based on different kinds of motors and transducers and related electronics, fulfilling the different subsystems requirements. Here the VST (VLT Survey Telescope) case is reported, giving a general overview of the main control electronics. The VST is a 2.6 m class Alt-Azimuthal Survey Telescope to be installed at Cerro Paranal in Northern Chile, at the European Southern Observatory (ESO) premises, one of the best observation sites worldwide. The VST Telescope was designed and realized by the I.N.A.F., Osservatorio Astronomico di Capodimonte. Nowadays its main structure has been already shipped to Chile, together with the Altitude and Azimuth axes control systems, meanwhile the subsystems controlling the two mirrors are still under completion in Naples.
{"title":"Survey Telescope control electronics","authors":"C. Molfese, P. Schipani, M. Capaccioli, G. Sedmak, S. D'orsi","doi":"10.1109/SPEEDHAM.2008.4581188","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581188","url":null,"abstract":"A last generation Survey Telescope requires a large amount of electromechanical actuators and sensors, completed with control electronics to make functioning not only the main axes to point and track the observed object, but a lot of subsystems as well, such as the Active Optics, the Probe, the Atmospheric Dispersion Corrector and the Hydraulic Bearings System. Each of them is based on different kinds of motors and transducers and related electronics, fulfilling the different subsystems requirements. Here the VST (VLT Survey Telescope) case is reported, giving a general overview of the main control electronics. The VST is a 2.6 m class Alt-Azimuthal Survey Telescope to be installed at Cerro Paranal in Northern Chile, at the European Southern Observatory (ESO) premises, one of the best observation sites worldwide. The VST Telescope was designed and realized by the I.N.A.F., Osservatorio Astronomico di Capodimonte. Nowadays its main structure has been already shipped to Chile, together with the Altitude and Azimuth axes control systems, meanwhile the subsystems controlling the two mirrors are still under completion in Naples.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"7 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":"127764615","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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