Pub Date : 2008-06-11DOI: 10.1109/SPEEDHAM.2008.4581210
T. Nagai, Shigeto Aramaki
The skill of robotic task has been studied in many research institutes. We have been researching the skill for the assembly of the consumer products. We has developed the original knowledge representation for robotic assembly task with the position and force control. We proposed the representation method of the skill that a human has and the construction method of a knowledge base for robotic assembly task. In this paper, we analyzed the assembly task with the click action. And, we proposed the knowledge representation that checked the differential value of the sensor. As a result, the representation of the assembly task with the click action became possible. In addition, we programmed the proposed representation and confirmed the assembly work in an actual robot with the click action. Then, the effectiveness of the representation was confirmed.
{"title":"The representation method of robotic assembly task with click action","authors":"T. Nagai, Shigeto Aramaki","doi":"10.1109/SPEEDHAM.2008.4581210","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581210","url":null,"abstract":"The skill of robotic task has been studied in many research institutes. We have been researching the skill for the assembly of the consumer products. We has developed the original knowledge representation for robotic assembly task with the position and force control. We proposed the representation method of the skill that a human has and the construction method of a knowledge base for robotic assembly task. In this paper, we analyzed the assembly task with the click action. And, we proposed the knowledge representation that checked the differential value of the sensor. As a result, the representation of the assembly task with the click action became possible. In addition, we programmed the proposed representation and confirmed the assembly work in an actual robot with the click action. Then, the effectiveness of the representation was confirmed.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"20 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":"125177549","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.2008.4581201
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.2008.4581243
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.2008.4581088
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.2008.4581247
Ling Su, D. Ma
Driven by the proliferation of implantable and self-powered electronic devices, low-voltage, low-power, high-efficiency DC-DC power converters are on high demands. This paper first reviews the state-of-the-arts charge pumps, with focus on power loss minimization, power stage architectures and control signaling. A new four-phase complimentary charge pump is then proposed. By employing the techniques of minimizing the reversion loss and conduction loss and interleaving the power stage sub-cells, the design achieves high efficiency and low ripple voltages without compromising fabrication cost. A sub-threshold clock generator is employed to further reduce the power loss in the controller. The charge pump was designed with IBM 180 nm CMOS process with fully on-chip pumping capacitors. HSPICE simulations show that the charge pump maintains the efficiency above 90% within up to 5 mW power range, with the maximum efficiency of 92.01%. The ripple voltage is also much improved in comparison with its counterparts.
{"title":"Design and optimization of integrated low-voltage low-power monolithic CMOS charge pumps","authors":"Ling Su, D. Ma","doi":"10.1109/SPEEDHAM.2008.4581247","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581247","url":null,"abstract":"Driven by the proliferation of implantable and self-powered electronic devices, low-voltage, low-power, high-efficiency DC-DC power converters are on high demands. This paper first reviews the state-of-the-arts charge pumps, with focus on power loss minimization, power stage architectures and control signaling. A new four-phase complimentary charge pump is then proposed. By employing the techniques of minimizing the reversion loss and conduction loss and interleaving the power stage sub-cells, the design achieves high efficiency and low ripple voltages without compromising fabrication cost. A sub-threshold clock generator is employed to further reduce the power loss in the controller. The charge pump was designed with IBM 180 nm CMOS process with fully on-chip pumping capacitors. HSPICE simulations show that the charge pump maintains the efficiency above 90% within up to 5 mW power range, with the maximum efficiency of 92.01%. The ripple voltage is also much improved in comparison with its counterparts.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"82 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":"127647714","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.2008.4581140
M. Jokinen, S. Saarakkala, M. Niemela, R. Pollanen, J. Pyrhonen
Production rate plays an important role in industrial applications, which means higher demands for accelerations and speeds of the systems. The requirements for accuracy and repeatability are also increasing. A solution for these demands is a high-speed tooth belt linear drive; however, the drawbacks of system of this kind are non-linear friction and flexibility of the belt, which make the precision control of the system difficult. In this paper, the frictions and flexibility of the high-speed tooth belt linear drive are analyzed.
{"title":"Physical drawbacks of linear high-speed tooth belt drives","authors":"M. Jokinen, S. Saarakkala, M. Niemela, R. Pollanen, J. Pyrhonen","doi":"10.1109/SPEEDHAM.2008.4581140","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581140","url":null,"abstract":"Production rate plays an important role in industrial applications, which means higher demands for accelerations and speeds of the systems. The requirements for accuracy and repeatability are also increasing. A solution for these demands is a high-speed tooth belt linear drive; however, the drawbacks of system of this kind are non-linear friction and flexibility of the belt, which make the precision control of the system difficult. In this paper, the frictions and flexibility of the high-speed tooth belt linear drive are analyzed.","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":"114419803","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.2008.4581322
G. Griva, V. Oleschuk, F. Profumo
This paper presents results of application of a new method of synchronized pulsewidth modulation (PWM) for control of symmetrical six-phase traction drives with two DC sources. The six-phase (dual three-phase) drive system includes in this case a symmetrical induction motor which has two sets of windings spatially shifted by 60 electrical degrees. Analysis of operation of the symmetrical six-phase system with synchronized PWM, providing balanced control of the system, has been performed. Simulation results are given for basic continuous and discontinuous versions of synchronized pulsewidth modulation. The spectra of the phase voltage of the six-phase vehicle drives with algorithms of synchronized PWM do not contain even harmonics and sub-harmonics, which is especially important for the high power/current applications.
{"title":"Hybrid traction drive with symmetrical split-phase motor controlled by synchronized PWM","authors":"G. Griva, V. Oleschuk, F. Profumo","doi":"10.1109/SPEEDHAM.2008.4581322","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581322","url":null,"abstract":"This paper presents results of application of a new method of synchronized pulsewidth modulation (PWM) for control of symmetrical six-phase traction drives with two DC sources. The six-phase (dual three-phase) drive system includes in this case a symmetrical induction motor which has two sets of windings spatially shifted by 60 electrical degrees. Analysis of operation of the symmetrical six-phase system with synchronized PWM, providing balanced control of the system, has been performed. Simulation results are given for basic continuous and discontinuous versions of synchronized pulsewidth modulation. The spectra of the phase voltage of the six-phase vehicle drives with algorithms of synchronized PWM do not contain even harmonics and sub-harmonics, which is especially important for the high power/current applications.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"427 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":"114208281","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.2008.4581221
J. Martin, P. Ladoux, B. Chauchat, J. Casarin, S. Nicolau
Nowadays, in railway traction, in order to reduce the weight and the size of the input transformer, several structures using intermediate medium frequency stages are under consideration. The major problem is to reach a high switching frequency with high voltage devices. In this paper, the authors propose a soft commutated topology based on dual structure association. The switching losses are calculated considering 6.5 kV IGBTs in soft commutation mode.
{"title":"Medium frequency transformer for railway traction: Soft switching converter with high voltage semi-conductors","authors":"J. Martin, P. Ladoux, B. Chauchat, J. Casarin, S. Nicolau","doi":"10.1109/SPEEDHAM.2008.4581221","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581221","url":null,"abstract":"Nowadays, in railway traction, in order to reduce the weight and the size of the input transformer, several structures using intermediate medium frequency stages are under consideration. The major problem is to reach a high switching frequency with high voltage devices. In this paper, the authors propose a soft commutated topology based on dual structure association. The switching losses are calculated considering 6.5 kV IGBTs in soft commutation mode.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"51 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":"114573205","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.2008.4581176
T. Vyncke, Frederik M. L. L. De Belie, René Boel, Jan A. A. Melkebeek, Yonghua Cheng, P. Lataire
Modelling and identification of synchronous machines has attracted much attention during the past decades. Although the standstill frequency response (SSFR) method has become standardized (IEEE Std. 115) it has some disadvantages (e.g. it is a time consuming method). To overcome these, the use of broadband excitation has been proposed in the literature. In this paper the use of broadband excitation for the frequency domain identification of permanent magnet synchronous machines is investigated. The measurement set-up and method are discussed, with special attention to the selection of the applied excitation signals. Three broadband signals suitable for frequency domain parameter identification are discussed and compared in measurements. The obtained frequency domain data can be used in different applications. Examples are given in this paper. Furthermore the extraction of a parametric model from the nonparametric frequency domain data is briefly discussed. The identified parameters can be used to study the influence of saturation or can be applied in the simulation and control of permanent magnet synchronous machines. Measurement results demonstrate that broadband frequency domain identification can be applied to extract the parameters (inductances) of permanent magnet synchronous machines. Moreover, the reproducibility of the method is shown to be good as the variation in the parameters obtained in different measurement sessions is low. Future work on the subject will include a closer investigation of the variations in the obtained parameters, the use of higher order models and the application of more complex estimation algorithms.
{"title":"Identification of PM synchronous machines in the frequency domain by broadband excitation","authors":"T. Vyncke, Frederik M. L. L. De Belie, René Boel, Jan A. A. Melkebeek, Yonghua Cheng, P. Lataire","doi":"10.1109/SPEEDHAM.2008.4581176","DOIUrl":"https://doi.org/10.1109/SPEEDHAM.2008.4581176","url":null,"abstract":"Modelling and identification of synchronous machines has attracted much attention during the past decades. Although the standstill frequency response (SSFR) method has become standardized (IEEE Std. 115) it has some disadvantages (e.g. it is a time consuming method). To overcome these, the use of broadband excitation has been proposed in the literature. In this paper the use of broadband excitation for the frequency domain identification of permanent magnet synchronous machines is investigated. The measurement set-up and method are discussed, with special attention to the selection of the applied excitation signals. Three broadband signals suitable for frequency domain parameter identification are discussed and compared in measurements. The obtained frequency domain data can be used in different applications. Examples are given in this paper. Furthermore the extraction of a parametric model from the nonparametric frequency domain data is briefly discussed. The identified parameters can be used to study the influence of saturation or can be applied in the simulation and control of permanent magnet synchronous machines. Measurement results demonstrate that broadband frequency domain identification can be applied to extract the parameters (inductances) of permanent magnet synchronous machines. Moreover, the reproducibility of the method is shown to be good as the variation in the parameters obtained in different measurement sessions is low. Future work on the subject will include a closer investigation of the variations in the obtained parameters, the use of higher order models and the application of more complex estimation algorithms.","PeriodicalId":345557,"journal":{"name":"2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"193 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":"121868947","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}
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