Pub Date : 2003-11-17DOI: 10.1109/PEDS.2003.1282887
I. Chindurza, D. Dorrell, C. Cossar
This paper describes a study into the forces that occur in a switched reluctance motor with faults. These forces can be used for non-invasive diagnosis of inter-turn faults and rotor eccentricity in switched-reluctance machines by monitoring of the vibrations on the machine casing. The technique uses a transient finite element analysis and produces characteristics for the forces on the teeth and net force on the rotor in terms of the current, winding and rotor positioning. The forces can be detected on the actual machine using accelerometers. The faults that produce an unbalanced radial force on the rotor are very noticeable if it has vibrating components and these are very apparent when using accelerometers attached to the stator casing. They also cause secondary problems such are worn bearings. The shorted-turns current is studied and it is illustrated that this current is high, which leads to burn-out.
{"title":"Non-invasive fault diagnosis for switched-reluctance machines with incorrect winding turns, inter-turn winding faults and eccentric rotors","authors":"I. Chindurza, D. Dorrell, C. Cossar","doi":"10.1109/PEDS.2003.1282887","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1282887","url":null,"abstract":"This paper describes a study into the forces that occur in a switched reluctance motor with faults. These forces can be used for non-invasive diagnosis of inter-turn faults and rotor eccentricity in switched-reluctance machines by monitoring of the vibrations on the machine casing. The technique uses a transient finite element analysis and produces characteristics for the forces on the teeth and net force on the rotor in terms of the current, winding and rotor positioning. The forces can be detected on the actual machine using accelerometers. The faults that produce an unbalanced radial force on the rotor are very noticeable if it has vibrating components and these are very apparent when using accelerometers attached to the stator casing. They also cause secondary problems such are worn bearings. The shorted-turns current is studied and it is illustrated that this current is high, which leads to burn-out.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115391194","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1283170
Sheng-Yuan Ou, Shang-Chin Yen, Yu-Kang Lo
The input current harmonic analysis using discrete waveform modeling for discontinuous conduction mode boost rectifiers is presented in this paper. The equations describing the input current waveforms and the current harmonics can be expressed as functions of the circuit parameters, including the duty ratio, switching frequency, input inductance and the load resistance. The procedures for estimating the input filter capacitance are also established. Experimental results show good conformation with the theoretical data.
{"title":"Input current harmonic analysis and filter capacitor design for discontinuous conduction mode boost rectifiers","authors":"Sheng-Yuan Ou, Shang-Chin Yen, Yu-Kang Lo","doi":"10.1109/PEDS.2003.1283170","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1283170","url":null,"abstract":"The input current harmonic analysis using discrete waveform modeling for discontinuous conduction mode boost rectifiers is presented in this paper. The equations describing the input current waveforms and the current harmonics can be expressed as functions of the circuit parameters, including the duty ratio, switching frequency, input inductance and the load resistance. The procedures for estimating the input filter capacitance are also established. Experimental results show good conformation with the theoretical data.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124486950","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1283200
A. Moki, Shoji
A rectifier system having a DC voltage step-up and step-down characteristic is treated. The system consists of a PWM voltage source rectifier and a DC-to-DC buck converter connected in cascade. Theoretically, the system can produce a DC output voltage ranging from zero volts to infinity and a sinusoidal AC input current, and the displacement power factor can be kept at unity. The system can perform bidirectional power flow. Control strategy based on a sinusoidal internal model is proposed. Two PS regulators and two PI regulators for each control object is used. Experimental results confirm the validity of the proposed control system.
{"title":"Sinusoidal internal model based control of a three-phase voltage source rectifier with buck-boost operation","authors":"A. Moki, Shoji","doi":"10.1109/PEDS.2003.1283200","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1283200","url":null,"abstract":"A rectifier system having a DC voltage step-up and step-down characteristic is treated. The system consists of a PWM voltage source rectifier and a DC-to-DC buck converter connected in cascade. Theoretically, the system can produce a DC output voltage ranging from zero volts to infinity and a sinusoidal AC input current, and the displacement power factor can be kept at unity. The system can perform bidirectional power flow. Control strategy based on a sinusoidal internal model is proposed. Two PS regulators and two PI regulators for each control object is used. Experimental results confirm the validity of the proposed control system.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124849729","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1283235
C. Zhang, K. Tseng, J. Zhou
A motor proposed in this paper has a disk-type rotor sandwiched between two disk-type stators and has the capability of both rotation and levitation control. The displacement and rotation along radial directions and axial direction are restricted and controlled by passive bearings and active magnetic bearings respectively. It does not rely on mechanical bearing, so does not require lubrication and can be expected to have longer maintenance-free lifespan. The collective system design, mathematical model, control scheme and simulation results are presented in this paper.
{"title":"Modeling and simulation of a disk-type permanent magnet bearingless motor","authors":"C. Zhang, K. Tseng, J. Zhou","doi":"10.1109/PEDS.2003.1283235","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1283235","url":null,"abstract":"A motor proposed in this paper has a disk-type rotor sandwiched between two disk-type stators and has the capability of both rotation and levitation control. The displacement and rotation along radial directions and axial direction are restricted and controlled by passive bearings and active magnetic bearings respectively. It does not rely on mechanical bearing, so does not require lubrication and can be expected to have longer maintenance-free lifespan. The collective system design, mathematical model, control scheme and simulation results are presented in this paper.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124950630","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1283114
N. Kularatna
As at today more than 75% of the generated power is processed by power electronic subsystems within products and systems. Traditional power electronic courses for the undergraduate courses are mostly based on the mix of traditional topics such as power semiconductors, DC-DC converters, electromagnetics, motor drives, and other related topics. However with the developments within the 1980-2000 related to integrated circuits, portable products, product intelligence based on exponential growth of software, and the dropping of DC power supply voltages and related scenarios have created many voids in the power electronic curricular to cope up with the technology developments. The paper highlights the recent developments in the semiconductors, associated demands from the power electronic interface and topics, which are less traditional, but valuable in the new IT dominated world and the portable products, battery powered systems, as well as demands from the green electronic designs. Paper will discuss the possibilities of smooth transition from undergraduate courses to continuous professional development (CPD) type training for closely tracking and contributing to the technology.
{"title":"Upgrading the power electronic curriculum in undergraduate courses and combining continuing professional development training","authors":"N. Kularatna","doi":"10.1109/PEDS.2003.1283114","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1283114","url":null,"abstract":"As at today more than 75% of the generated power is processed by power electronic subsystems within products and systems. Traditional power electronic courses for the undergraduate courses are mostly based on the mix of traditional topics such as power semiconductors, DC-DC converters, electromagnetics, motor drives, and other related topics. However with the developments within the 1980-2000 related to integrated circuits, portable products, product intelligence based on exponential growth of software, and the dropping of DC power supply voltages and related scenarios have created many voids in the power electronic curricular to cope up with the technology developments. The paper highlights the recent developments in the semiconductors, associated demands from the power electronic interface and topics, which are less traditional, but valuable in the new IT dominated world and the portable products, battery powered systems, as well as demands from the green electronic designs. Paper will discuss the possibilities of smooth transition from undergraduate courses to continuous professional development (CPD) type training for closely tracking and contributing to the technology.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126174759","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1282772
K. Ishikawa, Y. Kimura, S. Kikuchi
This paper describes the relationship between pole pitch length of the stator core and characteristic values of the linear parametric motor with open magnetic circuit. We made five motors of the different pole pitch length that there were the stator core width W = 34 mm constant. This time, static thrust and characteristic values of each motor were discussed. In addition, using the motor of pole pitch length 50 mm, the automatic door model was produced experimentally, and the velocity characteristic was examined.
{"title":"Consideration on the improvement of performance characteristics and application of the linear parametric motor","authors":"K. Ishikawa, Y. Kimura, S. Kikuchi","doi":"10.1109/PEDS.2003.1282772","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1282772","url":null,"abstract":"This paper describes the relationship between pole pitch length of the stator core and characteristic values of the linear parametric motor with open magnetic circuit. We made five motors of the different pole pitch length that there were the stator core width W = 34 mm constant. This time, static thrust and characteristic values of each motor were discussed. In addition, using the motor of pole pitch length 50 mm, the automatic door model was produced experimentally, and the velocity characteristic was examined.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126371900","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1282886
V. Kamaraj, C. Aravind Vaithilingam
Modeling and simulation have become very important tools for the analysis and design of complex systems. There are various methods to combine a field analysis with a system simulation. The difference between these methods is a trade-off between calculation speed, flexibility and accuracy. In this paper we have chosen the reduced order modeling via the co-energy method [Udo Kllat Jens, 2002]. In this approach the field analysis is done during the system simulation. At each time-step during the simulation a field analysis is carried out. The results from the field analysis for this time-step are used as inputs for the system simulation. This paper deals with the problem of modeling and simulation of switched reluctance motor, given its design parameters, to evaluate the effectiveness using MAGNET6.0. Three type of models where simulated and results were analyzed. Based on these results some modifications are suggested in the manufacturing process of the specified motor to increase its efficiency and reduce the cost of production. Some modifications in the design to eliminate the disadvantages like acoustic nose, torque ripple can be incorporated in the design for better performance. The model is to be verified physically to ensure that it meets all the functional design specifications.
{"title":"Modelling and simulation of switched reluctance machine (SRM) using MAGNET6.0","authors":"V. Kamaraj, C. Aravind Vaithilingam","doi":"10.1109/PEDS.2003.1282886","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1282886","url":null,"abstract":"Modeling and simulation have become very important tools for the analysis and design of complex systems. There are various methods to combine a field analysis with a system simulation. The difference between these methods is a trade-off between calculation speed, flexibility and accuracy. In this paper we have chosen the reduced order modeling via the co-energy method [Udo Kllat Jens, 2002]. In this approach the field analysis is done during the system simulation. At each time-step during the simulation a field analysis is carried out. The results from the field analysis for this time-step are used as inputs for the system simulation. This paper deals with the problem of modeling and simulation of switched reluctance motor, given its design parameters, to evaluate the effectiveness using MAGNET6.0. Three type of models where simulated and results were analyzed. Based on these results some modifications are suggested in the manufacturing process of the specified motor to increase its efficiency and reduce the cost of production. Some modifications in the design to eliminate the disadvantages like acoustic nose, torque ripple can be incorporated in the design for better performance. The model is to be verified physically to ensure that it meets all the functional design specifications.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129846827","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1282918
Kong Xin, A. Khambadkone
AbstTuctFuel cells are considered as one of the most prominent sources of green energy in future. Many researches have focused on fuel cell modelling and the electrochemical dynamics of the fuel cell, but few focused on the dynamics of the fuel cell with power electronics circuit. This paper aims to analyze the characterization of the dynamic fuel cell model in conjunction with power electronic circuit. The analysis presented will help us to find the most efficient boost converter for the fuel cell.
{"title":"Dynamic modelling of fuel cell with power electronic current and performance analysis","authors":"Kong Xin, A. Khambadkone","doi":"10.1109/PEDS.2003.1282918","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1282918","url":null,"abstract":"AbstTuctFuel cells are considered as one of the most prominent sources of green energy in future. Many researches have focused on fuel cell modelling and the electrochemical dynamics of the fuel cell, but few focused on the dynamics of the fuel cell with power electronics circuit. This paper aims to analyze the characterization of the dynamic fuel cell model in conjunction with power electronic circuit. The analysis presented will help us to find the most efficient boost converter for the fuel cell.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129518405","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1283227
P. Phakarmach, C. Akkaraphong
A Sliding mode Model Following Control or SMFC strategy for an induction motor driver is presented. A procedure is proposed for choosing the control function so that it guarantee the existence of a sliding mode. Moreover, the chattering in the control signal is suppressed by replacing the sign function in the control function with a continuous function. The SMFC approach has been implemented on a microcomputer and applied to a position control of an induction motor. Experimental results illustrate that SMFC gives a significant improvement on the tracking performances and robust to plant parameter variations and disturbances.
{"title":"The design and implementation of an induction motor driver using a sliding mode model following control with sinusoidal command input","authors":"P. Phakarmach, C. Akkaraphong","doi":"10.1109/PEDS.2003.1283227","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1283227","url":null,"abstract":"A Sliding mode Model Following Control or SMFC strategy for an induction motor driver is presented. A procedure is proposed for choosing the control function so that it guarantee the existence of a sliding mode. Moreover, the chattering in the control signal is suppressed by replacing the sign function in the control function with a continuous function. The SMFC approach has been implemented on a microcomputer and applied to a position control of an induction motor. Experimental results illustrate that SMFC gives a significant improvement on the tracking performances and robust to plant parameter variations and disturbances.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128228575","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 : 2003-11-17DOI: 10.1109/PEDS.2003.1282959
Zou Jibin, Hu Jianhui, Liang Weiyan
Cogging torque makes great attribute to the torque ripple and noise of permanent magnet motor. The causes to produce cogging torque are discussed in this paper. The cogging torques of two PM motors is computed by finite element analysis. Computed results show the effectiveness of pole-slot-pairing method to reduce ideal cogging torque. While in practical motor, there may be some defects caused by manufacture, such as magnet performance discrete, and the evaluation of stator inner surface. These defects can cause non-ideal cogging torque. Such cogging torque is quantificationally analyzed by finite element analysis.
{"title":"Quantitatively evaluation on the cogging torque of permanent magnet motor caused by stator and rotor defect","authors":"Zou Jibin, Hu Jianhui, Liang Weiyan","doi":"10.1109/PEDS.2003.1282959","DOIUrl":"https://doi.org/10.1109/PEDS.2003.1282959","url":null,"abstract":"Cogging torque makes great attribute to the torque ripple and noise of permanent magnet motor. The causes to produce cogging torque are discussed in this paper. The cogging torques of two PM motors is computed by finite element analysis. Computed results show the effectiveness of pole-slot-pairing method to reduce ideal cogging torque. While in practical motor, there may be some defects caused by manufacture, such as magnet performance discrete, and the evaluation of stator inner surface. These defects can cause non-ideal cogging torque. Such cogging torque is quantificationally analyzed by finite element analysis.","PeriodicalId":106054,"journal":{"name":"The Fifth International Conference on Power Electronics and Drive Systems, 2003. PEDS 2003.","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124959720","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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