Pub Date : 2010-06-21DOI: 10.1109/IPEC.2010.5542082
T. Butschen, J. Zimmermann, R. D. De Doncker
The performance of high-power inverters strongly depends on the characteristics of the underlying semiconductor device. The design of such devices is typically a compromise between on-state losses and switching losses. The idea analyzed in this paper is to combine two GCT devices into one single wafer, one switching-optimized GCT structure and one conducting-optimized GCT. By a parallel connection of both devices and a good trigger sequence of the gate signals, a higher performance can be achieved in comparison to a single GCT. More advantages of the Dual GCT are qualified in [1]. In this paper, the Dual GCT concept is discussed in relation to standard GCTs and two single GCTs in parallel mode. Additional FEM simulations of these GCTs demonstrate the advantages of the Dual GCT quantitatively.
{"title":"Development of a Dual GCT","authors":"T. Butschen, J. Zimmermann, R. D. De Doncker","doi":"10.1109/IPEC.2010.5542082","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542082","url":null,"abstract":"The performance of high-power inverters strongly depends on the characteristics of the underlying semiconductor device. The design of such devices is typically a compromise between on-state losses and switching losses. The idea analyzed in this paper is to combine two GCT devices into one single wafer, one switching-optimized GCT structure and one conducting-optimized GCT. By a parallel connection of both devices and a good trigger sequence of the gate signals, a higher performance can be achieved in comparison to a single GCT. More advantages of the Dual GCT are qualified in [1]. In this paper, the Dual GCT concept is discussed in relation to standard GCTs and two single GCTs in parallel mode. Additional FEM simulations of these GCTs demonstrate the advantages of the Dual GCT quantitatively.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115171106","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5542339
Yingjie He, Peng Liu, Jinjun Liu, Zhaoan Wang
Nowadays, hybrid cascade multilevel technology has attracted a increasing concern, especially in moderate-voltage and high-power applications. In this pa-per, a design method about how to design main circuits of active power filters(APF) with hybrid cascade multilevel structure is proposed. Through careful research, the combination of these cascade multilevel H-bridge modules is properly chosen and the number of high-frequency modules is reasonably selected. Simulation results validate the rightness of the proposed method.
{"title":"A design method of hybrid cascade multilevel structure for active power filter application in moderate-voltage grid","authors":"Yingjie He, Peng Liu, Jinjun Liu, Zhaoan Wang","doi":"10.1109/IPEC.2010.5542339","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542339","url":null,"abstract":"Nowadays, hybrid cascade multilevel technology has attracted a increasing concern, especially in moderate-voltage and high-power applications. In this pa-per, a design method about how to design main circuits of active power filters(APF) with hybrid cascade multilevel structure is proposed. Through careful research, the combination of these cascade multilevel H-bridge modules is properly chosen and the number of high-frequency modules is reasonably selected. Simulation results validate the rightness of the proposed method.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115288003","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5542098
T. Yoshida, T. Kamejima, H. Ishikawa, H. Naitoh
This paper propose a new current control system for IPMSM to reduce harmonic currents caused by the overmoduration and a non-sinusoidal magnetic flux distribution on the rotor. The harmonic currents have problems with making a current control system of IPMSMs unstable easily. The proposed current control system has two current controllers. One of them controls fundamental current to satisfy the required torque such as the conventional current controller, and another one controls harmonic current to be zero. In this paper, some experimental results are presented to demonstrate the validity of the proposed control.
{"title":"Higher harmonic currents reduction for interior permanent magnet synchronous motors","authors":"T. Yoshida, T. Kamejima, H. Ishikawa, H. Naitoh","doi":"10.1109/IPEC.2010.5542098","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542098","url":null,"abstract":"This paper propose a new current control system for IPMSM to reduce harmonic currents caused by the overmoduration and a non-sinusoidal magnetic flux distribution on the rotor. The harmonic currents have problems with making a current control system of IPMSMs unstable easily. The proposed current control system has two current controllers. One of them controls fundamental current to satisfy the required torque such as the conventional current controller, and another one controls harmonic current to be zero. In this paper, some experimental results are presented to demonstrate the validity of the proposed control.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115735610","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5543127
Y. Terao, M. Sekino, H. Ohsaki
Superconductors have advantages of zero resistance, generation of high magnetic fields, large current density. Practical high-temperature superconductors are now available for fabricating coils and bulk magnets. These materials have a variety of potential applications in power industry. In this paper, we propose conceptual design of new linear synchronous motors using high-temperature superconducting coils and bulks, and perform three-dimensional finite-element analyses of electromagnetic characteristics. A DC field magnet is designed using superconducting coils and bulks taking into account the characteristics of high-temperature superconducting materials. The thrust characteristics of the linear motors were analyzed.
{"title":"Design study of linear synchronous motors using superconducting coils and bulks","authors":"Y. Terao, M. Sekino, H. Ohsaki","doi":"10.1109/IPEC.2010.5543127","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5543127","url":null,"abstract":"Superconductors have advantages of zero resistance, generation of high magnetic fields, large current density. Practical high-temperature superconductors are now available for fabricating coils and bulk magnets. These materials have a variety of potential applications in power industry. In this paper, we propose conceptual design of new linear synchronous motors using high-temperature superconducting coils and bulks, and perform three-dimensional finite-element analyses of electromagnetic characteristics. A DC field magnet is designed using superconducting coils and bulks taking into account the characteristics of high-temperature superconducting materials. The thrust characteristics of the linear motors were analyzed.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125201107","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5542007
T. Ahmed, K. Nishida, M. Nakaoka
In this paper, the advanced electric technologies for grid power integration of different offshore wave energy conversion devices are presented. The electrical connection configurations for integrating the electric power of the multi wave energy conversion devices such as the Oscillating Water Column, Pelamis, the Wave Point Absorbers and the Wave Dragon are developed by employing the most efficient low cost grid interface electrical technologies based on the advanced power electronics. The bi-directional power converter is employed for wide-range variable speed operation of wave energy conversion device to reduce the power output fluctuations and improve the whole power generation efficiency.
{"title":"The potential for grid power integration of offshore ocean wave energy in the UK","authors":"T. Ahmed, K. Nishida, M. Nakaoka","doi":"10.1109/IPEC.2010.5542007","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542007","url":null,"abstract":"In this paper, the advanced electric technologies for grid power integration of different offshore wave energy conversion devices are presented. The electrical connection configurations for integrating the electric power of the multi wave energy conversion devices such as the Oscillating Water Column, Pelamis, the Wave Point Absorbers and the Wave Dragon are developed by employing the most efficient low cost grid interface electrical technologies based on the advanced power electronics. The bi-directional power converter is employed for wide-range variable speed operation of wave energy conversion device to reduce the power output fluctuations and improve the whole power generation efficiency.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120944153","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5542197
Y. Hsieh, Ming-Ren Chen, H. Yen
This paper proposes a novel soft-switching two-phase boost converter to behave as a power factor correction pre-regulator. This regulator is able to turn on both the active power switches at zero voltage to reduce their switching losses and evidently raise the conversion efficiency. The two boost converters are identical, and their operation analysis and design for the regulator become quite simple. Frequency control for input current shaping is implemented by a DSP microcontroller. A laboratorial test circuit is built and the waveforms show satisfactory agreement to the theoretical analysis. The experimental results show that this converter module performs very well with the output efficiency as high as 93.5% and power factor of 0.993.
{"title":"A two-phase zero-voltage-transition boost converter for power factor correction","authors":"Y. Hsieh, Ming-Ren Chen, H. Yen","doi":"10.1109/IPEC.2010.5542197","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542197","url":null,"abstract":"This paper proposes a novel soft-switching two-phase boost converter to behave as a power factor correction pre-regulator. This regulator is able to turn on both the active power switches at zero voltage to reduce their switching losses and evidently raise the conversion efficiency. The two boost converters are identical, and their operation analysis and design for the regulator become quite simple. Frequency control for input current shaping is implemented by a DSP microcontroller. A laboratorial test circuit is built and the waveforms show satisfactory agreement to the theoretical analysis. The experimental results show that this converter module performs very well with the output efficiency as high as 93.5% and power factor of 0.993.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121240654","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5542221
Yong-Nong Chang, Ching C. Lin, Shun Y. Chan, Shian-Nan Lin, Jianguang Lin
In this research, two 13 W, 117 cm long CCFL are installed into a conventional T8 transparent tube with 119.8 cm in length. For retaining the original 38 W lighting capability, a well-performed reflection plate was installed at the center to project the emitting light of CCFL in the same direction to promote the lighting efficiency. The space between reflection plate and light tube is used to accommodate the CCFL driver circuit, thus inspiring the incentives of users to replace the conventional fluorescent lamp with CCFL. By utilizing burst mode dimming technique to regulate light output, the CCFL output voltage was intermittently outputted and the required dimming functions can be achieved. This research fully utilized the inductance of conventional magnetic ballast to accomplish power factor corrector by including appropriate capacitor. Accordingly, the input characteristics can be improved and high power factor performance can be achieved as well.
{"title":"Development of lighting source with CCFL in T8-tube","authors":"Yong-Nong Chang, Ching C. Lin, Shun Y. Chan, Shian-Nan Lin, Jianguang Lin","doi":"10.1109/IPEC.2010.5542221","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542221","url":null,"abstract":"In this research, two 13 W, 117 cm long CCFL are installed into a conventional T8 transparent tube with 119.8 cm in length. For retaining the original 38 W lighting capability, a well-performed reflection plate was installed at the center to project the emitting light of CCFL in the same direction to promote the lighting efficiency. The space between reflection plate and light tube is used to accommodate the CCFL driver circuit, thus inspiring the incentives of users to replace the conventional fluorescent lamp with CCFL. By utilizing burst mode dimming technique to regulate light output, the CCFL output voltage was intermittently outputted and the required dimming functions can be achieved. This research fully utilized the inductance of conventional magnetic ballast to accomplish power factor corrector by including appropriate capacitor. Accordingly, the input characteristics can be improved and high power factor performance can be achieved as well.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125786740","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5543590
Sung-Hsin Hsiao, Yuang-Shung Lee, P. Kong
This paper proposes a zero-current-switching (ZCS) quasi-resonant (QR) bidirectional converter with secondary output power amplifier. For implantable biomedical devices applications, the proposed device could be regarded as a power regulator with power amplifier. The bidirectional converter could provide voltage conversion ratio double-mode/half-mode and also be employed as a secondary output power amplifier. The forward and reverse power conversion modes and power amplifier operating principles are described. Simulations and experiments are carried out to verify the concept and performance for the bidirectional power conversions and secondary output power amplifier. This device can be applied to wireless energy transfer for a battery management system (BMS) in an implantable electronics system.
{"title":"ZCS switched-capacitor bidirectional converters with secondary output power amplifier for biomedical applications","authors":"Sung-Hsin Hsiao, Yuang-Shung Lee, P. Kong","doi":"10.1109/IPEC.2010.5543590","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5543590","url":null,"abstract":"This paper proposes a zero-current-switching (ZCS) quasi-resonant (QR) bidirectional converter with secondary output power amplifier. For implantable biomedical devices applications, the proposed device could be regarded as a power regulator with power amplifier. The bidirectional converter could provide voltage conversion ratio double-mode/half-mode and also be employed as a secondary output power amplifier. The forward and reverse power conversion modes and power amplifier operating principles are described. Simulations and experiments are carried out to verify the concept and performance for the bidirectional power conversions and secondary output power amplifier. This device can be applied to wireless energy transfer for a battery management system (BMS) in an implantable electronics system.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125896422","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5542335
Ichiro Masatsuki
JR East has been developing "Feeder line and storage battery hybrid train system" to decrease negative environmental impact by diesel trains that have been operated in non-electrified lines. The development of the battery charging system on ground that supplies electric power to the hybrid train has been tested since last year, and we decided the outline of the facilities. Construction of the battery charging facilities is scheduled this year and the charging test is also scheduled next year.
{"title":"Development of the battery charging system for the new hybrid train that combines feeder line and the storage battery","authors":"Ichiro Masatsuki","doi":"10.1109/IPEC.2010.5542335","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5542335","url":null,"abstract":"JR East has been developing \"Feeder line and storage battery hybrid train system\" to decrease negative environmental impact by diesel trains that have been operated in non-electrified lines. The development of the battery charging system on ground that supplies electric power to the hybrid train has been tested since last year, and we decided the outline of the facilities. Construction of the battery charging facilities is scheduled this year and the charging test is also scheduled next year.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103286","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 : 2010-06-21DOI: 10.1109/IPEC.2010.5544560
T. Ishikawa, R. Toyota, M. Matsunami, N. Kurita, T. Matsuura
This paper proposes a new diagnosis method for the eccentric load coupled to a brushless DC motor, which utilizes the amplitude of two-phase current. The experiment verifies that the Fourier analysis and the Wavelet analysis of the amplitude of two-phase current are effective. Especially, the Fourier analysis of the amplitude of two-phase current is proportional to the load torque with the coefficient of the inverse of torque constant at a low speed. The proposed method is very useful to estimate the amount of eccentric load using the stator current.
{"title":"Current-based detection of eccentric load coupled to brushless DC motor","authors":"T. Ishikawa, R. Toyota, M. Matsunami, N. Kurita, T. Matsuura","doi":"10.1109/IPEC.2010.5544560","DOIUrl":"https://doi.org/10.1109/IPEC.2010.5544560","url":null,"abstract":"This paper proposes a new diagnosis method for the eccentric load coupled to a brushless DC motor, which utilizes the amplitude of two-phase current. The experiment verifies that the Fourier analysis and the Wavelet analysis of the amplitude of two-phase current are effective. Especially, the Fourier analysis of the amplitude of two-phase current is proportional to the load torque with the coefficient of the inverse of torque constant at a low speed. The proposed method is very useful to estimate the amount of eccentric load using the stator current.","PeriodicalId":353540,"journal":{"name":"The 2010 International Power Electronics Conference - ECCE ASIA -","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125331316","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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