Pub Date : 2014-11-01DOI: 10.1109/PEAC.2014.7037835
Haining Wang, O. Ikawa, S. Miyashita, T. Nishimura, S. Igarashi
The 1700V/400A hybrid module is consisted of Si-IGBTs and SiC-SBDs mounted in a general 2in1 package. Because the reverse recovery current of SiC-SBD is very small to be an unipolar device, reverse recovery and turn-on losses at 400A on the hybrid module are 83% and 38% lower than that of the conventional all Si module, respectively. Therefore there is a further advantage of hybrid module at high frequency operation. Radiation noise on hybrid module becomes higher with increasing collector current, but the peak value of the noise from hybrid module is almost same as the all Si module if the collector current is less than 300A. In AC690V PWM inverter, the total power dissipation of hybrid module is 8% lower at 1 kHz and 29% lower at 10 kHz compare to the all Si module. Therefore the 1700V hybrid module is useful as a power module for an AC690V high efficiency inverter system such as wind power generation system and high voltage solar power generation system. This paper reports about the static and dynamic characteristics and the radiation noise measurement results on the 400A/1700V hybrid module.
{"title":"1700V Si-IGBT and SiC-SBD hybrid module for AC690V inverter system","authors":"Haining Wang, O. Ikawa, S. Miyashita, T. Nishimura, S. Igarashi","doi":"10.1109/PEAC.2014.7037835","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7037835","url":null,"abstract":"The 1700V/400A hybrid module is consisted of Si-IGBTs and SiC-SBDs mounted in a general 2in1 package. Because the reverse recovery current of SiC-SBD is very small to be an unipolar device, reverse recovery and turn-on losses at 400A on the hybrid module are 83% and 38% lower than that of the conventional all Si module, respectively. Therefore there is a further advantage of hybrid module at high frequency operation. Radiation noise on hybrid module becomes higher with increasing collector current, but the peak value of the noise from hybrid module is almost same as the all Si module if the collector current is less than 300A. In AC690V PWM inverter, the total power dissipation of hybrid module is 8% lower at 1 kHz and 29% lower at 10 kHz compare to the all Si module. Therefore the 1700V hybrid module is useful as a power module for an AC690V high efficiency inverter system such as wind power generation system and high voltage solar power generation system. This paper reports about the static and dynamic characteristics and the radiation noise measurement results on the 400A/1700V hybrid module.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115409607","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 : 2014-11-01DOI: 10.1109/PEAC.2014.7038067
K. Tabira, S. Watanabe, T. Shimatou, T. Watashima, S. Takenoiri
Characteristics of fast recovery diode (FRED) type super junction MOSFET (SJ-MOS) are reported. The reverse recovery ruggedness (-di/dt ruggedness) of the SJ-MOS FRED is dramatically improved compared to that of non-FRED type, which is almost 16 times better.
{"title":"Advantage of super junction MOSFET for power supply application","authors":"K. Tabira, S. Watanabe, T. Shimatou, T. Watashima, S. Takenoiri","doi":"10.1109/PEAC.2014.7038067","DOIUrl":"https://doi.org/10.1109/PEAC.2014.7038067","url":null,"abstract":"Characteristics of fast recovery diode (FRED) type super junction MOSFET (SJ-MOS) are reported. The reverse recovery ruggedness (-di/dt ruggedness) of the SJ-MOS FRED is dramatically improved compared to that of non-FRED type, which is almost 16 times better.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124568426","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6869690
David Leuenberger, J. Biela
The calculation of Eddy current losses in foil windings exposed to a 2-D fringing field is a complex task, due to the current displacement along the height of the foil. For model based optimization of magnetic components, the loss calculation with a 2-D FEM simulation is not an option, due to the high computational effort. The existing alternative calculation methods, which allow for loss calculation with low computational effort, rely on approximations applicable only for a certain geometrical arrangement of the windings and the air gap. Therefore, a new semi-numerical method is developed to overcome these limitations. The method is based on the mirroring method and is applicable to arbitrary air gaps and winding arrangements. The accuracy of the new method is verified by measurements and the deviation of the model to the measured losses is below 15%.
{"title":"Semi-numerical method for loss-calculation in foil-windings exposed to an air-gap field","authors":"David Leuenberger, J. Biela","doi":"10.1109/IPEC.2014.6869690","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6869690","url":null,"abstract":"The calculation of Eddy current losses in foil windings exposed to a 2-D fringing field is a complex task, due to the current displacement along the height of the foil. For model based optimization of magnetic components, the loss calculation with a 2-D FEM simulation is not an option, due to the high computational effort. The existing alternative calculation methods, which allow for loss calculation with low computational effort, rely on approximations applicable only for a certain geometrical arrangement of the windings and the air gap. Therefore, a new semi-numerical method is developed to overcome these limitations. The method is based on the mirroring method and is applicable to arbitrary air gaps and winding arrangements. The accuracy of the new method is verified by measurements and the deviation of the model to the measured losses is below 15%.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131936159","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6869907
J. Itoh, K. Noguchi, K. Orikawa
This paper discusses an electric assisted bicycle which uses electric double layer capacitors (EDLCs) as a power source. EDLCs are charged through a rapid charger by using wireless power transmission. In this paper, first, the energy capacity of EDLCs is designed. Next, the antenna for the wireless power transmission and the charger are investigated. Third, this paper compares the volume and the power loss of the three kinds of DC-DC converters which are step-down type, boost-type and buck-boost type for the charging and discharging of EDLCs. As a result, boost-type is the most compact in the power capacity of the electric assisted bicycle. Finally, the proposed system is experimentally verified as a prototype. As a result, the proposed system can shorten to 1/4 the charging time of the conventional system.
{"title":"System design of electric assisted bicycle using EDLCs and wireless charger","authors":"J. Itoh, K. Noguchi, K. Orikawa","doi":"10.1109/IPEC.2014.6869907","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6869907","url":null,"abstract":"This paper discusses an electric assisted bicycle which uses electric double layer capacitors (EDLCs) as a power source. EDLCs are charged through a rapid charger by using wireless power transmission. In this paper, first, the energy capacity of EDLCs is designed. Next, the antenna for the wireless power transmission and the charger are investigated. Third, this paper compares the volume and the power loss of the three kinds of DC-DC converters which are step-down type, boost-type and buck-boost type for the charging and discharging of EDLCs. As a result, boost-type is the most compact in the power capacity of the electric assisted bicycle. Finally, the proposed system is experimentally verified as a prototype. As a result, the proposed system can shorten to 1/4 the charging time of the conventional system.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127548042","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6870152
K. Itako
In a standalone photovoltaic (PV) power generation system, the author previously proposed a new type of MPPT (Maximum Power Point Tracking) control method in which the I-V characteristics are scanned with detection interval control at specified intervals and the maximum power point is monitored. The author obtained satisfactory results using this new MPPT control method. This paper investigates applying the new MPPT control method to power conditioning system (PCS) in an industrial grid-connected type PV power generation system. The experimental results clearly demonstrate that the developed PCS offers outstanding effectiveness in partially shaded environments.
{"title":"PCS with scanning-type MPPT control for industrial grid-connected PV power generation system","authors":"K. Itako","doi":"10.1109/IPEC.2014.6870152","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6870152","url":null,"abstract":"In a standalone photovoltaic (PV) power generation system, the author previously proposed a new type of MPPT (Maximum Power Point Tracking) control method in which the I-V characteristics are scanned with detection interval control at specified intervals and the maximum power point is monitored. The author obtained satisfactory results using this new MPPT control method. This paper investigates applying the new MPPT control method to power conditioning system (PCS) in an industrial grid-connected type PV power generation system. The experimental results clearly demonstrate that the developed PCS offers outstanding effectiveness in partially shaded environments.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123321201","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6870028
P. Achara, T. Ise
This paper describes the characteristics of low frequency ac transmission system using cycloconverters with three configurations. The purpose is to evaluate and choose the most suitable operating frequency and number of phases for this system. The new control scheme is also provided for all operating transmission system. Cable and filter selection are also included in this paper.
{"title":"Operating phase and frequency selection of low frequency AC transmission system using cycloconverters","authors":"P. Achara, T. Ise","doi":"10.1109/IPEC.2014.6870028","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6870028","url":null,"abstract":"This paper describes the characteristics of low frequency ac transmission system using cycloconverters with three configurations. The purpose is to evaluate and choose the most suitable operating frequency and number of phases for this system. The new control scheme is also provided for all operating transmission system. Cable and filter selection are also included in this paper.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"264 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121819623","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6869986
S. Ohashi, M. Yoshida, T. Yokoyama
Variable carrier frequency control of PWM inverter based on deadbeat control using SoC-FPGA based hardware controller was proposed. The inductor current was controlled using digital hysteresis method and the output current was controlled using deadbeat control with disturbancecompensator. As the result, the control accuracy and the efficiency of the inverter can be adjustable with superior tracking accuracy to the reference current. Verifications were carried out through simulations and experiments.
{"title":"Variable carrier deadbeat control with digital hysteresis method using SoC-FPGA for utility interactive inverter","authors":"S. Ohashi, M. Yoshida, T. Yokoyama","doi":"10.1109/IPEC.2014.6869986","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6869986","url":null,"abstract":"Variable carrier frequency control of PWM inverter based on deadbeat control using SoC-FPGA based hardware controller was proposed. The inductor current was controlled using digital hysteresis method and the output current was controlled using deadbeat control with disturbancecompensator. As the result, the control accuracy and the efficiency of the inverter can be adjustable with superior tracking accuracy to the reference current. Verifications were carried out through simulations and experiments.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257760","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6870046
W. Kitagawa, T. Takeshita
In this paper, it was proposed to the optimization of skew of SPMSM with 3-dimensional finite element method (3D-FEM). The optimization technique was used multi-step parallel Genetic Algorithm (GA) and the allocation of material assignment method. As a result, in useful computation time, It was able to obtain an optimal skew special shape. And, it was able to reduce the cogging torque of more than 97%.
{"title":"Topology optimization for skew of SPMSM by using multi-step parallel GA","authors":"W. Kitagawa, T. Takeshita","doi":"10.1109/IPEC.2014.6870046","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6870046","url":null,"abstract":"In this paper, it was proposed to the optimization of skew of SPMSM with 3-dimensional finite element method (3D-FEM). The optimization technique was used multi-step parallel Genetic Algorithm (GA) and the allocation of material assignment method. As a result, in useful computation time, It was able to obtain an optimal skew special shape. And, it was able to reduce the cogging torque of more than 97%.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128804830","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6869794
A. Katsuki, K. Shibahara, Tomohiko Abe, Tomohiko Ikeda, Tatsuya Nakamura, Tatsuya Mizuki, Shigetaka Maeyama
Metallic communication lines in wire communication systems are usually used as power lines. Ac communication signal and dc supply power are separated at input part of a powered terminal. Conventional well-known separators utilize the combination of inductors and capacitors. When the signal frequency is low, volume of these components increases. A conventional electronic choke circuit using transistors has the disadvantage of high power dissipation. Furthermore, the direction of the dc current is limited to unidirectional. Our original communication system consists of powering terminals and powered terminals. The direction of the dc current in the powering terminals is opposite to that in the powered terminals. Therefore, it is preferable to have a bidirectional electronic choke. With respect to our low-loss electronic choke with small inductors and an amplifier, wide band frequency characteristics can be obtained. In this paper, a new electronic choke with no need of gain adjustment in amplifier is proposed.
{"title":"A reliable electronic choke with no need of gain adjustment for wire communication system","authors":"A. Katsuki, K. Shibahara, Tomohiko Abe, Tomohiko Ikeda, Tatsuya Nakamura, Tatsuya Mizuki, Shigetaka Maeyama","doi":"10.1109/IPEC.2014.6869794","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6869794","url":null,"abstract":"Metallic communication lines in wire communication systems are usually used as power lines. Ac communication signal and dc supply power are separated at input part of a powered terminal. Conventional well-known separators utilize the combination of inductors and capacitors. When the signal frequency is low, volume of these components increases. A conventional electronic choke circuit using transistors has the disadvantage of high power dissipation. Furthermore, the direction of the dc current is limited to unidirectional. Our original communication system consists of powering terminals and powered terminals. The direction of the dc current in the powering terminals is opposite to that in the powered terminals. Therefore, it is preferable to have a bidirectional electronic choke. With respect to our low-loss electronic choke with small inductors and an amplifier, wide band frequency characteristics can be obtained. In this paper, a new electronic choke with no need of gain adjustment in amplifier is proposed.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127131425","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 : 2014-08-07DOI: 10.1109/IPEC.2014.6869968
H. Hijikata, K. Akatsu, Y. Miyama, H. Arita, A. Daikoku
An interior permanent magnet synchronous motor experiences large harmonic iron loss in the stator teeth caused by the harmonic magnetomotive forces. In particular, the eddy current loss remarkably increases at high rotational speeds under the flux weakening control. In this paper, a novel suppression control method for the stator iron loss is proposed by utilizing the individual winding current control. Although the proposed method requires multi-phase winding and multiple full-bridge inverters, the individual winding current control can observe and regulate the flux density in each tooth. This paper reveals that the proposed control method can achieve the extensive reduction of the total iron loss.
{"title":"Suppression control method for iron loss of MATRIX motor under flux weakening utilizing individual winding current control","authors":"H. Hijikata, K. Akatsu, Y. Miyama, H. Arita, A. Daikoku","doi":"10.1109/IPEC.2014.6869968","DOIUrl":"https://doi.org/10.1109/IPEC.2014.6869968","url":null,"abstract":"An interior permanent magnet synchronous motor experiences large harmonic iron loss in the stator teeth caused by the harmonic magnetomotive forces. In particular, the eddy current loss remarkably increases at high rotational speeds under the flux weakening control. In this paper, a novel suppression control method for the stator iron loss is proposed by utilizing the individual winding current control. Although the proposed method requires multi-phase winding and multiple full-bridge inverters, the individual winding current control can observe and regulate the flux density in each tooth. This paper reveals that the proposed control method can achieve the extensive reduction of the total iron loss.","PeriodicalId":393430,"journal":{"name":"2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116017320","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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