Pub Date : 2018-09-01DOI: 10.1109/ECCE.2018.8558455
Xi Chen, A. Pise, I. Batarseh, J. Elmes
This paper proposes a new maximum efficiency point tracking (MEPT) technique that will achieve the highest efficiency for DC-DC converters by automatically tracking converter efficiency while changing the switching frequency and dead-time control parameters. This new technique helps identify optimal values of each parameter at different power levels. In this paper, the developed MEPT technique is theoretically analyzed and practically verified. The experiment is set up based on a 120W Cascaded Buck-Boost converter, controlled by a centralized digital-signal processor (DSP). It will be shown that the expected theoretical and experimental results are in close agreement with each other.
{"title":"A New Maximum Efficiency Point Tracking Technique for Digital Power Converter with Dual Parameters Control","authors":"Xi Chen, A. Pise, I. Batarseh, J. Elmes","doi":"10.1109/ECCE.2018.8558455","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558455","url":null,"abstract":"This paper proposes a new maximum efficiency point tracking (MEPT) technique that will achieve the highest efficiency for DC-DC converters by automatically tracking converter efficiency while changing the switching frequency and dead-time control parameters. This new technique helps identify optimal values of each parameter at different power levels. In this paper, the developed MEPT technique is theoretically analyzed and practically verified. The experiment is set up based on a 120W Cascaded Buck-Boost converter, controlled by a centralized digital-signal processor (DSP). It will be shown that the expected theoretical and experimental results are in close agreement with each other.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127954805","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8557612
Faris E. Alfaris, N. Yousefpoor, S. Bhattacharya
Recently, renewable wind generations (WG) is enjoying a rapid growth globally amongst other renewable energy sources due to their lower cost and technology advancement. However, the intermittent nature of wind energy and performance of the attached induction generators inevitably poses some challenges to the power grid integrated large-scale wind-farms (WF), especially in case of weak power system. These challenges include frequency oscillations, voltage variation and power quality issues. To overcome these problems and facilitate the WF integration, this study proposes a modular static distribution controller (MSDC) at the WF point of interconnection (POI). The MSDC is composed of a dc-ac power converter connected to a dc/dc chopper converter and energy storage system. The overall power electronic system is considered as a versatile controller which is connected at the POI of WFs, and it can perform several tasks including frequency regulation, reactive power support, voltage control, harmonic filtering, power smoothing, and dynamic load balancing. The detailed model of the MSDC is presented and its control system is developed. In this paper, the dynamic performance of MSDC system is evaluated to achieve different objectives, and the operation of MSDC is validated in an actual weak power system under different modes of operation.
{"title":"Modular Static Distribution Controller for Distributed Energy Resource Generation Applications","authors":"Faris E. Alfaris, N. Yousefpoor, S. Bhattacharya","doi":"10.1109/ECCE.2018.8557612","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557612","url":null,"abstract":"Recently, renewable wind generations (WG) is enjoying a rapid growth globally amongst other renewable energy sources due to their lower cost and technology advancement. However, the intermittent nature of wind energy and performance of the attached induction generators inevitably poses some challenges to the power grid integrated large-scale wind-farms (WF), especially in case of weak power system. These challenges include frequency oscillations, voltage variation and power quality issues. To overcome these problems and facilitate the WF integration, this study proposes a modular static distribution controller (MSDC) at the WF point of interconnection (POI). The MSDC is composed of a dc-ac power converter connected to a dc/dc chopper converter and energy storage system. The overall power electronic system is considered as a versatile controller which is connected at the POI of WFs, and it can perform several tasks including frequency regulation, reactive power support, voltage control, harmonic filtering, power smoothing, and dynamic load balancing. The detailed model of the MSDC is presented and its control system is developed. In this paper, the dynamic performance of MSDC system is evaluated to achieve different objectives, and the operation of MSDC is validated in an actual weak power system under different modes of operation.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115844600","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}
An active variable gate drive (AVGD) method based on FPGA and comparators for high-power IGBT modules is proposed in this paper to suppress IGBT collector current overshoot. Since conventional way that using larger gate resistor will limit the switching speed and increase switching loss, a variable gate drive is presented to change the gate resistor value in different stages during turn-on process which are identified more accurately by an innovative stage detection method using comparator feedbacks under the control of FPGA. The control response is ultra-fast that IGBT gate charging speed will slow down in time during the specific current rising process. Consequently, compared to conventional way, the current overshoot can be effectively suppressed and switching loss can be reduced as well. In order to verify the feasibility of the proposed AVGD method, a double-pulse experiment is conducted on a 1200V/400A IGBT module finally.
{"title":"Active Variable Gate Drive for Suppressing IGBT Collector Current Overshoot","authors":"Yan-Hua Pan, Rui Wang, Lin Liang, Jinyuan Li, Lubin Han, Guoqiang Tan, Yu Chen","doi":"10.1109/ECCE.2018.8558271","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558271","url":null,"abstract":"An active variable gate drive (AVGD) method based on FPGA and comparators for high-power IGBT modules is proposed in this paper to suppress IGBT collector current overshoot. Since conventional way that using larger gate resistor will limit the switching speed and increase switching loss, a variable gate drive is presented to change the gate resistor value in different stages during turn-on process which are identified more accurately by an innovative stage detection method using comparator feedbacks under the control of FPGA. The control response is ultra-fast that IGBT gate charging speed will slow down in time during the specific current rising process. Consequently, compared to conventional way, the current overshoot can be effectively suppressed and switching loss can be reduced as well. In order to verify the feasibility of the proposed AVGD method, a double-pulse experiment is conducted on a 1200V/400A IGBT module finally.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131379784","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8557955
Akansha Garg, B. Joshi, R. Oruganti
Effective real time power management is required in a DC microgrid for handling intermittency of renewable energy sources, varying load demand and battery status so as to achieve DC bus voltage regulation. Also, it helps in better utilization of the resources, thus improving energy availability to the loads and reducing system cost. DC Bus Signaling (DBS) is an economical method for power management in a DC microgrid. A DBS scheme which ensures effective power handling under all conditions and without regard to sizing of grid elements is the focus of current work. In this paper, a modularized simulation model for a DC microgrid is presented, which allows easy extension for various purposes, such as long duration performance and economic analysis along with the power flow analysis in the DC grid.
{"title":"Modeling a DC Microgrid with Real Time Power Management Using DC Bus Signalling","authors":"Akansha Garg, B. Joshi, R. Oruganti","doi":"10.1109/ECCE.2018.8557955","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557955","url":null,"abstract":"Effective real time power management is required in a DC microgrid for handling intermittency of renewable energy sources, varying load demand and battery status so as to achieve DC bus voltage regulation. Also, it helps in better utilization of the resources, thus improving energy availability to the loads and reducing system cost. DC Bus Signaling (DBS) is an economical method for power management in a DC microgrid. A DBS scheme which ensures effective power handling under all conditions and without regard to sizing of grid elements is the focus of current work. In this paper, a modularized simulation model for a DC microgrid is presented, which allows easy extension for various purposes, such as long duration performance and economic analysis along with the power flow analysis in the DC grid.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"266 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132496361","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8558201
Xinggang Fan, Dawei Li, R. Qu, Cong Wang
This paper presents a hybrid thermal model for fast and accurate temperature prediction of high power density permanent magnet machines with concentrated windings. It combines a simplified lumped-parameter thermal network (LPTN) of the whole machine with a 2-D analytical thermal model of the concentrated winding through the Dirichlet boundary conditions. The 2-D analytical winding thermal model is intended to obtain the detailed winding temperature distribution within the slot by solving the Poisson's Equation. The proposed hybrid thermal model could calculate temperatures quickly and accurately, especially for the winding with a large temperature gradient. A test rig of a water-cooled permanent magnet (PM) machines with concentrated winding intended for electrical vehicle (EV) is implemented to validate the proposed thermal model.
{"title":"A Combined 2-D Analytical and Lumped-Parameter Thermal Model for High Power Density Permanent Magnet Machines with Concentrated Windings","authors":"Xinggang Fan, Dawei Li, R. Qu, Cong Wang","doi":"10.1109/ECCE.2018.8558201","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558201","url":null,"abstract":"This paper presents a hybrid thermal model for fast and accurate temperature prediction of high power density permanent magnet machines with concentrated windings. It combines a simplified lumped-parameter thermal network (LPTN) of the whole machine with a 2-D analytical thermal model of the concentrated winding through the Dirichlet boundary conditions. The 2-D analytical winding thermal model is intended to obtain the detailed winding temperature distribution within the slot by solving the Poisson's Equation. The proposed hybrid thermal model could calculate temperatures quickly and accurately, especially for the winding with a large temperature gradient. A test rig of a water-cooled permanent magnet (PM) machines with concentrated winding intended for electrical vehicle (EV) is implemented to validate the proposed thermal model.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132508031","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8557659
Hassan Abdelgabir, A. Elrayyah, Y. Sozer
The objective of this paper is to determine the location and the size of the renewable energy sources to be installed to a power system with a number of conventional generators. Since renewable energy sources (RESs) usually have fast dynamics and low inertia, conventional generators could encounter large disturbances in their productions. As the magnitudes of the disturbance exceed certain limits, instability could be induced in the operation of various generators. The impact of installing certain RES capacity at specific nodes on the stability and operation of the power system is proposed to be evaluated through developing a modified load flow analysis model to the microgrid system and analyzing the impact of the variation in RES production on the distributed generators. The proposed method automatically checks for the optimum placement of the RES to improve the stability of the system. The optimum placement point is referred to as the center of mass point for the microgrid system.
{"title":"A Center of Mass Determination for the Optimum Placement and Deployment of the Renewable Energy Sources for Micogrids","authors":"Hassan Abdelgabir, A. Elrayyah, Y. Sozer","doi":"10.1109/ECCE.2018.8557659","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557659","url":null,"abstract":"The objective of this paper is to determine the location and the size of the renewable energy sources to be installed to a power system with a number of conventional generators. Since renewable energy sources (RESs) usually have fast dynamics and low inertia, conventional generators could encounter large disturbances in their productions. As the magnitudes of the disturbance exceed certain limits, instability could be induced in the operation of various generators. The impact of installing certain RES capacity at specific nodes on the stability and operation of the power system is proposed to be evaluated through developing a modified load flow analysis model to the microgrid system and analyzing the impact of the variation in RES production on the distributed generators. The proposed method automatically checks for the optimum placement of the RES to improve the stability of the system. The optimum placement point is referred to as the center of mass point for the microgrid system.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132562296","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8558387
A. Julian, G. Oriti, C. Ji, P. Zanchetta
A power electronics-based energy management system (EMS) controls sources, energy storage and loads to form a microgrid. It includes an inverter to interface the DC bus with AC loads (or AC sources in the case of a grid connected system) and DC/DC converters to interface sources and energy storage to the DC bus. This paper presents the power quality analysis for an EMS operating in islanding mode, with batteries as back-up power for critical loads. Possible applications for this architecture are remote military camps and shipboard power. A novel control scheme with repetitive control and active damping is shown to meet the requirements demanded by MIL-STD-1399 for distribution of shipboard AC electric power.
{"title":"Power Quality Improvement in a Single-Phase Energy Management System Operating in Islanding Mode","authors":"A. Julian, G. Oriti, C. Ji, P. Zanchetta","doi":"10.1109/ECCE.2018.8558387","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558387","url":null,"abstract":"A power electronics-based energy management system (EMS) controls sources, energy storage and loads to form a microgrid. It includes an inverter to interface the DC bus with AC loads (or AC sources in the case of a grid connected system) and DC/DC converters to interface sources and energy storage to the DC bus. This paper presents the power quality analysis for an EMS operating in islanding mode, with batteries as back-up power for critical loads. Possible applications for this architecture are remote military camps and shipboard power. A novel control scheme with repetitive control and active damping is shown to meet the requirements demanded by MIL-STD-1399 for distribution of shipboard AC electric power.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134223451","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8558327
Yongdae Kwon, Jin-Hyuk Park, Kyo-Beum Lee
This paper proposes current ripple reduction algorithm for zero voltage switching (ZVS) operation of boost-type DC/DC converter. Fuel-cell system in this paper, DC-DC converter and single-phase inverter are connected. The DC-link voltage contains the second harmonics when the converter interconnected to the single-phase inverter. This AC ripple component makes some defects to the system. The inductor current leaves the ZVS operation region, thus the hard switching of the converter reduces the efficiency of the system. Moreover, this ripple component also makes the stress to the fuel-cell, thus a life time of the fuel-cell is decreased. This paper proposes a current ripple reduction control for ZVS operation of a fuel-cell system. In this paper, the higher type controller with a fast dynamic response is applied to the boost converter. The validity of the proposed control algorithm and the improvement of efficiency of the converter are verified by PSIM simulations with a 1-kW DC-DC converter system.
{"title":"Current Ripple Reduction Control for ZVS Operation of a Fuel-Cell System","authors":"Yongdae Kwon, Jin-Hyuk Park, Kyo-Beum Lee","doi":"10.1109/ECCE.2018.8558327","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8558327","url":null,"abstract":"This paper proposes current ripple reduction algorithm for zero voltage switching (ZVS) operation of boost-type DC/DC converter. Fuel-cell system in this paper, DC-DC converter and single-phase inverter are connected. The DC-link voltage contains the second harmonics when the converter interconnected to the single-phase inverter. This AC ripple component makes some defects to the system. The inductor current leaves the ZVS operation region, thus the hard switching of the converter reduces the efficiency of the system. Moreover, this ripple component also makes the stress to the fuel-cell, thus a life time of the fuel-cell is decreased. This paper proposes a current ripple reduction control for ZVS operation of a fuel-cell system. In this paper, the higher type controller with a fast dynamic response is applied to the boost converter. The validity of the proposed control algorithm and the improvement of efficiency of the converter are verified by PSIM simulations with a 1-kW DC-DC converter system.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134447406","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8557755
Nanaho Kawata, A. Chiba
In this paper, a design of a switched reluctance generator has been investigated if it can be competitive to the rare-earth PM generator applied in the leading latest hybrid vehicle. It is found that competitive efficiency and reduced material cost are possible with the switched reluctance generator with careful machine designing and with an increased gear ratio in a step up gear.
{"title":"Design of Switched Reluctance Generator for Competitive Energy Efficiency in the Latest Hybrid Electric Vehicle","authors":"Nanaho Kawata, A. Chiba","doi":"10.1109/ECCE.2018.8557755","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557755","url":null,"abstract":"In this paper, a design of a switched reluctance generator has been investigated if it can be competitive to the rare-earth PM generator applied in the leading latest hybrid vehicle. It is found that competitive efficiency and reduced material cost are possible with the switched reluctance generator with careful machine designing and with an increased gear ratio in a step up gear.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"367 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134516876","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 : 2018-09-01DOI: 10.1109/ECCE.2018.8557879
Cheng Zeng, Zongjian Li, F. Yuan, Xi Jiang, Zhizhi He, Z. Shen, Jun Wang
SiC Schottky diode has been widely used as the antiparallel freewheeling diode in the IGBT or SiC MOSFET based power inverter applications. However, these solutions have drawbacks of large switching loss of the IGBT or costly SiC MOSFET. To achieve the cost-effectiveness and higher conversion efficiency, we propose a low power SiC MOSFET with the synchronous rectifier (SR) operation in replacement of the SiC Schottky diode in an IGBT based voltage source inverter (VSI). The SiC MOSFET works as an auxiliary switch of the main IGBT, greatly reducing the forward conduction loss. Its SR operates in the reverse conduction, greatly reducing the conduction loss, especially at light load. And it also enables the zero voltage switching operation of the IGBT, greatly reducing the switching loss of the IGBT. The conduction and switching characteristics of the SiC Schottky diode and SR are measured and compared. Then a 4kW single-phase VSI prototype based on these two solutions are investigated. Experimental results show that the SiC SR operation can achieve 28% smaller total power losses, 0.9% higher conversion efficiency and 50°C lower case temperature of power switches than the SiC Schottky diode in VSI.
{"title":"Comparison of SiC Synchronous Rectification and Schottky Diode in Voltage Source Inverters","authors":"Cheng Zeng, Zongjian Li, F. Yuan, Xi Jiang, Zhizhi He, Z. Shen, Jun Wang","doi":"10.1109/ECCE.2018.8557879","DOIUrl":"https://doi.org/10.1109/ECCE.2018.8557879","url":null,"abstract":"SiC Schottky diode has been widely used as the antiparallel freewheeling diode in the IGBT or SiC MOSFET based power inverter applications. However, these solutions have drawbacks of large switching loss of the IGBT or costly SiC MOSFET. To achieve the cost-effectiveness and higher conversion efficiency, we propose a low power SiC MOSFET with the synchronous rectifier (SR) operation in replacement of the SiC Schottky diode in an IGBT based voltage source inverter (VSI). The SiC MOSFET works as an auxiliary switch of the main IGBT, greatly reducing the forward conduction loss. Its SR operates in the reverse conduction, greatly reducing the conduction loss, especially at light load. And it also enables the zero voltage switching operation of the IGBT, greatly reducing the switching loss of the IGBT. The conduction and switching characteristics of the SiC Schottky diode and SR are measured and compared. Then a 4kW single-phase VSI prototype based on these two solutions are investigated. Experimental results show that the SiC SR operation can achieve 28% smaller total power losses, 0.9% higher conversion efficiency and 50°C lower case temperature of power switches than the SiC Schottky diode in VSI.","PeriodicalId":415217,"journal":{"name":"2018 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131595684","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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