发布求助
文献互助 智能选刊 最新文献

2017 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献

筛选
英文 中文
Impacts of ripple current to the loading and lifetime of power semiconductor device 纹波电流对功率半导体器件负载和寿命的影响
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7931021
Ke Ma, U. Choi, F. Blaabjerg
{"title":"Impacts of ripple current to the loading and lifetime of power semiconductor device","authors":"Ke Ma, U. Choi, F. Blaabjerg","doi":"10.1109/APEC.2017.7931021","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931021","url":null,"abstract":"The thermal loading of power electronics devices is determined by many factors and has being a crucial design consideration because it is closely related to the reliability and cost of the converter system. In this paper the impacts of the ripple current to the loss and thermal loading, as well as reliability performances of power devices are comprehensively investigated and tested. It is concluded that the amplitude of ripple current may modify the loss and thermal loading of the power devices, especially under the conditions of converter with low power output, and thus the lifetime of devices could be disturbed.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129656986","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}
引用次数: 4
A novel active gate driver for static and dynamic current balancing of parallel-connected IGBTs 一种用于并联igbt静态和动态电流平衡的新型有源栅极驱动器
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930786
Ying Chen, F. Zhuo, Wenjie Pan, Fan Zhang, Lei Feng
{"title":"A novel active gate driver for static and dynamic current balancing of parallel-connected IGBTs","authors":"Ying Chen, F. Zhuo, Wenjie Pan, Fan Zhang, Lei Feng","doi":"10.1109/APEC.2017.7930786","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930786","url":null,"abstract":"In high power applications, the insulated-gate bipolar transistors (IGBTs) are often required to be connected in parallel in order to withstand the large load current. However, the current of paralleled IGBTs may not be shared equally due to spread of parameters. The current unbalance in transient and steady state can result in overheat and overcurrent destruction of the devices. In this paper a novel active gate driver is proposed to optimize both the static and dynamic current sharing of paralleled IGBTs automatically. The proposed active gate driver does not need complex digital processing or current measuring and is therefore fast and convenient. Simulations have been done to verify the effectiveness of the proposed strategy and promising results have been obtained. Experimental results show that the proposed gate driver can effectively reduce the static and dynamic current unbalance between parallel connected IGBTs.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"1304 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122085159","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}
引用次数: 10
Leakage current reduction of Z-source four-leg inverter for transformerless pvsystem 无变压器pv系统z源四脚逆变器漏电流减小
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930721
Xiaoqiang Guo, Ran He
{"title":"Leakage current reduction of Z-source four-leg inverter for transformerless pvsystem","authors":"Xiaoqiang Guo, Ran He","doi":"10.1109/APEC.2017.7930721","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930721","url":null,"abstract":"The leakage current reduction is one of the most important issues for transformerless PV systems. The conventional Z-source three-phase PV inverter failed to suppress the leakage current in an effective way. In order to solve the problem, a new modulation strategy for the Z-Source four-leg transformerless PV inverter is proposed in this paper. The common mode loop model presented firstly. And then the common mode voltage behavior and the effect of factors on the leakage current are discussed. A new modulation strategy is proposed to achieve the constant common mode voltage. Therefore, the leakage current can be suppressed effectively. Finally, the proposed strategy is tested, and the results verify the effectiveness of the proposed solution.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117061363","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}
引用次数: 4
Detailed analysis of a current-doubler rectifier for an LLC resonant converter with high output current 高输出电流LLC谐振变换器用倍流整流器的详细分析
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930935
Simon Nigsch, M. Schlenk, K. Schenk
{"title":"Detailed analysis of a current-doubler rectifier for an LLC resonant converter with high output current","authors":"Simon Nigsch, M. Schlenk, K. Schenk","doi":"10.1109/APEC.2017.7930935","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930935","url":null,"abstract":"Current-doubler rectifiers are well-known in conjunction with double ended buck-derived isolated converters. One major purpose for its implementation is the reduction of power losses in the transformer secondary winding. The topic of this paper is an extension to this approach and presents a detailed analysis of a current-doubler rectifier used in an LLC resonant converter. The analysis uses the first harmonic approximation (FHA) approach, which tremendously simplifies the system model, leading to a linear circuit. The design constraints are worked out, such that the converter behavior remains unaltered by adding the current-doubler. By using this type of rectifier, the LLC efficiency can be improved over a traditional approach with a center tapped secondary winding. The secondary side power losses are reduced significantly and the drawback of an unequal coupling between the primary and either one of the two secondary windings is eliminated. Measurements on a prototype verify the analytical and simulation results.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116924314","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}
引用次数: 10
A novel quasi-SEPIC high-voltage boost DC-DC converter 一种新型准sepic高压升压DC-DC变换器
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7931006
Y. Siwakoti, Mohsen N. Soltani, F. Blaabjerg, A. Mostaan
{"title":"A novel quasi-SEPIC high-voltage boost DC-DC converter","authors":"Y. Siwakoti, Mohsen N. Soltani, F. Blaabjerg, A. Mostaan","doi":"10.1109/APEC.2017.7931006","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931006","url":null,"abstract":"This paper proposes a modified coupled-inductor SEPIC dc-dc converter for low power and high voltage gain applications such as for piezoelectric drive systems. The converter uses the same components as of SEPIC converter with an additional diode. Compared to conventional topologies with similar voltage gain expression, the proposed topology uses less components to achieve same or even higher voltage gain. This helps to design a very compact and light weight converter with higher power density at lower cost. Due to brevity, the principle of operation, theoretical analysis and comparison supported by some key experimental results of 5 W prototype are presented in brief.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"250 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132474671","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}
引用次数: 6
A 10MHz, 40V-to-5V clock-synchronized AOT hysteretic converter with programmable soft start technique for automotive USB chargers 10MHz, 40v到5v时钟同步AOT滞回变换器，具有可编程软启动技术，用于汽车USB充电器
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930996
Xugang Ke, Kang Wei, D. Ma
{"title":"A 10MHz, 40V-to-5V clock-synchronized AOT hysteretic converter with programmable soft start technique for automotive USB chargers","authors":"Xugang Ke, Kang Wei, D. Ma","doi":"10.1109/APEC.2017.7930996","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930996","url":null,"abstract":"Adaptive on-time (AOT) hysteretic control has gained increasing popularity in automotive electronics, because of its superior line regulation and fast load transient response. However, it faces serious switching frequency deviation and soft start issues from the conventional implementations. To mitigate these, this paper proposes a clock-synchronized AOT hysteretic control which adaptively synchronizes the switching converter to a desirable reference frequency without degrading its line regulation and load transient response. Meanwhile, a programmable soft start modulator is proposed to allow reliable start-up in heavy load condition and prevent large inrush current from damaging the power devices. Designed on a high voltage (HV) 0.35μm BCD process, the integrated converter achieves a single-stage 40V to 5V voltage conversion with a full load of 15W and a peak efficiency of 90.5%. With the proposed clock-synchronized Ton timer, the switching frequency is maintained at a fixed 10MHz, over the full input, output and load ranges. The programmable soft start modulator achieves 100μs to 6ms soft start time, which greatly suppresses startup inrush current.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131876244","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}
引用次数: 7
Modulation and control of a single-stage HVDC/AC solid state transformer using modular multilevel converter 基于模块化多电平变换器的单级高压直流/交流固态变压器调制与控制
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930951
A. Sahoo, N. Mohan
{"title":"Modulation and control of a single-stage HVDC/AC solid state transformer using modular multilevel converter","authors":"A. Sahoo, N. Mohan","doi":"10.1109/APEC.2017.7930951","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930951","url":null,"abstract":"At high voltage and power levels in utility-scale applications, transformers are needed to step-down grid voltages for integrating renewables and motors. A novel single-stage solid state transformer (SST) interface using modular multilevel converter (MMC) is proposed to interface a low voltage machine with a high voltage DC grid. Due to its modular structure, the high voltage side is easily scalable. This interface has sinusoidal voltages with low dV/dt and sinusoidal currents resulting in low magnetic losses in the high frequency transformer. The machine connected converter is a single-stage matrix converter. At low machine speeds, an advanced control approach is proposed which shifts the control of generating adjustable magnitude voltages at the machine terminals to the MMC on the high voltage side of the transformer. This results in reduced voltage stress across the transformer, matrix converter and the machine and further reduction in losses to boost system efficiency at light load conditions. Simulation and experimental results validate the proposed modulation and control.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134154698","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}
引用次数: 11
A novel three-phase LLC resonant converter with integrated magnetics for lower turn-off losses and higher power density 一种新颖的集成磁性三相LLC谐振变换器，具有更低的关断损耗和更高的功率密度
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930712
M. Noah, S. Kimura, S. Endo, Masayoshi Yamamoto, J. Imaoka, K. Umetani, W. Martínez
{"title":"A novel three-phase LLC resonant converter with integrated magnetics for lower turn-off losses and higher power density","authors":"M. Noah, S. Kimura, S. Endo, Masayoshi Yamamoto, J. Imaoka, K. Umetani, W. Martínez","doi":"10.1109/APEC.2017.7930712","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930712","url":null,"abstract":"The aim of this work is to present a novel topology of a three-phase LLC converter with integrated magnetics. The converter operation and the comprehensive theoretical analysis are presented; this analysis follows the first harmonic approximation (FHA) approach to simplify the system model. Usually, LLC converter achieves zero voltage switching (ZVS) as long as it working in the inductive region. Therefore, the turn off losses are considered as the main source of the switching losses in the converter. In this paper the design in optimized to minimize the switching losses. On the other hand, adapting three discrete transformer cores in this topology will definitely increase the size and volume of the converter. As a result, a novel magnetic integration concept is introduced where all magnetic components of the three-phases are advantageously combined into a single magnetic core to increase the converter power density. Finally, the experimental results are presented to verify the optimized design by showing a reduction in the turn-off losses and the effectiveness of adapting the proposed integrated transformer, in which an increment of 56% in the power density of the converter could be attained.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114728161","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}
引用次数: 21
Soft-switched bidirectional buck-boost converters 软开关双向降压-升压转换器
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930707
Y. Jang, M. Jovanovic
{"title":"Soft-switched bidirectional buck-boost converters","authors":"Y. Jang, M. Jovanovic","doi":"10.1109/APEC.2017.7930707","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930707","url":null,"abstract":"A bidirectional buck-boost converter with a new soft-switching active-snubber cell that reduces switching losses is introduced. Soft-switching cell consists of an active snubber switch, a snubber inductor, and a two-winding transformer with associated magnetizing current reset circuit. The soft-switching cells enable the buck and boost rectifier to turn off with a controlled turn-off rate of their current to minimize corresponding reverse-recovery losses. In addition, in the introduced soft-switching cell, the power-controlling buck and boost switches turn on with zero-voltage switching (ZVS) and the snubber switches turn off with zero-current switching (ZCS). The performance of the proposed bidirectional converter was evaluated on a 5-kW prototype exchanging energy between a 400-V bus and a battery with voltage range between 200 V and 300 V. The 100-kHz prototype circuit exhibits the maximum full-load efficiency of 99.1% in the boost-mode and 98.2% in the buck-mode operation.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122539119","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}
引用次数: 13
A control architecture for low current distortion in bridgeless boost power factor correction rectifiers 无桥升压功率因数校正整流器的低电流畸变控制结构
2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930676
Usama Anwar, R. Erickson, D. Maksimović, K. Afridi
{"title":"A control architecture for low current distortion in bridgeless boost power factor correction rectifiers","authors":"Usama Anwar, R. Erickson, D. Maksimović, K. Afridi","doi":"10.1109/APEC.2017.7930676","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930676","url":null,"abstract":"This paper presents a control architecture that substantially reduces current distortion in bridgeless boost power factor correction (PFC) rectifiers. In the proposed control architecture, the ac line voltage is sensed and the current reference is generated without rectification. This relieves the controller from having to deal with discontinuities around zero-crossing transitions, which eases requirements for the controller bandwidth and reduces distortion. Furthermore, a proportional-integral-squared (PI2) compensator is proposed to mitigate line current phase shift due to an input voltage feed-forward effect, which is particularly pronounced when a small boost inductance is employed. Very low distortion, near-ideal rectifier performance is experimentally verified on a 5 kW bridgeless boost PFC rectifier prototype.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115317773","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}
引用次数: 7
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信