2017 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献_第8页

High-efficiency bidirectional DC-DC converter with high voltage conversion ratio 高效双向DC-DC变换器，具有高电压转换比

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930856

Min-Kwon Yang, Myung-chul Lee, W. Choi

引用次数: 2

A >98% efficient >150 kRPM high-temperature liquid-cooled SiC VFD for hybrid-electric turbochargers 用于混合动力涡轮增压器的高温液冷SiC VFD效率>98% >150 kRPM

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7931226

T. Beechner, A. Carpenter

{"title":"A >98% efficient >150 kRPM high-temperature liquid-cooled SiC VFD for hybrid-electric turbochargers","authors":"T. Beechner, A. Carpenter","doi":"10.1109/APEC.2017.7931226","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931226","url":null,"abstract":"This paper presents a high-efficiency, high-speed variable frequency drive (VFD) used in an electrically-assisted turbocharging application with the goal of reducing turbo lag and extracting electrical energy during vehicle braking and deceleration events. To maximize switching frequency and achieve high-temperature operation, SiC MOSFETs are used in lieu of Si IGBTs or MOSFETs. Furthermore, the VFD is cooled using the existing engine coolant loop, which operates near 105 deg. C. Eliminating the need for an additional 65 deg. C liquid cooling loop, which are typical of electric vehicles, significantly reducing system complexity, volume, and weight and simplifying integration. A digital sliding-mode-observer (SMO) was developed to drive the machine at a ramp rate of over 68 kRPM/sec. A dead-time compensation algorithm based upon adaptive notch filters was used to eliminate low-order current harmonics, which can degrade the sensorless control algorithm's performance. Experimental results are presented confirming the VFD's efficiency, dynamic control performance, low-THD load current, and high-temperature operation. Lastly, using a previously developed electro-thermal model, the VFD is extended to higher voltage (450 Vac) motors for application in future vehicle traction drives. The results show that the presented drive exceeds the Department of Energy's targets for traction drives in 2020.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"2004 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":"116897949","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

Droop-free distributed control with event-triggered communication in DC micro-grid 基于事件触发通信的直流微电网无下垂分布式控制

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930842

Renke Han, N. L. Diaz Aldana, L. Meng, J. Guerrero, Qiuye Sun

引用次数: 10

A battery equalizer with zero-current switching and zero-voltage gap among cells based on three-resonant-state LC converters 基于三谐振态LC变换器的零电流开关和电池间零电压间隙电池均衡器

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930920

Yunlong Shang, N. Cui, Qi Zhang, Chenghui Zhang

引用次数: 10

On-line fault diagnosis of multi-phase drives using self-recurrent wavelet neural networks with adaptive learning rates 基于自适应学习率自循环小波神经网络的多相驱动在线故障诊断

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930751

N. Torabi, V. M. Sundaram, H. Toliyat

引用次数: 13

DC link bus design for high frequency, high temperature converters 用于高频、高温变换器的直流链路总线设计

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930789

J. Stewart, J. Neely, J. Delhotal, J. Flicker

{"title":"DC link bus design for high frequency, high temperature converters","authors":"J. Stewart, J. Neely, J. Delhotal, J. Flicker","doi":"10.1109/APEC.2017.7930789","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930789","url":null,"abstract":"Advancements in IGBT device performance and reliability have been important for widespread electric vehicle (EV) and hybrid electric vehicle (HEV) adoption. However, further improvements in device performance are now limited by silicon's (Si) inherent material characteristics. New improvements are being realized in converter efficiency and power density with wide bandgap materials, such as silicon-carbide (SiC) and gallium nitride (GaN), which permit faster switching frequencies and higher temperature operation. On the horizon are ultra-wide bandgap materials such as aluminum nitride (AlN) and aluminum gallium nitride (AlGaN) which hold the potential to push the envelope further. As device operating temperatures and switching frequencies increase, however, the balance of the power conversion system becomes more important: DC bus design, filter components and thermal management. This paper considers a typical 6-puIse inverter application common in EV and HEV power systems and provides an alternative, cost-effective solution to the design of a low-impedance DC bus. In contrast to systems that use bus bars with film or electrolytic dc link capacitors, the proposed high-frequency (HF) bus design reduces parasitic resistance and inductance, tolerates higher temperature and is potentially scalable to MHz frequencies. A prototype was built and compared in simulation to the DC bus design documented for the 2010 Toyota Prius.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"63 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":"132424277","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: 15

High frequency transformer design for modular power conversion from medium voltage AC to 400V DC 高频变压器设计，用于中压交流到400V直流的模块化电源转换

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7931108

Shishuo Zhao, Qiang Li, F. Lee

{"title":"High frequency transformer design for modular power conversion from medium voltage AC to 400V DC","authors":"Shishuo Zhao, Qiang Li, F. Lee","doi":"10.1109/APEC.2017.7931108","DOIUrl":"https://doi.org/10.1109/APEC.2017.7931108","url":null,"abstract":"The paper presents a high frequency modular medium voltage AC (4160 VAC and 13.8 VAC) to low voltage DC (400 VDC) power conditioning system block (PCSB) that are scalable so that they can be used for micro grids of different scale (several-hundred kW to multi-MW). The modular approach is intended to result in higher-volume, lower-cost, less-loss power electronics building blocks that service many applications, such as DC data center and electric vehicle charge station. In this paper, a 225kW, 500 kHz PCSB is demonstrated to direct converter 4160 VAC to 400V DC for a DC date center. WBG power devices and CLLC resonant converter are used to minimize switching related loss at high frequency. The high frequency transformer of CLLC resonant converter is one of the key elements for the proposed modular approach. This paper will focus on high frequency transformer design to realize high-voltage-isolation, high-efficiency and high-density at the same time. Based on a split winding transformer structure, transformer insulation material and dimension parameters are determined referring to insulation standard. Transformer magnetic loss model is reviewed based on which loss design trade-off is carefully analyzed. Finally a 500 kHz transformer prototype has been developed and demonstrated with 30kV isolation capability, whole CLLC resonant converter holds 98% peak efficiency and 48 W/in3 power density.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"2019 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":"114238750","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: 47

High power density high efficiency wide input voltage range LLC resonant converter utilizing E-mode GaN switches 利用e型GaN开关的高功率密度、高效率、宽输入电压范围LLC谐振变换器

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7930716

A. Amirahmadi, M. Domb, E. Persson

{"title":"High power density high efficiency wide input voltage range LLC resonant converter utilizing E-mode GaN switches","authors":"A. Amirahmadi, M. Domb, E. Persson","doi":"10.1109/APEC.2017.7930716","DOIUrl":"https://doi.org/10.1109/APEC.2017.7930716","url":null,"abstract":"The LLC resonant power supply topology shows great promise for meeting the demands of increased power density while maintaining high efficiency. But there is a tradeoff between maximizing efficiency and accommodating regulation over a wide input voltage range. The most efficient designs have narrow input voltage range, therefore requiring a large DC bus capacitor to support the required holdup time, thus impeding the goal of improved density. This paper presents a design approach which enables optimization of a modified LLC resonant converter for highest efficiency, while simultaneously extending the input regulation range from 340V-400V to 280V-400V by adding a small capacitor in series with the magnetizing inductance. This so-called ‘LCLC’ topology can then use a 2X smaller DC bus cap and still maintain the same holdup time. The primary side is driven with a full bridge to reduce ripple-current on the smaller DC bus cap. A 3 kW high-frequency, high-density example is shown using a GaN full-bridge on the input side to achieve 98.4% peak efficiency while operating at 350 kHz. Experimental results compare the LCLC to a conventional LLC under identical conditions and demonstrate the wide operating range and high-density while maintaining the same high efficiency over the normal operating range.","PeriodicalId":201289,"journal":{"name":"2017 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"58 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":"122263909","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: 12

Techniques of the modeling, measurement and reduction of common mode noise for a multi-winding switching transformer 多绕组开关变压器共模噪声的建模、测量和降低技术

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7931051

Yiming Li, Huan Zhang, Shuo Wang, H. Sheng, Srikanth Lakshmikanthan, Choon Ping Chng

引用次数: 12

Reliability study and modelling of IGBT press-pack power modules IGBT压装电源模块可靠性研究与建模

2017 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2017-03-26 DOI: 10.1109/APEC.2017.7931082

H. Long, M. Sweet, E. Narayanan, Gangru Li

引用次数: 6