2016 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献

Mode transition control strategy for multiple inverter based distributed generators operating in grid-connected and stand-alone mode 多逆变器分布式发电机组并网单机模式切换控制策略

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-05-12 DOI: 10.1109/APEC.2016.7468352

O. Kulkarni, S. Doolla, B. G. Fernandes

引用次数: 6

Active common-mode voltage reduction in a fault-tolerant three-phase inverter 容错三相逆变器的有源共模电压降低

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-05-12 DOI: 10.1109/APEC.2016.7468264

D. Mohammadi, S. Ahmed-Zaid

引用次数: 3

A novel model predictive control algorithm to suppress the zero-sequence circulating currents for parallel three-phase voltage source inverters 一种新型模型预测控制算法抑制并联三相电压源逆变器零序循环电流

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-05-12 DOI: 10.1109/APEC.2016.7468365

Zicheng Zhang, Alian Chen, Xiangyang Xing, Chenghui Zhang

引用次数: 19

Stability analysis and improvement of solid state transformer (SST)-paralleled inverters system using negative impedance feedback control 采用负阻抗反馈控制的固态变压器-并联逆变器系统稳定性分析及改进

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-05-12 DOI: 10.1109/APEC.2016.7468177

Qing Ye, Hui Li

引用次数: 7

A sustained increase of input current distortion in active input current shapers to eliminate electrolytic capacitor for designing ac to dc HB-LED drivers for retrofit lamps applications 有源输入电流整形器中的输入电流畸变持续增加，以消除电解电容，用于设计用于改造灯具应用的交流到直流HB-LED驱动器

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-05-12 DOI: 10.1109/APEC.2016.7468115

D. G. Lamar, M. Arias, Alberto Rodríguez, Javier Sebastián, A. Fernández, J. Villarejo

{"title":"A sustained increase of input current distortion in active input current shapers to eliminate electrolytic capacitor for designing ac to dc HB-LED drivers for retrofit lamps applications","authors":"D. G. Lamar, M. Arias, Alberto Rodríguez, Javier Sebastián, A. Fernández, J. Villarejo","doi":"10.1109/APEC.2016.7468115","DOIUrl":"https://doi.org/10.1109/APEC.2016.7468115","url":null,"abstract":"Nowadays, the solid-sate lighting technology evolution has changed traditional solutions in lighting. High-Brightness Light-Emitting Diodes (HB-LEDs) have become very attractive light sources due to their excellent characteristics: high efficiency, high life-time and low maintenance. It is evident that HB-LED drivers must be durable and efficient to achieve these advantages. Moreover, for replacing incandescent bulbs, the ac-dc HB-LED driver must be low cost and comply with international regulations (i.e. injection of low frequency harmonics into the mains). Traditionally, authors have focused its efforts on increasing efficiency. All these solutions obviate the elimination of traditional electrolytic capacitor of ac to dc converters, highlighting that this is the price to pay for a very low-cost solution. This paper presents a new proposal to design a simple and low-cost ac to dc HB-LED driver for retrofit lamps without electrolytic capacitor. The proposed solution comes from a very well-known technique used in the past: Active Input Current Shapers (AICS), but in this case without electrolytic capacitor. If the electrolytic capacitor of an AICS is removed, then low frequency ripple arises in its intermediate dc bus, increasing the distortion of the line input which already has appreciable distortion. However, the increase of distortion is very slight. Also, the low frequency ripple is not transferred to the output due to the high output dynamic response of AICS, avoiding flickering. This paper presents a theoretical analysis that guarantees a trade of between compliance with international regulations and the use of other capacitor technologies different from the electrolytic one. Finally, a 24W experimental prototype has been built and tested in order to validate the theoretical results presented in this digest.","PeriodicalId":143091,"journal":{"name":"2016 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134514702","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: 2

Thermal and electrical co-design of a modular high-density single-phase inverter using wide-bandgap devices 采用宽带隙器件的模块化高密度单相逆变器的热、电协同设计

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-03-20 DOI: 10.1109/APEC.2016.7468043

Steven Chung, M. Nasr, David Guirguis, Masafumi Otsuka, S. Poshtkouhi, David K. W. Li, V. Palaniappan, David Romero, C. Amon, R. Orr, O. Trescases

{"title":"Thermal and electrical co-design of a modular high-density single-phase inverter using wide-bandgap devices","authors":"Steven Chung, M. Nasr, David Guirguis, Masafumi Otsuka, S. Poshtkouhi, David K. W. Li, V. Palaniappan, David Romero, C. Amon, R. Orr, O. Trescases","doi":"10.1109/APEC.2016.7468043","DOIUrl":"https://doi.org/10.1109/APEC.2016.7468043","url":null,"abstract":"This paper explores the multi-disciplinary design challenges in building a 240 VAC, 2 kVA modular single-phase inverter with high power-density using wide-bandgap transistors. The compromise between the electrical and mechanical design is extremely important in any high-density power converter. In this work the electrical and mechanical systems were iteratively co-designed using detailed 3D thermal and air-flow simulations. Custom copper heat-sinks and heat-pipes were developed for optimal thermal management. The inverter uses three soft-switching sub-inverters in parallel, which are controlled using a novel digital Hysteretic Current Mode Control (HCMC) scheme. To achieve a flat high efficiency curve with low THD over a wide load range, two operating modes are used: 1) Boundary Conduction Mode (BCM) with a slight negative inductor valley current for soft-switching, and 2) Continuous Conduction Mode (CCM) to limit the required saturation current in the inductors. The design of an active power decoupling scheme to minimize input capacitance is also discussed. The designed single-phase inverter has a volume of 33.1 in3 and resulting theoretical power-density of 60.3 W/in3 at 2 kW load. A measured efficiency of 97.7% is achieved for a single sub-inverter with 4.5% THD at 632.7 W.","PeriodicalId":143091,"journal":{"name":"2016 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115284223","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: 8

DC-DC power converter controller for SOC balancing of paralleled battery system 用于并联电池系统SOC平衡的DC-DC功率变换器控制器

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-03-20 DOI: 10.1109/APEC.2016.7468122

J. A. Abu Qahouq, Lin Zhang, Yuan Cao, Bharat Balasubramanian

引用次数: 12

Evaluation of power flow control for an all-electric warship power system with pulsed load applications 舰船全电系统脉冲负荷功率流控制评价

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-03-20 DOI: 10.1109/APEC.2016.7468377

Jason C. Neely, L. Rashkin, Marvin A. Cook, David G. Wilson, Steven F. Glover

{"title":"Evaluation of power flow control for an all-electric warship power system with pulsed load applications","authors":"Jason C. Neely, L. Rashkin, Marvin A. Cook, David G. Wilson, Steven F. Glover","doi":"10.1109/APEC.2016.7468377","DOIUrl":"https://doi.org/10.1109/APEC.2016.7468377","url":null,"abstract":"Future U.S. Navy ships will require power systems that meet more stringent agility, efficiency, scalability, controllability and resiliency requirements. Modularity and the ability to interconnect power systems having their own energy storage, generation, and loads is an enabling capability. To aid in the design of power system controls, much of what has been learned from advances in the control of networked microgrids is being applied. Developing alternative methods for controlling and analyzing these systems will provide insight into tradeoffs that can be made during the design phase. This paper considers the problem of electric ship power disturbances in response to pulsed loads, in particular, to electromagnetic launch systems. Recent literature has indicated that there exists a trade-off in information and power flow and that intelligent, coordinated control of power flow in a microgrid system (i.e. such as an electric ship) can modify energy storage hardware requirements. The control presented herein was developed to provide the necessary flexibility with little computational burden. It is described analytically and then demonstrated in simulation and hardware.","PeriodicalId":143091,"journal":{"name":"2016 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115406122","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: 26

Design procedure for multi-phase external rotor permanent magnet assisted synchronous reluctance machines 多相外转子永磁辅助同步磁阻电机设计程序

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-03-20 DOI: 10.1109/APEC.2016.7468012

S. S. R. Bonthu, Seungdeog Choi

{"title":"Design procedure for multi-phase external rotor permanent magnet assisted synchronous reluctance machines","authors":"S. S. R. Bonthu, Seungdeog Choi","doi":"10.1109/APEC.2016.7468012","DOIUrl":"https://doi.org/10.1109/APEC.2016.7468012","url":null,"abstract":"This paper presents the optimal design procedure to develop multi-phase external rotor permanent magnet assisted synchronous reluctance machines (EPMa-SynRMs). With its higher torque density and higher power density compared to the internal rotor PMa-SynRM, external rotor PMa-SynRM is best suitable in applications to electric bikes and aircrafts. Enormous amount of research has been done in optimizing internal rotor PM machines. However, an efficient optimization technique to develop a five-phase EPMa-SynRM is not presented in the literature. The optimization of the EPMa-SynRMs is important to provide better performance characteristics and controllability in terms of lower back-EMF harmonics and cogging torque for critical applications. In this study, a detailed analysis on developing magnetic equivalent circuit for the multi-phase EPMa-SynRM is presented. Differential evolution (DE) optimization algorithm is utilized to develop the optimal models for five-phase EPMa-SynRM. The effects of rotational forces on the rotor in both internal and external rotor PMa-SynRMs are analytically studied. A thermal model for the proposed EPMa-SynRM structure is presented. Initial simulation results for stress and thermal heat flow for the proposed designs are presented. Furthermore, electromagnetic finite element simulation results such as back-EMF, flux linkage, cogging torque, and their harmonics are presented for the developed five-phase EPMa-SynRM model. The best design which has lower back-EMF harmonics and cogging torque is chosen to fabricate and conduct experimental tests.","PeriodicalId":143091,"journal":{"name":"2016 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123137257","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: 14

High efficiency LLC converter design for universal battery chargers 通用电池充电器的高效LLC转换器设计

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-03-20 DOI: 10.1109/APEC.2016.7468225

N. Shafiei, S. A. Arefifar, Mohammad Ali Saket, M. Ordonez

{"title":"High efficiency LLC converter design for universal battery chargers","authors":"N. Shafiei, S. A. Arefifar, Mohammad Ali Saket, M. Ordonez","doi":"10.1109/APEC.2016.7468225","DOIUrl":"https://doi.org/10.1109/APEC.2016.7468225","url":null,"abstract":"In order to support different types of rechargeable batteries (e.g. Li-Ion, Lead-Acid, NiMh), the design of universal battery chargers must focus on wide conversion efficiency instead of traditional peak efficiency design. Wide efficiency is the ability to maintain high performance within the nominal output power while supporting the charging cycle voltage of different battery technologies. The objective of this paper is to tackle this new wide efficiency technical challenge and provide a design methodology that focuses on multiple operating points rather than obtaining peak efficiency at one operating point. The universal battery charger is expected to provide a demanding output voltage range between nominal and 1.5 times nominal and sustaining maximum power delivery with high efficiency. The proposed LLC converter design procedure successfully selects the resonant tank elements and operating frequencies to maximize efficiency for the maximum power region. The design procedure employs analytical equations and a Tabu Search algorithm (TS) for a 96V DC, 960W universal battery charger implementation. The experimental results exhibit the excellent performance of the designed converter, which has an average efficiency of 96.1% within the nominal output power delivery range (between 96V DC and 144V DC output voltage range) with extreme regulation capability.","PeriodicalId":143091,"journal":{"name":"2016 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114678932","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