2020 IEEE Applied Power Electronics Conference and Exposition (APEC)最新文献_第7页

Islanding Detection Methods Based on Self-oscillation of Particular Frequency in DC Distribution Systems 基于特定频率自振荡的直流配电系统孤岛检测方法

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124587

Qinghui Huang, Chushan Li, Heya Yang, Yufei Dong, Wuhua Li, Xiangning He, Wei Zhang, Junfei Han

{"title":"Islanding Detection Methods Based on Self-oscillation of Particular Frequency in DC Distribution Systems","authors":"Qinghui Huang, Chushan Li, Heya Yang, Yufei Dong, Wuhua Li, Xiangning He, Wei Zhang, Junfei Han","doi":"10.1109/APEC39645.2020.9124587","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124587","url":null,"abstract":"Detecting the DC-based island is essential for safe operation of DC distribution system. State-of-the-art of islanding detection methods in DC systems mainly utilize the positive feedback principle to shift the voltage amplitude out of the normal range and then trigger over/under voltage protection. However, this has the negative consequences of deteriorating of power quality and causing blackouts in the islanding event. This paper proposes the methods of oscillation of particular frequency as an indicator to detect islanding conditions quickly with less deterioration of power quality and no blackouts. Firstly, the paper establishes the model of the DC distribution system for the purpose of analyzing DC-based islanding mechanism. This paper then introduces two islanding-detection methods that implement the voltage oscillation at particular frequency as an indication of islanding conditions. Finally, the proposed methods are validated through time-domain nonlinear simulations and experimental results from a laboratory-scale DC distribution system.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124049791","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

A Module-Based Hierarchical Microgrid with a Bottom-Up Building Architecture for Rural Electrification 面向农村电气化的基于模块的自底向上结构分层微电网

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124374

Dong Li, Carl Ngai Man Ho, Ken Kingman Siu, Mandip Pokharel

{"title":"A Module-Based Hierarchical Microgrid with a Bottom-Up Building Architecture for Rural Electrification","authors":"Dong Li, Carl Ngai Man Ho, Ken Kingman Siu, Mandip Pokharel","doi":"10.1109/APEC39645.2020.9124374","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124374","url":null,"abstract":"In this paper, a module-based hierarchical microgrid (MG) architecture is proposed to help rural electrification. It provides a bottom-up way to form a MG with multilayer expandability. The proposed MG overcomes the drawback of conventional MG that requires high upfront cost and long leading time. It provides an organic way to form a MG that allows user to scale up the system while the demands growing, which can fully utilize the existing resources. The proposed MG is expandable on different layers that can meet requirements of customers with all power consumption levels. The proposed architecture is based on power unit. Each unit, which contains PV generation and energy storage, can work as a standalone solar home system. Multiple units can be connected as a group to scale up the local power supply. Groups can be interconnected through a public bus with gateway converters to form a community network, which can supply public usages and enables power exchange among the households. A fully decentralized communication-less control method is also proposed to achieve plug-n-play. Detailed design, analysis and implementation of the proposed module-based MG is provided in this paper. Simulation and preliminary experiment results have been provided to verify the concept and analytical study.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124458442","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: 3

Three-Phase Interleaved LLC Resonant Converter with Integrated Planar Magnetics for Telecom and Server Application 用于电信和服务器的集成平面磁性三相交错LLC谐振变换器

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124392

R. Gadelrab, F. Lee, Qiang Li

{"title":"Three-Phase Interleaved LLC Resonant Converter with Integrated Planar Magnetics for Telecom and Server Application","authors":"R. Gadelrab, F. Lee, Qiang Li","doi":"10.1109/APEC39645.2020.9124392","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124392","url":null,"abstract":"The LLC converter is considered the most efficient topology in server and telecom applications. And, it has been demonstrated that three interleaved LLC converters can achieve further efficiency improvement at the 3KW power level. However, the magnetic components for multiphase LLC are complex, bulky, and difficult to manufacture in a cost-effective manner. In this paper, a high-frequency GaN based three-phase LLC converter is utilized to attempt to address these challenges. With GaN operating at 1 megahertz, all magnetic components, namely three inductors and three transformers, can be integrated in one common structure while all magnetic windings are contained in a compact 4-layer PCB with 3 oz. copper. The proposed structure can be easily and cost effectively manufactured in high quantities. Furthermore, up to a 20db reduction of common-mode noise, from 150KHz up to 30MHz, can be realized if 2 additional PCB layers are employed for proposed CM noise shielding. A 3kW 400V/48V 3-phase prototype is demonstrated, with an expected peak efficiency of 97.4% and a power density of 450W/in3 (28 kW/L).","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124480250","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

Modeling and Reduction of Radiated EMI in Non-isolated Power Converters in Automotive Applications 汽车用非隔离电源变换器中辐射电磁干扰的建模与降低

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124443

Juntao Yao, Shuo Wang, Zheng Luo

{"title":"Modeling and Reduction of Radiated EMI in Non-isolated Power Converters in Automotive Applications","authors":"Juntao Yao, Shuo Wang, Zheng Luo","doi":"10.1109/APEC39645.2020.9124443","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124443","url":null,"abstract":"This paper develops modeling and reduction techniques of the radiated electromagnetic interference (EMI) in non-isolated power converters in automotive applications. In modeling investigations, noise source models and the antenna models are developed to reveal the generation of the common mode (CM) noise and the radiated EMI in the investigated buck-boost power converter. The developed models can predict the radiated EMI with clear physical meanings of the switching noise, the power converter topology, and the PCB parasitics. The influences of the PCB ground layer parasitics on the radiated EMI are first revealed. In noise reduction investigations, several techniques are proposed including 1) PCB layout improvement for reducing the parasitics of the ground layer and 2) circuit topology improvement including the addition of a capacitor across the input and output nodes and improvement of the PCB traces connecting the cross capacitor. Experimental verifications of the radiated modeling and reduction techniques are conducted on a buck-boost power converter in automotive lighting applications.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125909337","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

Cross-Coupled Series-Capacitor Quadruple Step-Down Buck Converter 交叉耦合串联电容四倍降压变换器

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124412

Michael Halamíček, T. McRae, A. Prodic

引用次数: 19

Generalized Bidirectional Multilevel DC-DC Converter 广义双向多电平DC-DC变换器

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9123993

Hao Hu, S. Ghosh, T. Long

引用次数: 0

Small-signal Modeling for Adaptive Closed-loop Control in Two-coil Wireless Power System 双线圈无线电力系统自适应闭环控制的小信号建模

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124112

K. Tang, Huawei Yang, Huaiqi Xie, Yuan Cao

引用次数: 1

A Soft-switching Single-stage Zeta-/SEPIC-based Inverter/Rectifier 一种基于Zeta / sepic的软开关单级逆变/整流器

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124509

M. Khodabandeh, M. Amirabadi

{"title":"A Soft-switching Single-stage Zeta-/SEPIC-based Inverter/Rectifier","authors":"M. Khodabandeh, M. Amirabadi","doi":"10.1109/APEC39645.2020.9124509","DOIUrl":"https://doi.org/10.1109/APEC39645.2020.9124509","url":null,"abstract":"In this paper, two soft-switching single-stage converters are proposed: A Zeta-based inverter and a SEPIC-based rectifier. These two converters are capable of both stepping up and stepping down the voltage in a wide range. Moreover, these converters use a very small film capacitor at the link, instead of electrolytic capacitors that are used in most of the conventional two-stage inverters and rectifiers. Electrolytic capacitors have a shorter lifetime compared to other components of a power electronic converter and their elimination significantly improves the reliability of a converter. This feature is feasible due to having an ac link voltage instead of a dc link. All the semiconductor switches in the proposed converters benefit from zero-current-switching with the help of a very small inductor placed in series with the link capacitor with no auxiliary/additional active switch/diode. Due to the small size of the link capacitor, which is the main energy transferring component of the converters, the dynamic response of both converters is very fast, making these converters suitable for very fast response (VFR) applications. Furthermore, a high-frequency transformer can be employed at the link in case galvanic isolation is needed, thanks to the high-frequency ac voltage of the link. In this paper the principles of the operation of these converters are explained, and their performance is evaluated through simulation and experiments.","PeriodicalId":171455,"journal":{"name":"2020 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124710467","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: 3

A Cascade PI-SMC Method for Brushless Doubly-Fed Induction Machine with Matrix Converter 矩阵变换器无刷双馈感应电机的级联PI-SMC方法

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124209

Xun Zhao, Hui Wang, Hanbing Dan, Zhengzhang Di, Yao Sun, M. Su, M. Rivera, P. Wheeler

引用次数: 3

Closed-loop admittance shaping using impedance-based stability criteria in QFT robust control technique 基于阻抗稳定性准则的QFT鲁棒控制技术闭环导纳整形

2020 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2020-03-01 DOI: 10.1109/APEC39645.2020.9124605

J. M. Del Toro, Carlos de la Viesca, S. Cóbreces

引用次数: 0