2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)最新文献_第6页

Providing dc fault ride-through capability to H-bridge MMC-based HVDC networks 为基于H-bridge mmc的HVDC网络提供直流故障穿越能力

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167983

E. Kontos, R. T. Pinto, P. Bauer

{"title":"Providing dc fault ride-through capability to H-bridge MMC-based HVDC networks","authors":"E. Kontos, R. T. Pinto, P. Bauer","doi":"10.1109/ICPE.2015.7167983","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167983","url":null,"abstract":"This paper proposes a framework to achieve dc fault ride-through capability in multi-terminal dc networks (MTdc), when H-bridge multilevel modular converters (MMC) are used. The studied network consists of four voltage-source converters (VSC) for high voltage direct current (HVdc) transmission. Two of these VSC converters connect two offshore wind farms (OWF) to the main HVdc link between two asynchronous onshore grids, in a radial configuration. In case of a dc fault, H-bridge MMCs are able to block the fast developing currents and drive them to zero, allowing for fast mechanical disconnectors to isolate the faulty cable segment and reconfigure the grid layout. In this paper, the effect of the dc fault location to the grid behavior is analysed both at the fault isolation phase, as well as at the grid restoration phase. Moreover, the worst-case dc fault scenario for the studied network is identified. Finally, the total fault recovery time of the MTdc network is estimated. The study showed that H-bridge MMCs are unable to isolate the faulty part of the network without de-energizing the MTdc grid. However, the proposed framework allows for fast grid restoration within 3.6 s without the need for expensive dc breakers.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131603536","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: 23

Interconnection of two neighboring autonomous microgrids based on small signal analysis 基于小信号分析的相邻自治微电网互联

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167789

E. Pashajavid, Farhad Shahnia, A. Ghosh

{"title":"Interconnection of two neighboring autonomous microgrids based on small signal analysis","authors":"E. Pashajavid, Farhad Shahnia, A. Ghosh","doi":"10.1109/ICPE.2015.7167789","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7167789","url":null,"abstract":"Load-shedding is a mechanism to prevent overloading of an islanded microgrid (MG). To minimize load-shedding, extra support can be provided by interconnecting the overloaded MG to another islanded neighboring MG to support each other. For this, extra generation capacity needs to be available in the distributed energy resources of the neighboring MG. This paper proposes a decision making criterion for interconnection of two neighboring islanded MGs based on small signal stability analysis. The closed-loop control system of an MG is expressed in statespace domain and used for the stability analysis of the individual MGs as well as the system of coupled MGs. The results of this analysis are applied as a stability criterion to allow interconnection of two islanded MGs. Additionally, if it is revealed that interconnection of MGs will cause instability, the analysis yields the proper range for the droop control coefficients which need to be updated in the DERs, before they MGs are interconnected. MATLAB-based simulation studies are provided to evaluate the developed small signal stability analysis.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"233 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132624411","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: 24

Capacitor volume evaluation based on ripple current in modular multilevel converter 模块化多电平变换器中基于纹波电流的电容体积评估

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167876

Toshiki Nakanishi, J. Itoh

引用次数: 11

Soft start and synchronous switching of permanent magnet synchronous machines without damping windings 无阻尼绕组永磁同步电机的软启动和同步开关

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168070

Ronggang Ni, Gaolin Wang, H. Zhan, Guoqiang Zhang, Dianguo Xu

引用次数: 0

A downhole multi-parameter monitoring system for electrical submersible pump 电潜泵井下多参数监测系统

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168111

Miaoxin Jin, Q. Gao, Pengmiao Zhang, Xiaolu Li, Gang Li, Dianguo Xu

引用次数: 3

Design of output filter in LLC resonant converters for ripple current reduction in battery charging applications 电池充电中用于降低纹波电流的LLC谐振变换器输出滤波器的设计

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168060

Sang-Min Park, Dong-Hee Kim, Dongmyoung Joo, Min-Jung Kim, Byoung-Kuk Lee

引用次数: 10

1MHz variable sampling deadbeat control for PM motor using FPGA 基于FPGA的永磁电机1MHz可变采样无差拍控制

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167769

Asahi Kitada, Kota Miyata, Kota Tsuchiya, Hiroki Sato, T. Yokoyama

引用次数: 6

Modeling and analysis for output impedance of buck converters 降压变换器输出阻抗的建模与分析

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7168127

Xiaolong Yue, Shuhao Yang, Yin Chen, F. Zhuo, Y. Pei

{"title":"Modeling and analysis for output impedance of buck converters","authors":"Xiaolong Yue, Shuhao Yang, Yin Chen, F. Zhuo, Y. Pei","doi":"10.1109/ICPE.2015.7168127","DOIUrl":"https://doi.org/10.1109/ICPE.2015.7168127","url":null,"abstract":"In distributed power systems, the impedance model of power modules is very important because of the close relationship between impedance and stability. For buck converters with a sinusoidal current perturbation at the output terminal, the output voltage will contain multiple components in frequency domain. The output impedance characteristics of power converters are actually single input multiple output (SIMO). However, traditional models and modeling methods only take the perturbation frequency into account and ignore the other components. The obtained impedance models, with single input single output (SISO) forms, are actually simplifications of the real impedance. In this paper, the output impedance of buck converters with SIMO characteristics is modeled by a matrix based method. Detailed analysis shows that it is reasonable to only consider the perturbation frequency itself in low frequency regions, but in high frequency regions, especially those around the switching frequency and its multiples, the corresponding low frequency component is also very significant and should be taken into account. Simulation and experimental results validate the accuracy and effectiveness of the proposed modeling method and conclusions.","PeriodicalId":160988,"journal":{"name":"2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115587288","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 new discontinuous PWM method of three-level inverter for neutral-point voltage ripple reduction 一种新的三电平逆变器中性点电压纹波抑制不连续PWM方法

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167835

Seungjong Yoo, June-Seok Lee, Kyo-Beum Lee

引用次数: 3

A compact and high efficient LED driver compatible with electronic ballast by synchronous voltage doubler rectifier 采用同步倍压整流器与电子镇流器兼容的紧凑高效LED驱动器

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI: 10.1109/ICPE.2015.7167916

Duy T. Nguyen, Eun S. Lee, M. R. Sonapreetha, C. Rim

引用次数: 0