2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)最新文献_第2页

Robustness to missing synchrophasor data for power and frequency event detection in electric grids 电网中功率和频率事件检测对缺失同步数据的鲁棒性

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191171

S. Konakalla, R. D. de Callafon

{"title":"Robustness to missing synchrophasor data for power and frequency event detection in electric grids","authors":"S. Konakalla, R. D. de Callafon","doi":"10.1109/ICRERA.2017.8191171","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191171","url":null,"abstract":"Phasor Measurement Unit (PMU) data provides time synchronized measurements of important electrical and power signals in AC power grids. The sheer volume of three phase electric grid PMU data, typically measured at 60 samples second, necessitates the use of automatic event (anomaly) detection for grid monitoring and control. However, this becomes an unwieldy task in cases of PMU data dropouts due to the unobservable state of the grid. Hence, robustness to missing phasor measurements would be critical in order to monitor and control the electric grid in an orderly manner. This paper illustrates an approach for interpolation of PMU data in case of missing data points by optimal filtering of phasor data along with event detection. It is shown that optimal filters can be estimated on the basis of non linear recursive search optimization on real-time PMU data and these filters can be used to generate forecasts in case of missing PMU measurements. The approach is illustrated on phasor data obtained from a microPMU system developed by Power Standards Lab for data ride-through in case of dropouts.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"61 1","pages":"808-812"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77732559","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

Application of median filter in coded wireless references of a predictive wind DFIG turbine 中值滤波在预测型DFIG风力机无线参考编码中的应用

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191121

C. E. Capovilla, A. S. Filho, I. Casella, F. Costa, L. A. Luz-de-Almeida

引用次数: 2

Review of low head turbines system of Nepal for rural electrification 尼泊尔农村电气化低水头涡轮机系统综述

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191182

N. Koirala, Rabin Dhakal, D. Lubitz, S. Bhandari, G. Dev, Y. Dhakal, Uttam Niraula

{"title":"Review of low head turbines system of Nepal for rural electrification","authors":"N. Koirala, Rabin Dhakal, D. Lubitz, S. Bhandari, G. Dev, Y. Dhakal, Uttam Niraula","doi":"10.1109/ICRERA.2017.8191182","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191182","url":null,"abstract":"Small or micro hydro power generation is a promising renewable energy source that has received significant attention because of its capacity to generate green energy ranging from few watts up to hundreds of kilowatts. Small, low head hydropower plants are applicable in remote areas where grid extension is difficult due to geographical terrain. Micro hydro generators do not require the large cost of civil works for conventional hydropower and do not require the cost and environmental impacts of constructing a large dam and diversion structure. Recently there has been increasing interest in low head small hydro turbines by researchers and stakeholders who are working for rural electrification of off-grid communities in Nepal. This study discusses research and practice using various low head water micro hydro generators, including Improved Water Mills, Pico Hydro Generators, Gravitational Water Vortex Power Plants and Archimedes Screws, in Nepal. Major innovations with these systems by researchers working in Nepal are reviewed, and recent steps towards commercialization are discussed. The various technical and economic parameters of those systems are compared and evaluated. This information is essential for researchers and stakeholders to optimally select a suitable turbine according to site and economic conditions.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"56 1","pages":"861-869"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84384336","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

Minimum-power-tracking for PV-PV differential power processing systems PV-PV差分功率处理系统的最小功率跟踪

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191150

Zhaoyang Ye, H. Wen, Guanying Chu, Xingshuo Li

引用次数: 9

Peak point detection of phase-to-phase effective voltages for smart grids: A comparative study 智能电网相-相有效电压峰值点检测的比较研究

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191234

A. Çolak, Y. Shibata, F. Kurokawa, M. Yesilbudak, S. Ermi̇ş, R. Bayindir

引用次数: 3

Sensorless static model design of digital DC-DC converter for various input voltage conditions 各种输入电压条件下数字DC-DC变换器的无传感器静态模型设计

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191135

F. Kurokawa, Masashi Taguchi, H. Maruta

引用次数: 2

Optimal microgrids placement in electric distribution systems using complex network framework 基于复杂网络框架的配电系统微电网优化配置

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191215

Mahmoud Saleh, Yusef Esa, Nwabueze Onuorah, A. Mohamed

引用次数: 30

Design and implementation of a multi winding high frequency transformer for MPSST application MPSST多绕组高频变压器的设计与实现

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191108

M. Rashidi, Abedalsalam Bani-Ahmed, Robabeh Nasiri, A. Mazaheri, A. Nasiri

{"title":"Design and implementation of a multi winding high frequency transformer for MPSST application","authors":"M. Rashidi, Abedalsalam Bani-Ahmed, Robabeh Nasiri, A. Mazaheri, A. Nasiri","doi":"10.1109/ICRERA.2017.8191108","DOIUrl":"https://doi.org/10.1109/ICRERA.2017.8191108","url":null,"abstract":"Development of the new generation of high power and high frequency power electronic switches along with the need for compact controllable converters for utilization of distributed energy resources in the grid, have led to significant developments in the area of solid state transformers in the last years. The design process of a high frequency transformer as the main element in the solid state transformer is illustrated in this article. A multi winding transformer for multiport SST application is designed, studied and built in this research. In a MPSST several windings feed the core. As the result, coupling coefficient between each pair of windings, become an important factor which is studied in this study. Since the transformer is designed for high frequency applications, the power loss in the wire and core of the transformer increases as the result of higher skin effect and eddy current loss in high frequency. Three important factors in the design of HF transformer for MPSST are discussed in the paper. First, four different possible core materials are compared based on their flux density, frequency range, loss and price. Then the cable selection is illustrated and finally, different winding placement and distribution on the same core are suggested and the inductance and coupling coefficient matrices are calculated using ANSYS Maxwell 3D simulation. The transformer is built in the lab and the inductance values matches the expected values from the simulation.","PeriodicalId":6535,"journal":{"name":"2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA)","volume":"49 1","pages":"491-494"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88074252","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: 17

72V DC bus output full-bridge converter in solar power system for micro EV 微型电动汽车太阳能发电系统中72V直流母线输出全桥变换器

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191120

S. Hattori, K. Kajiwara, N. Matsui, F. Kurokawa

引用次数: 4

Finite element method to construct a lumped parameter ladder network of the transformer winding 用有限元法构造变压器绕组的集总参数阶梯网络

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2017-11-01 DOI: 10.1109/ICRERA.2017.8191224

M. -. Chaouche, H. Houassine, S. Moulahoum, I. Colak

引用次数: 9