检索结果-内蒙古大学图书馆

3rd International Conference on Energy Transition in the Mediterranean Area, SyNERGY MED 2024

作者： Sun, Biao Wu, Yuru Yu, Wenpeng Thotakura, Naga Lakshmi Liu, Qian Liu, Yilu Liu, Yu Wang, Wen Gao, Shengyou The University of Tennessee Knoxville Knoxville United States Oak Ridge National Laboratory Knoxville United States Tsinghua University Beijing China

ISBN: (纸本)9798350375923

This paper presents an in-depth review of the evolution of distribution-level monitoring sensors used in the fnet/grideye system. It details the technological advancements and the impact of three generations of sensors on grid monitoring. It highlights significant improvements in precision, sampling rates, and real-time data processing, contributing to enhanced grid stability and reliability. © 2024 IEEE.

关键词： CIDERs D-PMUs fnet/grideye Grid Stability and Reliability WAMS

来源：评论

学校读者我要写书评

暂无评论

Impact of Simultaneous Activities on Frequency Fluctuations:Comprehensive Analyses Based on Real Measurement Data from the fnet/grideye

引用

CSEE Journal of Power and Energy Systems 2021年第2期7卷 421-431页

作者： Shengyuan Liu Shutang You Chujie Zeng Yinfeng Zhao Wenxuan Yao Yilu Liu Zhenzhi Lin Department of Electrical Engineering and Computer Science University of TennesseeKnoxvilleTN 37996USA Department of Electrical Engineering and Computer Science University of TennesseeKnoxvilleTN37996USA College of Electrical Engineering Zhejiang UniversityHangzhou 310027China

Simultaneous human activities,such as the Super Bowl game,would cause certain impacts on frequency fluctuations in power *** the help of fnet/grideye measurements,this paper aims to give comprehensive analyses on the frequency fluctuations during Super Bowl LIV held on Feb.2,2020,so as to better understand several phenomena caused by simultaneous activities which will help system operations and ***,recent developments of the fnet/grideye are briefly ***,the frequency fluctuations of the Eastern Interconnection(El),western electricity coordinating council(WECC),and electric reliability council of Texas(ERCOT)power systems during Super Bowl LIV are ***,frequency fluctuations of Super Bowl Sunday and ordinary Sundays in 2020 are ***,the differences of frequency fluctuations among different years during the Super Bowl and their change trends are also ***,several possible explanations,including the simultaneity of electricity consumption at the beginning of commercial breaks and the halftime show,the increasing usage of the Internet,and the increasing size of TV screens,are illustrated in detail in this paper.

关键词： Frequency fluctuation fnet/grideye simultaneous activities Super Bowl synchrophasor measurement

来源：评论

学校读者我要写书评

暂无评论

Non-Gaussianity in Frequency Distribution: fnet/grideye's Observation of Worldwide Grids

Non-Gaussianity in Frequency Distribution: FNET/GridEye's Ob...

引用

International Conference on Smart Grid Synchronized Measurements and Analytics (SGSMA)

作者： Zeng, Chujie Qiu, Wei Wang, Weikang Sun, Kaiqi Chen, Chang Liu, Yilu Univ Tennessee Dept Elect Engn & Comp Sci Knoxville TN 37996 USA Oak Ridge Natl Lab Oak Ridge TN USA

ISBN: (纸本)9781665498234

In the power grid, the frequency fundamentally indicates the health of the grid and shall stay within strict bounds to ensure reliable operation. Fluctuations arising from renewable energy sources pose an unprecedented challenge to the stability and quality of power grids. However, little research has been conducted regarding the difference between worldwide grids in terms of frequency. fnet/grideye, as a wide-area monitoring system that collects frequency measurements from worldwide power grids, provides opportunities to study the characteristics of the worldwide grids. In this paper, 32 power grids, spreading over the world, are statistically analyzed and compared using 7-Month data. The presented cases reveal that the frequency distribution in most grids has strong non-Gaussian characteristics. Moreover, three categories of non-Gaussianity are proposed: multi-peak, skewed plateau, and heavy tail. Furthermore, these findings strongly suggest against assuming frequency distributions Gaussian prior to detailed investigation. The result should benefit future practice and research.

关键词： Power Grid Frequency fnet/grideye Synchrophasor PMU WAMS

来源：评论

学校读者我要写书评

暂无评论

Frequency Observations and Statistic Analysis of Worldwide Main Power Grids Using fnet/grideye

Frequency Observations and Statistic Analysis of Worldwide M...

引用

IEEE-Power-and-Energy-Society General Meeting (PESGM)

作者： Deng, Xianda Li, Hongyu Yu, Wenpeng Wang Weikang Liu, Yilu Univ Tennessee Dept Elect Engn & Comp Sci Knoxville TN 37996 USA Oak Ridge Natl Lab Oak Ridge TN USA

ISBN: (纸本)9781728119816

With the increasing renewable energy sources, concerns about how renewable energy sources impact frequency have risen. There are few reports regarding power frequency status in worldwide main power grids and what are differences of frequency status between power grids in mainland and island. fnet/grideye, a wide-area measurement system collecting frequency and phase angle data at the distribution level, provides an opportunity to observe and study the power frequency in different power grids over the world. In this paper, 13 different power grids, spreading at different mainland and islands over the world, are observed and compared. A more detail statistical analysis was conducted for typical power grids in three different places, e.g., U.S Eastern Interconnection (EI), Egypt, and Japan. The probability functions of frequency based on the measured data are calculated. The distributions of frequency in different power grids fall into two categories, e. g., single-peak distribution and multi-peak distribution. Furthermore, a meaningful insight that the single-peak distributions of the frequency almost follow the normal distribution is found. The frequency observations and statistic analysis of worldwide main power grids using fnet/grideye could help the power system operators understand the frequency statistical characteristic more deeply.

关键词： Worldwide power grids frequency observations Statistic analysis PMU application big data fnet/grideye

来源：评论

学校读者我要写书评

暂无评论

fnet/grideye for Future High Renewable Power Grids - Applications Overview

FNET/GridEye for Future High Renewable Power Grids - Applica...

引用

IEEE-PES Transmission and Distribution Conference and Exhibition - Latin America (T&D-LA)

作者： You, Shutang Zhao, Jiecheng Yao, Wenxuan Liu, Yong Cui, Yi Wu, Ling Guo, Jiahui Liu, Yilu Univ Tennessee Dept EECS Knoxville TN 37996 USA Oak Ridge Natl Lab POB 2009 Oak Ridge TN 37831 USA

ISBN: (纸本)9781538658444

Integration of renewable generation sets high requirements for real-time situational awareness of power systems. fnet/grideye, a synchrophasor measurement network for wide-area power system monitoring has been assisting real-time situational awareness and helping improve reliability in many power grids for 14 years. To aid operators confronting challenges from growing renewables, fnet/grideye continues increasing its measurement accuracy and enhancing its functionalities. This paper provides an overview on the most-recent fnet/grideye application improvements that help power grid operation with high renewable penetration. The real-time applications presented in this paper include event location, oscillation monitoring, inertia estimation, and islanding detection.

关键词： fnet/grideye synchrophasor measurement renewable generation power grid applications

来源：评论

学校读者我要写书评

暂无评论

Frequency Observations and Statistic Analysis of Worldwide Main Power Grids Using fnet/grideye

Frequency Observations and Statistic Analysis of Worldwide M...

引用

IEEE Power and Energy Society General Meeting

作者： Xianda Deng Hongyu Li Wenpeng Yu Wang Weikang Yilu Liu The University of Tennessee Knoxville USA Oak Ridge National Laboratory Oak Ridge USA

With the increasing renewable energy sources, concerns about how renewable energy sources impact frequency have risen. There are few reports regarding power frequency status in worldwide main power grids and what are differences of frequency status between power grids in mainland and island. fnet/grideye, a wide-area measurement system collecting frequency and phase angle data at the distribution level, provides an opportunity to observe and study the power frequency in different power grids over the world. In this paper, 13 different power grids, spreading at different mainland and islands over the world, are observed and compared. A more detail statistical analysis was conducted for typical power grids in three different places, e.g., U.S Eastern Interconnection (EI), Egypt, and Japan. The probability functions of frequency based on the measured data are calculated. The distributions of frequency in different power grids fall into two categories, e.g., single-peak distribution and multi-peak distribution. Furthermore, a meaningful insight that the single-peak distributions of the frequency almost follow the normal distribution is found. The frequency observations and statistic analysis of worldwide main power grids using fnet/grideye could help the power system operators understand the frequency statistical characteristic more deeply.

关键词： Worldwide power grids Frequency observations Statistic analysis PMU application Big data fnet/grideye

来源：评论

学校读者我要写书评

暂无评论

基于大数据技术的北美fnet/grideye系统设计与实现

引用

电力系统自动化 2017年第10期41卷 112-116页

作者：桂勋 LIU Yilu 郑永康刘明忠电子科技大学能源科学与工程学院四川省成都市610031 田纳西大学电气工程与计算机科学系国网四川省电力公司电力科学研究院四川省成都市610072

随着智能电网信息化技术的快速发展,已稳定运行多年的fnet/grideye软件系统已经无法适应未来的发展。针对这种情况并结合最新的电力实时大数据(以同步向量数据为主)开源项目OpenPDC/OpenHistorian设计了基于分布式架构的新一代系统。系... 详细信息

随着智能电网信息化技术的快速发展,已稳定运行多年的fnet/grideye软件系统已经无法适应未来的发展。针对这种情况并结合最新的电力实时大数据(以同步向量数据为主)开源项目OpenPDC/OpenHistorian设计了基于分布式架构的新一代系统。系统由前端集群、后端集群和系统调用组件三部分组成,具有系统扩展性强和可靠性高的特点。前端集群中的每台OpenPDC服务器负责接入一定数量的同步向量采集设备,并在其中运行不同的电网事件触发器插件。当触发器探测到电网事件后会以组播方式通知位于后端集群中的系统调度组件,此组件负责从OpenHistorian中加载窗口数据后,运行对应的分析应用程序。针对已投运系统的数据吞吐量测试、两年多的稳定运行和不断添加前端设备和后端应用证明了新系统设计的先进性。

关键词： fnet/grideye OpenPDC OpenHistorian 分布式软件体系结构触发器调度组件实时大数据

来源：评论

学校读者我要写书评

暂无评论

Dissipating Potential-Based Method for Forced Oscillation Location Estimation

Dissipating Potential-Based Method for Forced Oscillation Lo...

引用

International Conference on Smart Grid Synchronized Measurements and Analytics (SGSMA)

作者： Yu, Wenpeng Liu, Yilu Zhu, Lin Farantatos, Evangelos Univ Tennessee Dept EECS Knoxville TN 37996 USA Univ Tennessee Knoxville TN USA Oak Ridge Natl Lab Oak Ridge TN USA Elect Power Res Inst Washington DC USA

ISBN: (纸本)9798350312874;9798350312881

Forced oscillations may be excited by periodical disturbance caused by malfunctions in exciters, power system stabilizers, governors and so on. Forced oscillations cannot be fully mitigated until the source is identified and removed. Therefore, fast and accurate source location is of importance for forced oscillation mitigation in interconnected power grids. This paper proposes a dissipating potential-based method to locate the source of forced oscillation. This method creates virtual transmission lines according to the monitored buses' location, estimate the virtual dissipating energy flow with partial system observation. Then dissipating potential is proposed and calculated to locate the exciting source. The developed method is tested with the IEEE test case library of power system sustained oscillations, which are simulated forced oscillation events in a reduced 179-bus WECC model with partial observation of the system. Also, the tool is tested using an actual forced oscillation event in EI. The test results demonstrate the effectiveness of the tool in forced oscillation source location.

关键词： Forced oscillation source location synchrophasor dissipating potential dissipating energy flow fnet/grideye

来源：评论

学校读者我要写书评

暂无评论

Practical Event Location Estimation Algorithm for Power Transmission System Based on Triangulation and Oscillation Intensity

引用

IEEE TRANSACTIONS ON POWER DELIVERY 2022年第6期37卷 5190-5202页

作者： Liu, Shengyuan Sun, Kaiqi Zeng, Chujie You, Shutang Li, Hongyu Yu, Wenpeng Deng, Xianda Lin, Zhenzhi Liu, Yilu Univ Tennessee Dept Elect Engn & Comp Sci Knoxville TN 37996 USA Zhejiang Univ Sch Elect Engn Hangzhou 310027 Peoples R China Shandong Univ Sch Elect Engn Jinan 250061 Peoples R China Oak Ridge Natl Lab Oak Ridge TN 37830 USA

Event location in power systems is quite essential information for system operators to enhance control-room situational awareness capability. Therefore, it is of great importance to develop an event location estimation algorithm for transmission systems with high accuracy. With the development of wide-area measurement system (WAMS) such as fnet/grideye, and the synchrophasor measurement devices (SMDs) such as frequency disturbance recorders (FDRs), the synchronous measurement data including frequency, voltage amplitude and phase angle can be collected and used for event location estimation. First, the phase angle and rate of change of frequency (RoCoF) trajectories are respectively used for determining two sets of wave arrival time associated with each FDR. Then, a convolutional neural network (CNN) is utilized to determine the wave arrival order to select the more suitable set of wave arrival times for a given case and to perform corresponding modifications. Next, the oscillation intensity associated with each FDR is determined based on phase angle trajectories in the center of inertia (COI) coordinate system. Finally, the multiple criteria for event location estimation are represented. Case studies and comparisons between the proposed and previous algorithms using actual and confirmed cases in U.S. power systems are performed to demonstrate the effectiveness and improvement of the proposed algorithm in practical applications.

关键词： Event location estimation wave arrival time convolutional neural network (CNN) oscillation intensity triangulation synchrophasor measurement fnet/grideye frequency disturbance recorder (FDR)

来源：评论

学校读者我要写书评

暂无评论

Design and Implementation of Real-Time Off-Grid Detection Tool Based on fnet/grideye

Design and Implementation of Real-Time Off-Grid Detection To...

引用

IEEE PES General Meeting

作者： Guo, Jiahui Zhang, Ye Liu, Yilu Young, Marcus Irminger, Philip Dimitrovski, Aleksandar Willging, Patrick Univ Tennessee Knoxville TN 37996 USA

ISBN: (纸本)9781479964154

Real-time situational awareness tools are of critical importance to power system operators, especially during emergencies. The availability of electric power has become a linchpin of most post disaster response efforts as it is the primary dependency for public and private sector services, as well as individuals. Knowledge of the scope and extent of facilities impacted, as well as the duration of their dependence on backup power, enables emergency response officials to plan for contingencies and provide better overall response. Based on real-time data acquired by Frequency Disturbance Recorders (FDRs) deployed in the North American power grid, a real-time detection method is proposed. This method monitors critical electrical loads and detects the transition of these loads from an on-grid state, where the loads are fed by the power grid to an off-grid state, where the loads are fed by an Uninterrupted Power Supply (UPS) or a local backup generation system. The details of the proposed detection algorithm are presented, and some case studies and off-grid detection scenarios are also provided to verify the effectiveness and robustness. Meanwhile, how to implement the detection tool in real-time environment and its achievements in detecting off-grid situations are discussed in this paper.

关键词： Frequency disturbance recorder Frequency deviation fnet/grideye Off-grid detection

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：