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Energy

Electric power / smart grid

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Displaying 151 - 175 of 288

Advanced Electrical Power System Sensors Workshop Report

November 13, 2017
Author(s)
Allen R. Goldstein
The objective of the Advanced Electrical Power Sensors Workshop was to provide input into planning processes being undertaken by the National Institute of Standards and Technology (NIST), Department of Energy (DOE), and the Grid Modernization Laboratory

Time Distribution Alternatives for the Smart Grid Workshop Report

November 13, 2017
Author(s)
Allen R. Goldstein
The National Institute of Standards and Technology (NIST) hosted the Time Distribution Alternatives for the Smart Grid Workshop at its Gaithersburg, Maryland Campus on March 21, 2017. The event, co-hosted by the U.S. Department of Energy, brought together

Interoperability Test for IEC 61850-9-2 Standard-based Merging Units

October 30, 2017
Author(s)
Yuyin Song, Gerald J. FitzPatrick, Kang B. Lee, Yixin Zhang
Merging units (MUs) sample alternating current (AC) in one or multiple phases and convert these analog voltage and current signals to digital values and transmit the sampled values (SVs) to protection relays (PRs) and bay controllers (BCs) through either

Wireless Infrastructure M2M Network For Distributed Power Grid Monitoring

October 1, 2017
Author(s)
Hamid Gharavi
With the massive integration of distributed renewable energy sources (RESs) into the power system, the demand for timely and reliable network quality monitoring, control, and fault analysis is rapidly growing. Following the successful deployment of Phasor

Timestamp Temporal Logic (TTL) for Time Testing of Cyber-Physical Systems

September 27, 2017
Author(s)
Mohammadreza Mehrabian, Mohammad Khayatian, Aviral Shrivastava, John Eidson, Patricia Derler, Hugo A. Andrade, Ya-Shian Li-Baboud, Edward Griffor, Marc A. Weiss, Kevin Stanton
In order to test the performance and verify the correctness of Cyber-Physical Systems (CPS), the timing constraints on the system behavior must be met. Signal Temporal Logic (STL) can efficiently and succinctly capture the timing constraints on a given

Synchrophasor Sensor Networks for Grid Communication and Protection

July 15, 2017
Author(s)
Hamid Gharavi
This paper focuses primarily on leveraging synchronized current/voltage amplitudes and phase angles measurements to foster new categories of applications, such as improving the effectiveness of grid protection and minimizing outage duration for distributed

3-Port Frequency Selective Absorptive Limiter

May 1, 2017
Author(s)
A Hueltes, Eduard Rocas, Carlos Collado, Jordi Mateu, D Garcia-Pastor, James Booth, Rafael P. Robles
This paper proposes a novel 3-port absorptive limiter for frequency selective circuits based on a similar configuration than a conventional 90º hybrid coupler. This circuit uses the switching features existing in common diode devices to changes between the

Dynamic Appliances Scheduling in Collaborative MicroGrids System

May 1, 2017
Author(s)
Hamid Gharavi, Hasnae Bilil
Abstract—In this paper a new approach which is based on a collaborative system of MicroGrids (MG’s), is proposed to enable household appliance scheduling. To achieve this, appliances are categorized into flexible and non-flexible Deferrable Loads (DL’s)

Synchrophasor Data Quality Attributes and a Methodology for Examining Data Quality Impacts upon Synchrophasor Applications

March 14, 2017
Author(s)
Dhananjay Anand, Allen R. Goldstein, Alison Silverstein, Laurie Miller, Francis Tuffner, Yuri Makarov
Data from synchrophasor devices like phasor measurement units (PMU) is increasingly being used to enhance and improve power grid operations, analysis, and planning applications. However, PMU data often arrive at the application with a variety of data

Space-Time Approach for Disturbance Detection and Classification

March 9, 2017
Author(s)
Hamid Gharavi
A major challenge facing future grid systems is to identify the source of abnormal behaviors caused by faults or voltage instability. In this paper Phasor Measurement Units (PMUs) have been considered for detecting disturbances and degradation in the grid

Toward Integrating Distributed Energy Resources and Storage Devices in the Smart Grid

February 1, 2017
Author(s)
Guobin Xu, Wei Yu, David W. Griffith, Nada T. Golmie, Paul Moulema
The smart grid, as one of typical applications supported by Internet of Things, denoted as a re-engineering and a modernization of the traditional power grid, aims to provide reliable, secure, and efficient energy transmission and distribution to consumers
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