U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Gerald J. FitzPatrick (Assoc)

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 1 - 25 of 39

A Methodology for Modeling Interoperability for Smart Sensors in Smart Grids

January 1, 2022
Author(s)
Edward Griffor, Kang B. Lee, Gerald J. FitzPatrick, Eugene Song
Smart sensors in smart grids provide real-time data and status of bidirectional flows of energy for monitoring, protection, and control of grid operations to improve reliability and resilience. Smart sensor interoperability is major challenges for smart

A Methodology for Modeling Interoperability for Smart Sensors in Smart Grids

January 1, 2022
Author(s)
Edward Griffor, Eugene Song, Kang B. Lee, Gerald J. FitzPatrick
Smart sensors in smart grids (SGs) can provide real-time data and status of modernized, bidirectional flows of energy, electrical power grids for monitoring, protection, and control of grid operations to improve reliability and resilience. Smart sensor

Interoperability Analysis Tool for IEC 61850-9-2 Standard-based Merging Units

February 18, 2019
Author(s)
Yuyin Song, Gerald J. FitzPatrick, Kang B. Lee, Avi M. Gopstein
Interoperability test and plugfest provide a congenial environment to test and assure interoperability of power grid devices helping to achieve equipment plug and play. However, interoperability analysis and evaluation are very time-consuming and error

NIST Smart Grid Interoperability Test Tools

February 8, 2019
Author(s)
Dhananjay Anand, Kevin G. Brady, Yuyin Song, Cuong T. Nguyen, Kang B. Lee, Gerald J. FitzPatrick, Allen R. Goldstein, YaShian Li-Baboud
The National Institute of Standards and Technology (NIST), participated in the Universal Communication Architecture International User Group (UCAIug) Interoperability (IOP) Test Event on October 14-19, 2017 in New Orleans, Louisiana. The objective of the

Measurement Tools for Substation Equipment: Testing the Interoperability of protocols for Time Transfer and Communication

October 3, 2018
Author(s)
Dhananjay Anand, YaShian Li-Baboud, Kevin G. Brady, Yuyin Song, Kang Lee, Cuong Nguyen, Gerald FitzPatrick, Allen R. Goldstein
A test harness was designed and developed at the National Institute of Standards and Technology (NIST) to study the interoperability of the Precision Timing Protocol-Power Profile (PTP) and other communication standards for substation automation

Interoperability Testbed for Smart Sensors in Smart Grids

July 9, 2018
Author(s)
Yuyin Song, Gerald J. FitzPatrick, Kang B. Lee, Avi M. Gopstein, Paul A. Boynton
Interoperability testing provides a means for achieving and assuring smart sensor data interoperability. Interoperability testbeds can provide the technical foundations for standards development for smart sensors in smart grids, including standards for

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

Smart Sensors and Standard-based Interoperability in Smart Grids

July 20, 2017
Author(s)
Yuyin Song, Gerald J. FitzPatrick, Kang B. Lee
Smart grids (SGs) are electrical power grids that apply information, advanced networking, and real-time monitoring and control technologies to lower costs, save energy, and improve security, interoperability, and reliability. Smart sensors (SSs) can

NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 3.0

October 1, 2014
Author(s)
Chris Greer, David A. Wollman, Dean Prochaska, Paul A. Boynton, Jeffrey A. Mazer, Cuong Nguyen, Gerald FitzPatrick, Thomas L. Nelson, Galen H. Koepke, Allen R. Hefner Jr., Victoria Yan Pillitteri, Tanya L. Brewer, Nada T. Golmie, David H. Su, Allan C. Eustis, David Holmberg, Steven T. Bushby
Section 1305 of the Energy Independence and Security Act (EISA) of 2007 (Pub. L. 110-140) directs NIST ‘‘to coordinate the development of a framework that includes protocols and model standards for information management to achieve interoperability of

NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 2.0

February 16, 2012
Author(s)
George W. Arnold, Gerald FitzPatrick, David A. Wollman, Thomas L. Nelson, Paul A. Boynton, Galen H. Koepke, Allen R. Hefner Jr., Cuong Nguyen, Jeffrey A. Mazer, Dean Prochaska, Marianne M. Swanson, Tanya L. Brewer, Victoria Yan Pillitteri, David H. Su, Nada T. Golmie, Eric D. Simmon, Allan C. Eustis, David Holmberg, Steven T. Bushby, Michael D. Janezic, Ajitkumar Jillavenkatesa
The Energy Independence and Security Act (EISA) of 2007 requires that NIST develop a framework of standards for the Smart Grid. This document is the second release of the framework first published in January, 2010. It covers the activities and outputs of

NIST COORDINATION OF SMART GRID INTEROPERABILITY STANDARDS

August 9, 2010
Author(s)
David A. Wollman, Gerald FitzPatrick, Paul A. Boynton, Thomas L. Nelson
The National Institute of Standards and Technology has efforts underway to accelerate the development of interoperability standards to support the future modernized "Smart Grid" electric grid or energy delivery network characterized by a two-way flow of

NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 1.0

January 10, 2010
Author(s)
George W. Arnold, David A. Wollman, Gerald FitzPatrick, Dean Prochaska, David Holmberg, David H. Su, Allen R. Hefner Jr., Nada T. Golmie, Tanya L. Brewer, Mark Bello, Paul A. Boynton
Under the Energy Independence and Security Act (EISA) of 2007, the National Institute of Standards and Technology (NIST) is assigned "primary responsibility to coordinate development of a framework that includes protocols and model standards for

Dissipation Factors of Fused-Silica Capacitors in the Audio Frequency Range

April 1, 2007
Author(s)
Yicheng Wang, Andrew D. Koffman, Gerald FitzPatrick
We describe dissipation factor measurements of 10 pF fused-silica capacitance standards from 50 Hz to 20 kHz, using a toroidal cross capacitor and a 10 pF nitrogen-filled capacitor as the references. The relative combined standard uncertainties are 0.56x10

Electron Drift in C4F6 and C4F6/Ar Mixtures

September 1, 2002
Author(s)
Amanda N. Goyettes, Yicheng Wang, Gerald FitzPatrick
We report measurements of electron drift velocities as a function of density-reduced electric field, w(E/N), for hexafluorobutadiene (C4F6) and mixtures of C4F6 with Ar. The w(E/N) for the mixtures of C4F6 with Ar can aid Boltzmann transport equation

Users' Guide to the NIST-High-Voltage Capacitance Ratio Bridge

March 28, 2001
Author(s)
Eric D. Simmon, Gerald FitzPatrick, O. Petersons
This TechNote has been written as a guide to the operation of and applications for the NIST Capacitor Ratio Bridge (CRB). The theory, design, and operating principles of the CRB, sources of measurement error, and principal applications are discussed in

Calibration of Dissipation Factor Standards

April 1, 1999
Author(s)
Eric D. Simmon, Gerald FitzPatrick, O. Petersons
Working standards for dissipation factor (D) standards obtained by connecting a shielded three-terminal capacitor in series with a shielded precision resistor have been developed for calibration purposes. Precision conductance boxes have been built for use

Extension of Voltage Range for Power and Energy Calibrations

April 1, 1999
Author(s)
O. Petersons, Thomas L. Nelson, Nile M. Oldham, Gerald FitzPatrick
A special purpose ac voltage divider system with ratios of 600, 480, 360, 277, and 240 V to 120 V has been developed to extend the range of primary electric power calibrations from 120-600 V at 50 and 60 Hz. The developmental goal has been to realize ac

Calibration of Dissipation Factor Standards

July 1, 1998
Author(s)
Eric D. Simmon, Gerald FitzPatrick, O. Petersons
Dissipation factor (D) standards obtained by connecting a shielded three-terminal capacitor in series with a shielded resistor have been developed for calibration purposes. An analysis of these DF Standards, including precautions in their construction and

Extension of Voltage Range for Power and Energy Calibrations

July 1, 1998
Author(s)
O. Petersons, Thomas L. Nelson, Nile M. Oldham, Gerald FitzPatrick
A special purpose ac voltage divider system having voltage ratios of 600 V, 480 V, 360 V, and 240 V to 120 V has been developed to extend the voltage range of primary electric power calibrations from 120 volts to 600 volts at power frequencies of 50 and 60

Evaluation of High-Voltage Impulse Waveforms Using Model-Based Deconvolution

June 1, 1998
Author(s)
Gerald FitzPatrick, Eric D. Simmon, J. Lagnese
Accurate measurement of high voltage (hv) impulse waveforms is of critical importance in the testing of hv apparatus and for fundamental insulation studies. Quantifying the measurement system errors can be performed by following procedures recommended by