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Search Publications

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Displaying 1 - 25 of 155

Stochastic Method for Generating Residential Household Energy Models of Varying Income Level and Climate Zone for Testing Energy Fairness

September 26, 2023
Author(s)
Hannah Covington, Brian Woo-Shem, Chenli Wang, Thomas Roth, Cuong Nguyen, Hohyun Lee
Interest in residential energy management necessitates fairness testing of energy technology and policy developments. Considering income level is particularly important because increased utility bills put low-income households at higher risk of economic

Impact of Dynamic Prices on Distribution Grid Power Quality

August 16, 2023
Author(s)
David Holmberg, Thomas Roth, Farhad Omar
Dynamic price signals may provide a way to support integration of customer distributed energy resources (DER) into the electric grid and to help manage DER flexibility to support distribution system and bulk grid needs. Use of DER flexibility includes peak

Non-nulling Protocols for Fast, Accurate, 3-D Velocity Measurements in Stacks

July 28, 2023
Author(s)
Iosif Isaakovich Shinder, Aaron Johnson, James Filla, Vladimir B. Khromchenko, Michael R. Moldover, Joey Boyd, John D. Wright, John R. Stoup
We present protocols for making fast, accurate, 3-D velocity measurements in the stacks of coal-fired power plants. The measurements are traceable to internationally-recognized standards; therefore, they provide a rigorous basis for measuring and/or

Comparing Economic Benefits of HVAC Control Strategies in Grid-Interactive Residential Buildings

May 1, 2023
Author(s)
Brian Woo-Shem, Kaleb Pattawi, Hannah Covington, Patrick McCurdy, Chenli Wang, Thomas Roth, Cuong Nguyen, Yuhong Liu, Hohyun Lee
Energy consumption in buildings continues to rise with increased deployment of energy-consuming equipment such as Heating, Ventilation, and Air Conditioning (HVAC) amid a growing world economy. Renewable energy is projected to comprise a majority of the

A Review of Machine Learning Control in Building Operations

March 14, 2023
Author(s)
Liang Zhang, Zhelun Chen, Xiangyu Zhang, Amanda Pertzborn
Machine learning control (MLC) is a highly flexible and adaptable method that enables the design, modeling, tuning, and maintenance of building controllers to be more accurate, automated, flexible, and adaptable. The research topic of MLC in building

Generator Fleet Characteristics Model

February 6, 2023
Author(s)
Cheyney O'Fallon, Avi Gopstein
This manuscript presents the Generator Fleet Characteristics Model (GFCM), a general purpose tool for the analysis of power system operations, economics, and resilience. The GFCM is a collection of MATLAB functions that use publicly available data with

Benefits of Smart Grid Interoperability

December 8, 2022
Author(s)
Avi Gopstein, Cuong Nguyen, Cameron Brooks, Michael Hughes, Marguerite Behringer, Wendy Klarman, Chris Villarreal, Danielle Sass Byrnett
The electricity grid is changing. The National Institute of Standards and Technology (NIST) has indicated that operating a modern grid will involve a diverse portfolio of energy resources and multiple economic structures that will rely on, and ultimately

On the "intrinsic" breakdown of thick gate oxide

October 12, 2022
Author(s)
Kin (Charles) Cheung
Thick gate oxide breakdown mechanism becomes an important topic again due to the rising demand of power electronics. The failure of the percolation model in explaining the observed Weibull shape factor of thick oxide breakdown distribution seriously

Development of a Hardware-in-the-loop Testbed for Laboratory Performance Verification of Flexible Building Equipment in Typical Commercial Buildings

June 27, 2022
Author(s)
Zhelun Chen, Jin Wen, Steven T. Bushby, Caleb Calfa, Yangyang Fu, Gabriel Grajewski, Yicheng Li, L. James Lo, Zheng O'Neill, Vance (Wm.) Payne, Amanda Pertzborn, Zhiyao Yang
The goals of reducing energy costs, shifting electricity peaks, increasing the use of renewable energy, and enhancing the stability of the electric grid can be met in part by fully exploiting the energy flexibility potential of buildings and building

Interoperability Profile for Electric Vehicle Fleet Managed Charging

May 20, 2022
Author(s)
Cuong Nguyen
This application profile analyzes the capabilities of IEEE 2030.5-2018, an available smart grid focused open communication standard, to effectuate a use case that defines the communications aspects of the business function of an electric utility executing

IEC 61850 Profile for Distributed Energy Resources Supporting IEEE 1547

May 4, 2022
Author(s)
Hasan Giray Oral, DJ Anand, Cuong Nguyen, Avi Gopstein, Christoph Brunner, Alexander Apostolov
This document provides an IEC 61850 profile for a Distributed Energy Resource supporting IEEE 1547 and the grid support functions therein. The profile utilizes the IEC 61850 data object model and maps the requirements of IEEE 1547 to the data object model

Pore and Grain Chemistry during sintering of garnet-type Li6.4La3Zr1.4Ta0.6O12 solid-state electrolytes

March 11, 2022
Author(s)
Joshua Hammons, J. Ali Espitia, Erika Ramos, Rongpei Shi, Frederick Meisenkothen, Marissa Wood, Maira Ceron-Hernandez, Jianchao Ye
Garnet-type solid-state electrolytes have significant advantages over liquid organic electrolytes but require energy-intensive sintering to achieve high density and ionic conductivity. The aim of this study is to understand the chemical and microstructural
Displaying 1 - 25 of 155