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Title: Dynamic Line Rating Oncor Electric Delivery Smart Grid Program

Abstract

Electric transmission lines are the lifeline of the electric utility industry, delivering its product from source to consumer. This critical infrastructure is often constrained such that there is inadequate capacity on existing transmission lines to efficiently deliver the power to meet demand in certain areas or to transport energy from high-generation areas to high-consumption regions. When this happens, the cost of the energy rises; more costly sources of power are used to meet the demand or the system operates less reliably. These economic impacts are known as congestion, and they can amount to substantial dollars for any time frame of reference: hour, day or year. There are several solutions to the transmission constraint problem, including: construction of new generation, construction of new transmission facilities, rebuilding and reconductoring of existing transmission assets, and Dynamic Line Rating (DLR). All of these options except DLR are capital intensive, have long lead times and often experience strong public and regulatory opposition. The Smart Grid Demonstration Program (SGDP) project co-funded by the Department of Energy (DOE) and Oncor Electric Delivery Company developed and deployed the most extensive and advanced DLR installation to demonstrate that DLR technology is capable of resolving many transmission capacity constraint problemsmore » with a system that is reliable, safe and very cost competitive. The SGDP DLR deployment is the first application of DLR technology to feed transmission line real-time dynamic ratings directly into the system operation’s State Estimator and load dispatch program, which optimizes the matching of generation with load demand on a security, reliability and economic basis. The integrated Dynamic Line Rating (iDLR)1 collects transmission line parameters at remote locations on the lines, calculates the real-time line rating based on the equivalent conductor temperature, ambient temperature and influence of wind and solar radiation on the stringing section, transmits the data to the Transmission Energy Management System, validates its integrity and passes it on to Oncor and ERCOT (Electric Reliability Council of Texas) respective system operations. The iDLR system is automatic and transparent to ERCOT System Operations, i.e., it operates in parallel with all other system status telemetry collected through Supervisory Control and Data Acquisition (SCADA) employed across the company.« less

Authors:
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Publication Date:
Research Org.:
Oncor Electric Delivery Company Llc
Sponsoring Org.:
USDOE
OSTI Identifier:
1111102
DOE Contract Number:  
OE0000320
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats

Johnson, Justin, Smith, Cale, Young, Mike, Donohoo, Ken, Owen, Ross, Clark, Eddit, Espejo, Raul, Aivaliotis, Sandy, Stelmak, Ron, Mohr, Ron, Barba, Cristian, Gonzalez, Guillermo, Malkin, Stuart, Dimitrova, Vessela, Ragsdale, Gary, Mitchem, Sean, Jeirath, Nakul, Loomis, Joe, Trevino, Gerardo, Syracuse, Steve, Hurst, Neil, Mereness, Matt, Johnson, Chad, and Bivens, Carrie. Dynamic Line Rating Oncor Electric Delivery Smart Grid Program. United States: N. p., 2013. Web. doi:10.2172/1111102.
Johnson, Justin, Smith, Cale, Young, Mike, Donohoo, Ken, Owen, Ross, Clark, Eddit, Espejo, Raul, Aivaliotis, Sandy, Stelmak, Ron, Mohr, Ron, Barba, Cristian, Gonzalez, Guillermo, Malkin, Stuart, Dimitrova, Vessela, Ragsdale, Gary, Mitchem, Sean, Jeirath, Nakul, Loomis, Joe, Trevino, Gerardo, Syracuse, Steve, Hurst, Neil, Mereness, Matt, Johnson, Chad, & Bivens, Carrie. Dynamic Line Rating Oncor Electric Delivery Smart Grid Program. United States. doi:10.2172/1111102.
Johnson, Justin, Smith, Cale, Young, Mike, Donohoo, Ken, Owen, Ross, Clark, Eddit, Espejo, Raul, Aivaliotis, Sandy, Stelmak, Ron, Mohr, Ron, Barba, Cristian, Gonzalez, Guillermo, Malkin, Stuart, Dimitrova, Vessela, Ragsdale, Gary, Mitchem, Sean, Jeirath, Nakul, Loomis, Joe, Trevino, Gerardo, Syracuse, Steve, Hurst, Neil, Mereness, Matt, Johnson, Chad, and Bivens, Carrie. Sat . "Dynamic Line Rating Oncor Electric Delivery Smart Grid Program". United States. doi:10.2172/1111102. https://www.osti.gov/servlets/purl/1111102.
@article{osti_1111102,
title = {Dynamic Line Rating Oncor Electric Delivery Smart Grid Program},
author = {Johnson, Justin and Smith, Cale and Young, Mike and Donohoo, Ken and Owen, Ross and Clark, Eddit and Espejo, Raul and Aivaliotis, Sandy and Stelmak, Ron and Mohr, Ron and Barba, Cristian and Gonzalez, Guillermo and Malkin, Stuart and Dimitrova, Vessela and Ragsdale, Gary and Mitchem, Sean and Jeirath, Nakul and Loomis, Joe and Trevino, Gerardo and Syracuse, Steve and Hurst, Neil and Mereness, Matt and Johnson, Chad and Bivens, Carrie},
abstractNote = {Electric transmission lines are the lifeline of the electric utility industry, delivering its product from source to consumer. This critical infrastructure is often constrained such that there is inadequate capacity on existing transmission lines to efficiently deliver the power to meet demand in certain areas or to transport energy from high-generation areas to high-consumption regions. When this happens, the cost of the energy rises; more costly sources of power are used to meet the demand or the system operates less reliably. These economic impacts are known as congestion, and they can amount to substantial dollars for any time frame of reference: hour, day or year. There are several solutions to the transmission constraint problem, including: construction of new generation, construction of new transmission facilities, rebuilding and reconductoring of existing transmission assets, and Dynamic Line Rating (DLR). All of these options except DLR are capital intensive, have long lead times and often experience strong public and regulatory opposition. The Smart Grid Demonstration Program (SGDP) project co-funded by the Department of Energy (DOE) and Oncor Electric Delivery Company developed and deployed the most extensive and advanced DLR installation to demonstrate that DLR technology is capable of resolving many transmission capacity constraint problems with a system that is reliable, safe and very cost competitive. The SGDP DLR deployment is the first application of DLR technology to feed transmission line real-time dynamic ratings directly into the system operation’s State Estimator and load dispatch program, which optimizes the matching of generation with load demand on a security, reliability and economic basis. The integrated Dynamic Line Rating (iDLR)1 collects transmission line parameters at remote locations on the lines, calculates the real-time line rating based on the equivalent conductor temperature, ambient temperature and influence of wind and solar radiation on the stringing section, transmits the data to the Transmission Energy Management System, validates its integrity and passes it on to Oncor and ERCOT (Electric Reliability Council of Texas) respective system operations. The iDLR system is automatic and transparent to ERCOT System Operations, i.e., it operates in parallel with all other system status telemetry collected through Supervisory Control and Data Acquisition (SCADA) employed across the company.},
doi = {10.2172/1111102},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {5}
}