Electrical Reliability Council of Texas Inc.

TX, United States

Electrical Reliability Council of Texas Inc.

TX, United States
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Luo X.,Electrical Reliability Council of Texas Inc. | Ma K.,National Electrical Power Dispatching and Communication Center
Dianwang Jishu/Power System Technology | Year: 2011

ERCOT region has witnessed the booming of wind generation development in recent years and leads the U. S. with the most installed wind generation capacity. ERCOT has gained rich experience in operations of wind generation. This paper introduces wind power forecast, and day-ahead and real-time operations of wind generation in ERCOT nodal power market. ERCOT's emergency operations in wind related events are also presented. The paper is concluded with a summary of ERCOT's experience that can be learned to improve operations of wind generation in China.


D'Annunzio C.,Electrical Reliability Council of Texas Inc. | Betanabhatla V.,Electrical Reliability Council of Texas Inc. | Koepke J.,Electrical Reliability Council of Texas Inc. | Reyes L.S.,Electrical Reliability Council of Texas Inc. | And 3 more authors.
IEEE Power and Energy Society General Meeting | Year: 2012

During the first week of February 2011, the Electric Reliability Council of Texas (ERCOT), an independent system operator that manages approximately 85% of Texas' power usage, experienced unusually cold weather conditions. The severe conditions led to generation losses which affected over 3 million electric customers [1]. This paper describes the weather conditions experienced and summarizes the chronology of ERCOT's operational events. © 2012 IEEE.


Nuthalapati S.,Electrical Reliability Council of Texas Inc. | Chen J.,Electrical Reliability Council of Texas Inc. | Shrestha P.,American Electric Power | Huang S.-H.,Electrical Reliability Council of Texas Inc. | And 4 more authors.
International Journal of Emerging Electric Power Systems | Year: 2013

This paper discusses experiences in the use of synchronized phasor measurement technology in Electric Reliability Council of Texas (ERCOT) interconnection, USA. Implementation of synchronized phasor measurement technology in the region is a collaborative effort involving ERCOT, ONCOR, AEP, SHARYLAND, EPG, CCET, and UT-Arlington. As several phasor measurement units (PMU) have been installed in ERCOT grid in recent years, phasor data with the resolution of 30 samples per second is being used to monitor power system status and record system events. Post-event analyses using recorded phasor data have successfully verified ERCOT dynamic stability simulation studies. Real time monitoring software "RTDMS"® enables ERCOT to analyze small signal stability conditions by monitoring the phase angles and oscillations. The recorded phasor data enables ERCOT to validate the existing dynamic models of conventional and/or wind generator. © 2013 by Walter de Gruyter Berlin / Boston 2013.


Maggio D.J.,Electrical Reliability Council of Texas Inc.
IEEE Power and Energy Society General Meeting | Year: 2012

In recent years many electric power grids, including the Electric Reliability Council of Texas (ERCOT), have seen a growing percentage of total energy coming from variable generation resources. In ERCOT, Wind-powered Generation Resources (WGRs) have been the primary source of this growth. As the penetration has increased, the influence of WGRs on market prices has also become more prevalent. This paper uses the ERCOT Nodal Market to explore the impacts of WGRs on both energy and Ancillary Service (AS) prices. To perform this analysis, typical energy offers for WGRs are first examined. In addition, ERCOT's methodology for determining reserve requirements is modified to remove the effects of WGRs in an attempt to quantify the impacts of WGR output uncertainty and variability. © 2012 IEEE.


Luo X.,Electrical Reliability Council of Texas Inc. | Obadina O.,Electrical Reliability Council of Texas Inc.
IEEE PES General Meeting, PES 2010 | Year: 2010

Ensuring system reliability and security while operating electricity markets is the primary responsibility of independent system operators. Maintaining system security in real-time is a significant challenge due to limited time frame permitted for analyzing and responding to security issues. This paper focuses on the applications designed to address static security in the real-time operations of ERCOT nodal electricity market. It first gives the theoretical fundamentals of the definition of power system static security, security assessment based on contingency analysis and security enhancement based on security constrained optimal power flow method. Following the theoretical background discussion, applications for static security assessment and enhancement are introduced. The business process to handle security violations of transmission constraints using those applications is further explained. ©2010 IEEE.


Xie L.,Texas A&M University | Luo X.,Electrical Reliability Council of Texas Inc. | Obadina O.,Electrical Reliability Council of Texas Inc.
IEEE Power and Energy Society General Meeting | Year: 2011

Compared with conventional static security constrained economic dispatch, look-ahead dispatch leverages the near-term forecasts of variable generation for an overall more cost-effective utilization of generation assets. This panel paper presents a case study of applying look-ahead dispatch in the nodal market operations of Electric Reliability Council of Texas (ERCOT) system. The major components of the ERCOT nodal market and the incorporated look-ahead functions are introduced first. Then an ERCOT-scale case study to demonstrate the benefits of look-ahead dispatch compared with static security-constrained economic dispatch is presented. © 2011 IEEE.


Trademark
Electrical Reliability Council of Texas Inc. | Date: 2011-12-27

Computer software and hardware for data integration and visualization of a power grid to support situation awareness and optimize user experience.

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