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Wide area measurement systems (WAMS) could provide enough information to estimate the electromechanical modes which characterize the dynamic properties of the power grid. Utilizing the measured synchrophasor data from frequency monitoring network (FNET/GridEye), this paper proposes an approach to estimate the oscillation frequency and damping regardless of ring-down or ambient condition in real-time...
Understanding power system dynamics is essential for online stability assessment and control applications. Global positioning system-synchronised phasor measurement units and frequency disturbance recorders (FDRs) make power system dynamics visible and deliver an accurate picture of the overall operation condition to system operators. However, in the actual field implementations, some measurement...
This paper promotes a better understanding of the power grid quality and dynamics through the introduction of a newly developed Universal Grid Analyzer (UGA). The UGA is a real-time, highly accurate, and GPS synchronized power grid monitoring device used at distribution level. They can function as a power quality analyzer by performing harmonics measurement along with voltage sag and swell detection...
Wide-area measurement systems have made it possible for operators to monitor the dynamics of the whole power system in real time. By utilizing the FNET/GridEye system in the distribution network, many synchrophasor-based event detectors have been developed. This paper focuses on the development of a real-time application for line trip detection. A frequency-based algorithm is selected to identify...
It has been demonstrated in previous studies that nation-wide or largely synchronous societal activities have impacts on the power grid frequency responses. This paper investigates NFL Super Bowl games as an example to evaluate the influence of synchronized human activities on the power system using data collected from a wide-area frequency monitoring network (FNET/GridEye). The statistics and plots...
Continuous and reliable supply of electricity is required for Egypt's socio-economic development. With a highly urbanized population and a high growth electricity demand, a systematic expansion of the electricity generation facilities and other infrastructure developments are imperative to cope with household demand. At the same time, economic growth will hinge on the provision of adequate and reliable...
Previous research into the occurrence of power system frequency extrema revealed that common patterns emerge over time. Using an existing algorithm developed for detecting and validating the extrema, we examine their occurrence in the Eastern (EI) and Western (WECC) Interconnections from January 2010 through September 2011. The results indicate that the frequency extrema continue to follow certain...
Nation-wide, or largely synchronous activities, such as the World Cup or Super Bowl, have impacts on the power grid frequency response. This paper examines the influence of these sporting events on power system dynamics using data collected from the Frequency Monitoring Network (FNET). The frequency data of the German power grid during the 2010 World Cup semifinal game and the U.S. power system during...
This paper discusses how the single phase phasor measurement data are used to validate the Oahu island grid model. The island system model is first established using available literature and proper assumptions. After validation via real system measurements, the physical model can truly represent the system dynamics. The model is used to study the integration of renewable source on the Oahu power grid.
Frequency dynamics is one of the most important measures of an electrical power system. To better understand power system dynamics, accurately measured wide-area frequency is needed. The concept of building an Internet based real-time GPS synchronized wide area frequency monitoring network (FNET) was proposed, and the actual system has been deployed. The FNET system consists of frequency disturbance...
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