Results 241 to 250 of about 13,138 (285)

Phasor Measurement Unit Diagnosing

2018
Based on the global navigation system timestamp an equipment is applied to synchronize the measurement moment in various power buses, which are remote from each other, to measure the current and voltage phasors for the power system control. It is named phasor measurement unit (PMU).
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Phasor Measurement Unit and Phasor Data Concentrator Cyber Security

2013
Future bulk electric transmission systems will include substation automation, synchrophasor measurement systems, and automated control algorithms which leverage wide area monitoring systems to better control the grid. Prior to installation of new networked devices, utilities should perform cybersecurity testing and develop corrective actions for ...
Thomas H. Morris, Shengyi Pan, Uttam Adhikari, Nicolas Younan, Roger King, Vahid Madani   +5 more
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Comparative testing of synchronized phasor measurement units

IEEE Power Engineering Society General Meeting, 2004., 2005
This work reports the result of a comparative testing done on four phasor measurement units (PMU) from different manufacturers. Phase shift and attenuation at fundamental frequency, performance under system balanced and unbalanced conditions and performance under system variable frequency are the issues addressed for this comparative assessment.
J. Depablos, V. Centeno, A.G. Phadke, M. Ingram   +3 more
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A Brief Review on Synchro Phasor Technology and Phasor Measurement Unit

2020
In power system monitoring, supervisory control and data acquisition (SCADA) system has played an important role by computing the voltage and current signal for a local area. However, when quicker response is needed, phasor measurement unit (PMU) serves as an effective alternative owing to its faster reporting rate. In this paper, a brief review on PMU
Monalisa Mohanty, Ravi Kant, Asit Kumar, Debasis Sahu, Subhashree Choudhury   +4 more
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Petri net modeling of phasor measurement unit

2017 International Conference on Algorithms, Methodology, Models and Applications in Emerging Technologies (ICAMMAET), 2017
The electric grids are complex, large and highly interconnected with numerous generation power stations delivering power to major load centers. This has led to increasing need for real-time monitoring of grids. Wide area monitoring systems (WAMS) equipped with new era information and communication technology provides real-time situational awareness ...
Partha Bortamuly, Soumita Ghosh, Debomita Ghosh, Dusmanta Kumar Mohanta   +3 more
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Power system applications for phasor measurement units

IEEE Computer Applications in Power, 1994
State-of-the-art technology now permits measurement and analysis of power system performance on a scale not previously possible. Synchronized sampling, derived from the GPS (Global Positioning System), and high accuracy sigma-delta analog-to-digital converters form the basis for a system that can measure the state of the power system at a given instant
R.O. Burnett, M.M. Butts, P.S. Sterlina
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Diakoptic State Estimation Using Phasor Measurement Units

IEEE Transactions on Power Systems, 2008
This paper presents a diakoptic-based distributed state estimation (SE) algorithm suitable for large-scale power systems. In the proposed approach the large-scale power system is divided into a certain number of subsystems by removing tie line measurements. Based on diakoptic theory, the SE problem is then partitioned into a number of subproblems which
null Weiqing Jiang, V. Vittal, G.T. Heydt   +2 more
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Traceability of calibration for Phasor Measurement Unit

2012 IEEE Power and Energy Society General Meeting, 2012
IEEE Standard C37.118.1 defines requirements for the measurement and determination of a Phasor Measurement Unit (PMU). The PMUs must be tested to ensure that all PMUs on the power grid behave the same. In order to meet the requirement of PMU within specified uncertainty, the PMU calibration systems or calibrators must be traceable to known reference ...
Y. Tang, G. N. Stenbakken
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Phasor measurement unit using GPRS wireless connectivity

2011 IEEE PES CONFERENCE ON INNOVATIVE SMART GRID TECHNOLOGIES LATIN AMERICA (ISGT LA), 2011
This paper describes the development of a phasor measurement unit using data wireless transmission via GPRS. The detailed process in the design and construction of the prototype and the difficulties faced at different stages are presented. The results are finally evaluated using the Total Vector Error (TVE) calculated for each of the testing designs.
Alvaro A. Zambrano, Miguel A. Leon, Edwin Rivas   +2 more
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End-to-End Remote Field Testing of Phasor Measurement Units Using Phasor Measurement Unit Performance Analyzer Test Suite

IEEE Transactions on Industry Applications, 2020
Phasor measurement unit (PMU) testing is desired to ensure the continued power system monitoring and the maneuvering precision of synchrophasor-based control. IEEE Std C37.118 and IEEE synchrophasor measurement test suite specification (TSS) clarify the different requirements for both steady-state and dynamic test scenarios with varied error ranges ...
Chuan Qin, Zhijie Nie, P. Banerjee, Anurag K. Srivastava   +3 more
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