Results 31 to 40 of about 13,164 (284)

Dynamic phasor and frequency estimator for phasor measurement units

open access: yesIET Generation, Transmission & Distribution, 2010
Synchrophasors and frequency estimations play an increasingly important role in power systems. Discrete Fourier transform (DFT) may introduce errors into phasor and frequency estimations under dynamic conditions, such as power oscillation. A dynamic phasor and frequency estimator for phasor measurement units (PMUs) is proposed to improve accuracy by ...
R.K. Mai, Z.Y. He, L. Fu, W. He, Z.Q. Bo
openaire   +1 more source

A Backend Framework for the Efficient Management of Power System Measurements [PDF]

open access: yes, 2016
Increased adoption and deployment of phasor measurement units (PMU) has provided valuable fine-grained data over the grid. Analysis over these data can provide insight into the health of the grid, thereby improving control over operations. Realizing this
Bass, Robert   +5 more
core   +3 more sources

Optimal µPMU Placement Considering Node Importance and Multiple Deployed Monitoring Devices in Distribution Networks

open access: yesEnergies
The placement of micro phasor measurement units in an active distribution network can improve the monitoring performance of the system. However, the price and placement cost of micro phasor measurement units are high, so existing research mostly focuses ...
Ruifeng Zhao   +9 more
doaj   +1 more source

A Multi-objective PMU Placement Method Considering Observability and Measurement Redundancy using ABC Algorithm

open access: yesAdvances in Electrical and Computer Engineering, 2014
This paper presents a Multi- objective Optimal Placement of Phasor Measurement Units (MOPP) method in large electric transmission systems. It is proposed for minimizing the number of Phasor Measurement Units (PMUs) for complete system observability and
KULANTHAISAMY, A.   +3 more
doaj   +1 more source

Experience in implementing the algorithm for emergency control system of unloading in case of overload in terms of power based on synchrophasor angle [PDF]

open access: yesE3S Web of Conferences
An algorithm for automatic unloading during a power overload is described. It is based on measurement of the phase angle between voltages on the Tyumen - Ural power transmission line, which is determined by information from phasor measurement units.
Govorun Mikhail   +5 more
doaj   +1 more source

AN EFFICIENET ALGORITHM FOR STATIC STATE ESTIMATION IN ELECTRIC POWER SYSTEM [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
This paper presents an efficient static state estimator that is suitable for real time monitoring of the power system. The proposed algorithm includes a weighted least square (WLS) method based on rectangular coordinates system.
Mohammed Falih Hasan   +1 more
doaj   +1 more source

Sequential Discrete Kalman Filter for Real-Time State Estimation in Power Distribution Systems: Theory and Implementation

open access: yes, 2017
This paper demonstrates the feasibility of implementing Real-Time State Estimators (RTSEs) for Active Distribution Networks (ADNs) in Field-Programmable Gate Arrays (FPGAs) by presenting an operational prototype.
Kettner, Andreas Martin, Paolone, Mario
core   +1 more source

A Software-based Low-Jitter Servo Clock for Inexpensive Phasor Measurement Units

open access: yes, 2018
This paper presents the design and the implementation of a servo-clock (SC) for low-cost Phasor Measurement Units (PMUs). The SC relies on a classic Proportional Integral (PI) controller, which has been properly tuned to minimize the synchronization ...
Brunelli, Davide   +4 more
core   +1 more source

Design and implementation of the integrated experiment cabinet for micro-transmission lines

open access: yesThe Journal of Engineering, 2018
Micro-transmission lines are the physical model elements that own the same physical properties as the real transmission lines in power system, which are the significant components of a micro-dynamic simulation laboratory.
Hao Li, Yi Lu, Hengxu Zhang, Zewen Zheng
doaj   +1 more source

Design and Application of a Distribution Network Phasor Data Concentrator

open access: yesApplied Sciences, 2020
The wide area measurement system (WAMS) based on synchronous phasor measurement technology has been widely used in power transmission grids to achieve dynamic monitoring and control of the power grid.
Weiqing Tao   +6 more
doaj   +1 more source

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