Results 31 to 40 of about 1,249 (257)

An advanced wide-area fault detection and location technique for transmission lines considering optimal phasor measurement units allocation

open access: yesAlexandria Engineering Journal, 2022
The transmission system plays a vital role in the electric power system as it links load centers with power generation and, so, it is mandatory to protect this system from any abnormal conditions.
Hossam A. Abd el-Ghany   +2 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

Optimal PMUs Placement Due to Several Stages for Achieving Full System Observability

open access: yesRenewable Energy and Sustainable Development, 2017
The new measurement devices such as phasor measurement units (PMUs), is considered to be an essential component in implementing future power network systems.
Mohamed Badr   +2 more
doaj   +1 more source

A Robust Scheme for Coherency Detection in Power Systems

open access: yesJurnal Nasional Teknik Elektro, 2021
This paper presents an approach for online generator coherency identification based on windowed dynamic time warping (DTW). Generator rotor speed deviations measured by phasor measurement units (PMUs) are used as input data to compute a DTW ...
Gideon Adom-Bamfi   +1 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

Measurement accuracy verification of phasor measurement unit with dynamic phasor estimation

open access: yesArchives of Electrical Engineering, 2018
Power systems that are highly loaded, especially by a stochastic supply of renewables and the presence of storages, require dynamic measurements for their optimal control. Phasor measurement units (PMUs) can be used to capture electrical parameters of a power system.
Bartłomiej Arendarski   +3 more
openaire   +2 more sources

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

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

Childhood Acute Lymphoblastic Leukemia Survival in Western Kenya: Reduction in Early Deaths and Treatment Abandonment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background An earlier study on children diagnosed with acute lymphoblastic leukemia (ALL) at Moi Teaching and Referral Hospital (MTRH) in Kenya reported a low event‐free survival (EFS), excess treatment abandonment, and high induction mortality.
Gilbert Olbara   +7 more
wiley   +1 more source

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