نتایج جستجو برای: Synchronized Voltage Measurement
تعداد نتایج: 558751 فیلتر نتایج به سال:
in this paper, a novel neuro-fuzzy based method combined with a feature selection technique is proposed for online dynamic voltage stability status prediction of power system. this technique uses synchronized phasors measured by phasor measurement units (pmus) in a wide-area measurement system. in order to minimize the number of neuro-fuzzy inputs, training time and complication of neuro-fuzzy ...
In this paper, a novel neuro-fuzzy based method combined with a feature selection technique is proposed for online dynamic voltage stability status prediction of power system. This technique uses synchronized phasors measured by phasor measurement units (PMUs) in a wide-area measurement system. In order to minimize the number of neuro-fuzzy inputs, training time and complication of neuro-fuzzy ...
In wide area measurement systems, PMUs are the main component measuring real time synchronized data from different buses. Installation of PMUs at all buses is a primary way to provide full observability of the power network. However, it is not practical in real networks due to the relatively expensive cost of PMUs and other technical limitations. Optimal PMU Placement (OPP) is an optimization p...
In India Power system monitoring is based mainly on measurements provided by Remote Terminal Unit (RTU). For power system measurement synchronized Phasor or Phasor Measurement Unit (PMU) is popular choice in abroad and its popularity is increasing day by day because of its several features. Direct measurement of voltage or current Phasor is possible because of PMU which was not possible earlier...
This article explores the application of Standard ZET-algorithm for gaps filling in Synchronized Phasor Measurement data assets received from Wide Area Systems. In spite apparent advantages, they have affecting accuracy solving power engineering tasks. Authors analysed reasons gap occurrence assets, provided experiments with voltage and current collected key points about ZET-algorithm.
This paper presents a technique for real-time predictionof stability/instability of a power system based on synchrophasor measurements obtained from phasor measurement units (PMUs) at generator buses.For stability assessment the technique makes use of system severity indices developed usingbus voltage magnitudeobtained from PMUs and generator electrical power. Generator power is computed using ...
We have experimentally demonstrated pumping of Cooper pairs in a single-island mesoscopic structure. The island was connected to leads through SQUID (Superconducting Quantum Interference Device) loops. Synchronized flux and voltage signals were applied whereby the Josephson energies of the SQUIDs and the gate charge were tuned adiabatically. From the current-voltage characteristics one can see ...
Paper describes start-up of Croatian Academic Research Wide Area Monitoring System (CARWAMS), which is intended to support involvement of small R&D teams into fast developing synchronized measurement technology (SMT). Low voltage synchrophasors are collected by platform called WAMSTER, including handheld Phasor Measurement Units (PMUs) and GPRS data transfer to a dedicated served. Measurements ...
Factor invariance between genders of the Wechsler Intelligence Scale for Children ¬タモ Fourth edition
The purpose of this study was to test measurement invariance of the WISC-IV factorial structure between genders. Both 10 and 15 subtest sets were tested on a nationally-representative sample of 2200 children (males N = 1100; females N = 1100). Results from multisample analyses supported partial measurement invariance. Except for a few subtle discrepancies involving correlated error terms, the h...
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