Results 251 to 260 of about 168,052 (333)

TAPS and RINA: Do they fit together?

Conference on Innovation in Clouds, Internet and Networks, 2020
RINA, the Recursive InterNetwork Architecture, is a novel network architecture that has been proposed as an alternative to the current Internet. RINA comes with a new design and well-defined principles that attempt to solve the common problems of today's
Kristjon Ciko, M. Welzl, M. Marek
semanticscholar   +1 more source

Observability analysis and estimation of transformer tap settings.

2003 IEEE Bologna Power Tech Conference Proceedings,, 2004
This paper presents a numerical algorithm for observability analysis in a state estimation model which treats transformer tap settings as state variables and provides for turns ratio and phase-shift angle measurements. The proposed model is (transformed to a conventional node frame of reference formulation, by introducing two fictitious buses and ...
P.J. Katsikas   +2 more
openaire   +1 more source

Observability and estimation of transformer tap setting with minimal PMU placement

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008
One of the most important applications of phasor measurement units (PMUs) is power system state estimation. Some models have been proposed for including phasor measurements in the state estimation. But, all of these models have treated transformer tap settings (voltage transformer turns ratio and phase-shift transformer angle) as fixed parameters of ...
M. Shiroie, S. H. Hosseini
openaire   +1 more source

Optimal Tap Setting of Voltage Regulation Transformers in Unbalanced Distribution Systems

IEEE Transactions on Power Systems, 2016
In this paper, we propose a method to optimally set the tap position of voltage regulation transformers in distribution systems. We cast the problem as a rank-constrained semidefinite program (SDP), in which the transformer tap ratios are captured by 1) introducing a secondary-side “virtual” bus per transformer, and 2) constraining the values that ...
Brett A. Robbins   +2 more
openaire   +1 more source

Can Personal Goal Setting Tap the Potential of the Gifted Underachiever?

Roeper Review, 2010
Although underachieving gifted students have been largely ignored in empirical research, there has been a modest surge of interest in describing and “treating” this population in recent years. It is estimated that nearly half of gifted youth achieve significantly below their potential.
Dominique Morisano, Bruce M. Shore
openaire   +1 more source

State estimation of voltage and phase-shift transformer tap settings

IEEE Transactions on Power Systems, 1992
A transformer tap estimation technique is presented that overcomes earlier limitations because of a direct algorithmic approach. The procedure provides for turn ratio and phase angle measurements, and treats each transformer tap setting as an independent state variable.
P.A. Teixeira   +4 more
openaire   +1 more source

Variable voltage set point control of tap changers in distribution grids

IEEE PES Innovative Smart Grid Technologies, Europe, 2014
This paper discusses changing requirements for tap changer controllers in distribution grids with high penetration of renewable generation. Furthermore, a new tap changer controller approach based on a power flow dependent voltage set point curve using hysteresis is introduced.
E.-M. Baerthlein   +2 more
openaire   +1 more source

Optimization of fixed tap transformer setting in bulk electric systems

IEEE Transactions on Power Systems, 1991
A novel technique was developed to determine fixed tap transformer settings that are optimal for several load patterns representing, for example, winter peak, summer peak, and off-peak loading patterns. The solution algorithm is based on the Newton approach and employs a recently developed technique to identify binding inequality constraints. A special
W. Kellerman   +3 more
openaire   +1 more source

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