Results 41 to 50 of about 250,902 (302)

An AC–DC Hybrid Multi-Port Energy Router With Coordinated Control and Energy Management Strategies

open access: yesIEEE Access, 2019
Energy router is an intelligent power electronic device that can realize the active management of power flow and provide convenient access to distributed energy resource.
Bin Liu   +6 more
doaj   +1 more source

A Review of Health Assessment Techniques for Distribution Transformers in Smart Distribution Grids

open access: yesApplied Sciences, 2020
Due to the large number of distribution transformers in the distribution grid, the status of distribution transformers plays an important role in ensuring the safe and reliable operation of the these grids. To evaluate the distribution transformer health,
Quynh T. Tran   +6 more
doaj   +1 more source

Transformation of Frequency Distributions [PDF]

open access: yesNature, 1948
FREQUENCY distributions of numbers of eggs, insects, spores, or other biological entities are descriptive of discrete variation, and can never be represented exactly by a normal distribution or by any other distribution of a continuous variate. Nevertheless, when the number of observations and the range of variation is large, such distributions may ...
openaire   +2 more sources

The stieltjes transform of distributions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
In the present work, two complex inversion formulas of Byrne and Love for generalized Stieltjes transformation are shown to be valid for a class of distributions. This is accomplished by transfering the complex inversion formulas on the testing function space of a class of distributions and then showing that the limiting process in the resulting ...
U. N. Tiwari, J. N. Pandey
openaire   +3 more sources

Experimental validation of using frequency response analysis method in measuring interwinding capacitance of power transformers

open access: yesEngineering Reports, 2019
The interwinding capacitance of transformers describes the diagnostic status of winding‐insulation and its geometry. Naturally, there is a constant drive in improvising the existing methods and to attain accurate information while measuring interwinding ...
Saravanakumar Arumugam
doaj   +1 more source

An Optimal Phase Arrangement of Distribution Transformers under Risk Assessment

open access: yesEnergies, 2020
This paper presents a phase arrangement procedure for distribution transformers to improve system unbalance and voltage profile of distribution systems, while considering the location and uncertainties of the wind turbine (WT) and photovoltaics (PV ...
Chia-Sheng Tu   +2 more
doaj   +1 more source

Study on Operation Parameter Characteristics of Induction Filter Distribution Transformer in Low-Voltage Distribution Network

open access: yesIEEE Access, 2021
There is a need for induction filter technology in the field of low-voltage distribution networks. This paper proposes an induction filter distribution transformer with a unique Dd0yn11 three-winding configuration. This approach allows for the control of
Xiao Zhang   +3 more
doaj   +1 more source

Transform-Based Distributed Data Gathering [PDF]

open access: yesIEEE Transactions on Signal Processing, 2010
A general class of unidirectional transforms is presented that can be computed in a distributed manner along an arbitrary routing tree. Additionally, we provide a set of conditions under which these transforms are invertible. These transforms can be computed as data is routed towards the collection (or sink) node in the tree and exploit data ...
Shen, Godwin, Ortega, Antonio
openaire   +2 more sources

Introducing small storage capacity at residential PV installations to prevent overvoltages [PDF]

open access: yes, 2011
Low voltage distribution feeders are designed for unidirectional energy supply from transformer to consumer. However, the implementation of small-scale PV production units on local utilities may result in bidirectional energy flows.
Cappelle, Jan   +6 more
core   +1 more source

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter   +17 more
wiley   +1 more source

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