Results 31 to 40 of about 434,849 (334)

Less-conventional low-consumption galvanic separated MOSFET-IGBT gate drive supply [PDF]

open access: yes, 2017
A simple half-bridge, galvanic separated power supply which can be short circuit proof is proposed for gate driver local supplies. The supply is made while hacking a common mode type filter as a transformer, as the transformer shows a good insulation, it
Bikorimana, Jean Marie Vianney   +1 more
core   +3 more sources

Appell Transformation and Canonical Transforms [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
The interpretation of the optical Appell transformation, as previously elaborated in relation to the free-space paraxial propagation under both a rectangular and a circular cylindrical symmetry, is reviewed. Then, the caloric Appell transformation, well known in the theory of heat equation, is shown to be amenable for a similar interpretation involving
openaire   +5 more sources

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

Leveraging Sensory Data in Estimating Transformer Lifetime

open access: yes, 2017
Transformer lifetime assessments plays a vital role in reliable operation of power systems. In this paper, leveraging sensory data, an approach in estimating transformer lifetime is presented.
Hosseini, Zohreh S.   +3 more
core   +1 more source

Power Transformer Vibration Analysis Model Based on Ensemble Learning Algorithm

open access: yesIEEE Access
The inflow of DC magnetic flux into the core of power transformers under DC bias conditions leads to a significant increase in operational losses, noise levels, and vibration amplitudes, posing substantial threats to the stability and reliability of the ...
Baidi Shi   +6 more
doaj   +1 more source

Design Implication of a Distribution Transformer in Solar Power Plants Based on Its Harmonic Profile

open access: yesEnergies, 2021
This article presents a comparative analysis for the design considerations for a solar power generation transformer. One of the main existing problems in transformer manufacturing is in the renewable energy field, specifically the solar power generation,
Iván Rafael Macías Ruiz   +5 more
doaj   +1 more source

A ripple reduction method for a two stages battery charger with multi-winding transformer using notch filter [PDF]

open access: yes, 2017
This paper presents a two-stage battery charger consisting of a bridgeless Totem-pole power factor correction (TP-PFC) circuit and a full bridge converter with a multi-winding transformer.
Allanf, Peter   +5 more
core   +2 more sources

High frequency wide-band transformer uses coax to achieve high turn ratio and flat response [PDF]

open access: yes, 1966
Center-tap push-pull transformer with toroidal core helically wound with a single coaxial cable creates a high frequency wideband transformer.
De Parry, T.
core   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

Design optimisation for distance between additional and tap winding in high-voltage transformers

open access: yesHigh Voltage, 2020
The transformer is one of the main components in the power network and transformer windings are one of the most expensive elements in the power transformer.
Kamran Dawood   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy