Results 31 to 40 of about 1,424,911 (262)

Hybrid power filters for three-phase four-wire systems

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Using the differential method for calculating the heat and mass transfer, numerical studies of thermal and aerodynamic parameters in the firebox tube furnaces with acoustic gas burners flame grazing at different amounts tiered burners on the side wall of
M. O. Chernyshov   +2 more
doaj   +1 more source

Influence of the Skin and Proximity Effects on the Thermal Field in Flat and Trefoil Three-Phase Systems with Round Conductors

open access: yesEnergies
The passage of current generates heat and increases the temperature of electrical components, which affects the environment, support insulators and contacts.
Paweł Jabłoński   +3 more
doaj   +1 more source

Optimal reconfiguration and DG allocation in balanced and unbalanced distribution systems

open access: yesAin Shams Engineering Journal, 2014
This paper investigates feeder reconfiguration in balanced and unbalanced networks and presents an efficient method to optimize practical distribution systems by means of simultaneous reconfiguration and distributed generation (DG) allocation.
Seyed Abbas Taher   +1 more
doaj   +1 more source

Adaptive Control of DC Voltage in Three-Phase Three-Wire Shunt Active Power Filters Systems

open access: yesEnergies, 2020
This paper is focused on an adaptive controller for the direct current (DC) voltage in three-phase three-wire shunt active power filters systems. Although the controller structure of the proportional-integral (PI) type is determined off-line and does not
Mihaela Popescu   +4 more
doaj   +1 more source

Using CPC-Based Minimizing Balancing Compensation to Reduce the Budeanu Reactive Currents Described in Extended Budeanu Theory

open access: yesEnergies
This article presents principles for matching reactance parameters for minimizing balancing compensation, whose mathematical origins come from the Currents’ Physical Components (CPC) theory developed by Czarnecki. The construction of minimizing balancing
Zbigniew Sołjan
doaj   +1 more source

Finding connections between three interacting biological oscillators using phase dynamics modeling [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this work was to identify couplings between three interacting biological oscillators using phase dynamics modeling and to determine the influence of a pathological condition on the configuration of unidirectional triplewise couplings in ...
Dick, Olga Evgenievna
doaj   +1 more source

Compact Three Phase Multilevel Inverter for Low and Medium Power Photovoltaic Systems

open access: yesIEEE Access, 2020
A new three phase multilevel inverter with reduced number of components count is proposed in this paper. This inverter is designed using a single DC source per phase to generate multiple level output voltage which makes it suitable for low and medium ...
Md. Halim Mondol   +5 more
doaj   +1 more source

Reduced Reference Frame Transformation Assessment in Unbalanced Three-Phase Four-Wire Systems

open access: yesIEEE Access, 2023
Three-phase four-wire systems require a reference frame similar to that used in 3-phase 3-wire system configurations that allow them to be easily analysed, modelled and controlled.
Francisco Casado-Machado   +3 more
doaj   +1 more source

Zero‐Sequence current measurement uncertainty in three‐phase power systems during normal operation

open access: yesIET Generation, Transmission & Distribution, 2021
Zero‐sequence currents in high‐voltage power systems during normal operation can have a significant influence on nearby infrastructure. It is therefore necessary to gain insight into typical levels of zero‐sequence currents in a variety of operational ...
Sjoerd Nauta, Ramiro Serra
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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