Results 31 to 40 of about 31,735,618 (294)

Mathematical Foundations for Balancing Single-Phase Residential Microgrids Connected to a Three-Phase Distribution System

open access: yesIEEE Access, 2022
With the increased installation of single-phase rooftop PV systems, in-house battery storage units, and high-power plug-in loads (i.e., EVs) at single-phase residential sites, it is prevalent that an increasing number of residential distribution systems ...
Syed A. Raza, Jin Jiang
doaj   +1 more source

Hardware for classification of power quality problems in three phase system using Microcontroller

open access: yesCogent Engineering, 2017
Power quality is a growing concern as the number of electric sensitive loads is increasing day by day in all fields. Poor power quality is badly affecting sensitive loads causing instability, malfunctioning, loss of data and great loss of economy.
S. Asha Kiranmai, A. Jaya Laxmi
doaj   +1 more source

Real-Time Three-Phase Dynamic Full ACPF Distribution System Model

open access: yesYanbu Journal of Engineering and Science, 2022
Power flow is the backbone for power system operation and control. Power system balancing, where supply of energy has to equal demand all time, is a very important operation constraint for electric power systems.
Sultan Hakmi Jr.
doaj   +1 more source

Improving Inverter Output Current Controller Under Unbalanced Conditions by Using Virtual Impedance

open access: yesIEEE Access, 2021
Nowadays, three-phase inverters have been commonly used in power systems, especially in renewable energy and motor drives applications. In many applications, the inverter has to generate balanced sinusoidal three-phase currents even though it is ...
Lukas Antonio Budiwicaksana   +4 more
doaj   +1 more source

Adaptive nonlinear control of single-phase to three-phase UPS system

open access: yesMATEC Web of Conferences, 2014
This work deals with the problems of uninterruptible power supplies (UPS) based on the single-phase to three-phase converters built in two stages: an input bridge rectifier and an output three phase inverter.
Kissaoui M.   +4 more
doaj   +1 more source

Power Management in Three-Phase Grid-Integrated PV System with Hybrid Energy Storage System

open access: yesEnergies, 2023
The management of energy in distribution networks has been gathering attention in recent years. The simultaneous control of generation and demand is crucial for achieving energy savings and can further lower energy pricing.
Chinmaya Jagdev Jena, Pravat Kumar Ray
doaj   +1 more source

The International Study of Asthma and Allergies in Childhood (ISAAC) Phase Three: A global synthesis [PDF]

open access: yes, 2013
This ISAAC Phase Three synthesis provides summarised information on the main findings of the study, regional tables and figures related to the prevalence and severity of current symptoms of asthma, rhinoconjunctivitis and eczema in the main regions of ...
Keil, U   +7 more
core   +1 more source

Mathematical Modelling of Transient Processes in a Three Phase Electric Power System for a Single Phase Short-Circuit

open access: yesEnergies, 2022
Field approaches are employed to develop a mathematical model of a power network section. The facility consists of two electric power subsystems described with ordinary differential equations and presented as concentrated parameter systems connected with
Andriy Chaban   +3 more
doaj   +1 more source

Geometric Phase of Three-Level Systems in Interferometry [PDF]

open access: yesPhysical Review Letters, 2001
We present the first scheme for producing and measuring an Abelian geometric phase shift in a three-level system where states are invariant under a non-Abelian group. In contrast to existing experiments and proposals for experiments, based on U(1)-invariant states, our scheme geodesically evolves U(2)-invariant states in a four-dimensional SU(3)/U(2 ...
Sanders, Barry C.   +3 more
openaire   +3 more sources

Muscle: A Three Phase System [PDF]

open access: yesThe Journal of General Physiology, 1959
The partition of sulfate, Ca++, and Mg++ across the membrane of the sartorius muscle has been studied, and the effect of various concentrations of these ions in the Ringer solution on the cellular level of Na+, K+, and Cl- has been determined. The level of the three divalent ions in toad plasma and muscle in vivo has been assayed. Muscle
R, FRATER, S E, SIMON, F H, SHAW
openaire   +5 more sources

Home - About - Disclaimer - Privacy