Results 31 to 40 of about 50,402 (304)

Investigating and Simulating DGs to Improve Voltage Profile and Reducing Power Loss in Unbalanced Distribution Networks

open access: yesAdvances in Electrical and Electronic Engineering, 2014
Development of Distributed generations (DGs) has changed the nature of power networks from passive to active. In order to specify a proper model for DG units, function and connection style of DGs to the network (direct or indirect) must be clarified.
Hassan Barati, Abdol Rasool Fatthi
doaj   +1 more source

Unbalance characteristics of fundamental and harmonic currents of three‐phase electric vehicle battery chargers

open access: yesIET Generation, Transmission & Distribution, 2020
Three‐phase electric vehicle (EV) battery chargers are expected to not impact the unbalance of distribution networks; moreover, using active power factor correction topologies they are expected to behave like resistive loads not affecting the system ...
Jesus C. Hernández   +3 more
doaj   +1 more source

Virtual Vector-Based FCS-MPC for NPC Three-Level Grid-Tied Inverter Without Weighting Factor of Neutral-Point Voltage Balancing

open access: yesIEEE Access, 2022
The neutral-point clamped (NPC) inverter is widely used in energy conversion, but the unbalance of neutral-point voltage (NPV) will lead to imprecise control and the decline of power quality.
Nan Jin   +4 more
doaj   +1 more source

Coordinated Control of Single-Phase End-Users for Phase Load Balancing in Active Electric Distribution Networks

open access: yesMathematics, 2021
In the paper, a coordinated control methodology of single-phase (1-P) end-users switching operations on the phases of an active electric distribution network (AEDN) has been proposed to obtain a minimum unbalance degree at the coupling common point (CCP)
Gheorghe Grigoraș   +6 more
doaj   +1 more source

Modeling Of Calculation Of Voltage Unbalance Factor Using Simulink (Matlab)

open access: yesThe American Journal of Engineering And Techonology, 2020
This paper presents the problem of power quality in asymmetric modes in low-voltage electrical networks. The modeling of determination of power value, voltages and currents and, accordingly, their symmetric components, using the Simulink package in the MatLab program is shown.
I.Kh. Kholiddinov   +4 more
openaire   +2 more sources

Estimation of power factor by the analysis of Power Quality data for voltage unbalance [PDF]

open access: yes2009 Third International Conference on Electrical Engineering, 2009
Power Quality (PQ) has been identified as a complex and diversified problem across the board in electrical power industry. It has not only confused the power utilities but also has attracted the attention of its customers and equipment manufacturers. Although extensive research work is being done in this field but one of the main problem encountered by
Paracha, Zahir Javed   +3 more
openaire   +2 more sources

Loss Minimization for Bipolar DC Distribution Grid Considering Probabilistic EV Charging Load Using Load Balancing Method

open access: yesIEEE Access, 2023
This paper proposes a novel method for power loss minimization and voltage unbalance mitigation in bipolar DC distribution grid (DCDG) considering probabilistic electric vehicle (EV) charging load.
Guntinan Sakulphaisan   +1 more
doaj   +1 more source

Optimized Hierarchical Power Oscillations Control for Distributed Generation Under Unbalanced Conditions

open access: yes, 2017
Control structures have critical influences on converter-interfaced distributed generations (DG) under unbalanced conditions. Most of previous works focus on suppressing active power oscillations and ripples of DC bus voltage.
Chen, Zhe   +4 more
core   +1 more source

Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]

open access: yes, 2012
In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
core   +1 more source

Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement [PDF]

open access: yes, 2013
We present a solid-state FBG array interrogator and multiplexer capable of determining absolute FBG wavelengths and of providing high-speed, high-resolution static and dynamic measurements.
Fusiek, Grzegorz   +3 more
core   +1 more source

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