Results 1 to 10 of about 7,259 (258)

Multi-Mode Voltage Sag/Swell Generator Based on Three-Phase Inverter Circuit

open access: yesEnergies, 2021
The voltage ride through capability of the major auxiliary variable-frequency drive (VFD) in large thermal power plants is the key technical issue of power grid and source coordination.
Qiguo Han   +5 more
doaj   +3 more sources

UKF based estimation approach for DVR control to compensate voltage swell in distribution systems

open access: yesAin Shams Engineering Journal, 2018
The Dynamic Voltage Restorer (DVR) is identified as the best solution for mitigation of voltage sag and swell related problems in the much taped distribution system. The compensation performance of the DVR very much depends on its control algorithm.
P. SasiKiran, T. Gowri Manohar
doaj   +3 more sources

Grid-Connected Rectifier Based Dynamic Voltage Restorer To Improve Power Quality By Compensating Voltage Sag And Swell [PDF]

open access: yesE3S Web of Conferences, 2021
Voltage sag and voltage swell are frequently occurred power quality problems in present power distribution system, which are cause more problems to avoid these problems and maintain constant voltage at sensitive load during sag and swell Dynamic voltage ...
Thota Someshwara   +3 more
doaj   +1 more source

Power quality enhancement using Artificial Neural Network (ANN) based Dynamic Voltage Restorer (DVR) [PDF]

open access: yesE3S Web of Conferences, 2021
The power quality, which can affect consumers and their utility, is a key concern of modern power system. The sensitive equipment is damaged by voltage harmonics, sag and swell.
Kasala Chaitanya   +2 more
doaj   +1 more source

Power quality improvement using ultra capacitor based dynamic voltage restorer with real twisting sliding mode control

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. Power quality is a major problem in today's power system, since it may have an impact on customers and utilities. Problem. Power quality is important issue of financial consequences for utilities, their consumers and load apparatus vendors.
M. S. Shah, T. Mahmood, M. F. Ullah
doaj   +1 more source

Identification of Power Quality Disturbances Based on Fast Fourier Transform and Artificial Neural Network

open access: yesJurnal Rekayasa Elektrika, 2023
This paper presents the proposed algorithms for the identification of Short Duration RMS Variations and Long Duration RMS Variations combined with harmonic. The proposed algorithms are Fast Fourier Transform (FFT) and Artificial Neural Network (ANN). The
Dimas Okky Anggriawan   +3 more
doaj   +1 more source

An Evaluation Method for Bus and Grid Structure Based on Voltage Sags/Swells Using Voltage Ellipse Parameters

open access: yesIEEE Access, 2021
Voltage sags and swells are significant issues of power quality. In order to alleviate voltage sags and swells on sensitive loads, a method is proposed to evaluate the bus and grid structure based on voltage sags/swells using voltage ellipse parameters ...
Li Ma   +4 more
doaj   +1 more source

A Novel Solar Photovoltaic Fed TransZSI-DVR for Power Quality Improvement of Grid-Connected PV Systems

open access: yesIEEE Access, 2021
In this article, a new solar PV fed Dynamic Voltage Restorer (DVR) based on Trans-Z-source Inverter (TransZSI) is proposed to improve the power quality of on-grid Photovoltaic (PV) systems.
Ali Moghassemi   +4 more
doaj   +1 more source

Multipurpose Compensation Scheme for Voltage Sag/Swell and Selective Harmonics Elimination in Distribution Systems

open access: yesAdvances in Electrical and Electronic Engineering, 2018
Voltage harmonics, sag, and swell are the most harmful disturbances in distribution systems. This paper introduces a novel effective controller method for simultaneous compensation of both voltage sag/swell and voltage harmonics by using multifunctional ...
Mustafa Inci   +4 more
doaj   +1 more source

Mitigation of supply voltage disturbances with a load voltage-controlled inverter

open access: yesEngineering and Applied Science Research, 2021
The three-phase four-wire Voltage Controlled Voltage Source Inverter (VC-VSI) is proposed as a multi-function voltage compensator for supply voltage disturbances to improve the load voltage quality.
Hanny H. Tumbelaka
doaj   +1 more source

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