Results 21 to 30 of about 3,108 (255)

Observer-Based Quadrature Signal Generator for UPQC in a Single-Phase Distribution System [PDF]

open access: yesITM Web of Conferences, 2022
This paper presents a control algorithm for generation of reference voltage and current based on Observerbased QSG (Quadrature Signal Generator) for UPQC (Unified Power Quality Conditioner) in a Single-Phase Distribution System.
Pradeep Kandukuri, Kumar K. Vinay
doaj   +1 more source

Voltage Sag Detection and Compensation Signal Extraction for Power Quality Mitigation Devices

open access: yesEnergies, 2023
The importance of voltage quality is continuously increasing in electrical networks due to the rising manufacturing costs resulting from system faults and disturbances in utility dynamics. Researchers generally prefer reference-frame transformation-based
Lutfu Saribulut, Arman Ameen
doaj   +1 more source

Cause, Classification of Voltage Sag, and Voltage Sag Emulators and Applications: A Comprehensive Overview

open access: yesIEEE Access, 2020
The large-scale application of wind power and photovoltaic power solves the energy crisis and alleviates the environmental problems caused by the use of conventional energy.
Yang Han   +5 more
doaj   +1 more source

Study of Voltage Sag Detection and Dual-Loop Control of Dynamic Voltage Restorer

open access: yesFrontiers in Energy Research, 2022
Voltages sags have become the major issue that prevents the customers from getting high-quality power supply, and the dynamic voltage restorer (DVR) is considered an effective way to solve this issue.
Shuzheng Wang, Shaowen Zhang, Xianyun Li
doaj   +1 more source

Modeling of Double Stage Photovoltaic Inverter System with Fast Delayed Signal Cancellation for Fault Ride-Through Control Application in Microgrids

open access: yesEnergies, 2022
This research presents a secondary control for a grid-supporting microgrid with photovoltaics sources to guarantee grid code compliance and ancillary services.
Elutunji Buraimoh, Innocent E. Davidson
doaj   +1 more source

Fast and accurate voltage sag detection algorithm

open access: yesInternational Journal of Electrical Power & Energy Systems, 2022
Voltage sags may affect the accurate operation of several equipment connected to power systems. A typical example is the doubly-fed induction generator (DFIG), which is often employed in wind energy conversion systems (WECSs). Since the stator windings are directly connected to the power grid, the generator becomes very sensitive to such power quality ...
Kleber de Araújo Lima, Francisco   +4 more
openaire   +2 more sources

Low-voltage ride through of multi-port power electronic transformer

open access: yesiEnergy, 2022
A low-voltage ride-through (LVRT) control strategy for the multi-port power electronic transformer (PET) based on power co-regulation is proposed.
Wusong Wen   +3 more
doaj   +1 more source

Application of Dynamic Voltage Restorer through HHO Algorithm for Safe and Sustainable Operation of Electrical Distribution System [PDF]

open access: yesE3S Web of Conferences, 2023
The voltage dynamic recovers steady-state, transient, and dynamic responses by protecting electrical equipment against unbalances, swells, and voltage sags and provides safe operation.
Awaar Vinay Kumar   +4 more
doaj   +1 more source

A New Method of Voltage Sag and Swell Detection [PDF]

open access: yesIEEE Transactions on Power Delivery, 2007
The fundamental voltage, current, and phase angle are required for a wide variety of power system applications. An algorithm that is capable of calculating or estimating these quantities in real time, in the presence of distorted waveforms, finds application in diverse areas of power systems.
Naidoo, R., Pillay, Pragasen
openaire   +2 more sources

A voltage detection method based on dq transformation and symmetric component method

open access: yesGong-kuang zidonghua, 2018
In view of problem that fault type and phase of asymmetric voltage sag could not be quickly identified by traditional voltage sag detection algorithm, a voltage detection method based on dq transformation and symmetric component method was proposed ...
WANG Jianyu
doaj   +1 more source

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