Results 21 to 30 of about 2,083 (260)

Software Tool for Real-Time Power Quality Analysis

open access: yesAdvances in Electrical and Computer Engineering, 2013
A software tool dedicated for the analysis of power signals containing harmonic and interharmonic components, unbalance, voltage dips and voltage swells is presented.
CZIKER, A. C.   +2 more
doaj   +1 more source

Enhancement of DFIG-Wind Turbine’s LVRT capability using novel DVR based Odd-nary Cascaded Asymmetric Multi-Level Inverter

open access: yesEngineering Science and Technology, an International Journal, 2017
One of the most prominent issues relevant to Doubly Fed Induction Generator (DFIG) is augmentation of its Low Voltage Ride Through (LVRT) capability. Dynamic Voltage Restorer (DVR) is a series kind of Distributed-Flexible AC Transmission Systems (D-FACTS)
A.D. Falehi, M. Rafiee
doaj   +1 more source

Feed-Forward Control Strategy for the VSC of DVR for Smooth and Clean Power Flow to Load [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2012
VSC (Voltage Source Converter) feed-forward control strategy of DVR (Dynamic Voltage Restorer) for an in-phase voltage injection scheme is proposed in this paper to tackle not only voltage sags and swells in the utility supply but also phase jumps as ...
Aamir Hanif   +2 more
doaj  

Dynamic Voltage Restorer as a Solution to Voltage Problems in Power Systems: Focus on Sags, Swells and Steady Fluctuations

open access: yesEnergies, 2023
In this study, the author presents the results of a survey on the utilisation of a dynamic voltage restorer (DVR) in power systems to alleviate voltage problems that result in sags, swells and fluctuations in voltage outside the required steady limits. A
Nhlanhla Mbuli
doaj   +1 more source

Resilient Operation of PV Systems in Weak Grids by adjusting of Flexible Grid Conditions through Artificial Neural Networks (ANNs) to Improve Power Quality [PDF]

open access: yesE3S Web of Conferences
The solar Photovoltaic Array (PVA) producing unit reported in this study is conducted to an inadequate utility grid for distribution. A boost converter using the incremental conductance (InC) approach optimizes PVA power. The weak grid can be affected by
Madhuri Mora, Gatla Ranjith Kumar
doaj   +1 more source

Compensation of Sag and Swell Voltage by Using Dynamic Voltage Restorer

open access: yesINTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2022
There is an introduction to the dynamic voltage restorer in this paper that discusses voltage sags and swell. Also, it is about the compensation of voltage sag and swells. The power quality requirement is one of the most important issues. The power quality problem includes voltage sag, swell, notch, spike, transient, etc.
openaire   +1 more source

PMU and DVR based Power System Monitoring, Controlling and Voltage sag Compensation [PDF]

open access: yesITM Web of Conferences, 2020
The power system network is becoming dense and much more complex. Dynamic and continuous monitoring of the power system network is required to avoid power outages. Phasor Measurement Unit (PMU) is one such device that provides state estimation parameters
Chalwadi Abhishek, M Kiruthika, S Bindu
doaj   +1 more source

A Reliable Data Delivery Mechanism for Grid Power Quality Using Neural Networks in Wireless Sensor Networks

open access: yesSensors, 2010
Power grids deal with the business of generation, transmission, and distribution of electric power. Current systems monitor basic electrical quantities such as voltage and current from major pole transformers using their temperature.
Sanggil Kang, Yujin Lim, Hak-Man Kim
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

ADVANCED DVR CONTROL WITH IOT FOR VOLTAGE SAG COMPENSATION IN WIND-CONNECTED POWER GRIDS

open access: yesInternational Journal of Advances in Signal and Image Sciences
An efficient approach for enhancing Power Quality (PQ) in wind grid-connected systems is proposed in this work. The proposed solution integrates an Internet of Things (IoT)-based monitoring system with a Dynamic Voltage Restorer (DVR) to mitigate voltage
R. C Ilambirai   +3 more
doaj   +1 more source

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