Results 21 to 30 of about 737,182 (294)

Simple, fast detector for voltage dip or voltage swell

open access: yesElectronics Letters, 2007
A simple, fast detection scheme for voltage dip and voltage swell is presented. Applying a simple relay and lowpass filter to the supply voltage signal, an in-phase fixed magnitude reference signal with very low total harmonic distortion can be generated.
K.M. Tsang, W.L. Chan
openaire   +1 more source

Compansation of Electrical Voltage in Distribution System by Dynamic Voltage Restorer

open access: yesJAREE (Journal on Advanced Research in Electrical Engineering), 2019
Electrical ac power systems consist of generation systems, transmission and distribution networks. The large three phase industrial loads at various distribution and transmission voltages as well as single-phase residential and commercial loads are ...
Soe Soe Ei Aung, May Phone Thit
doaj   +1 more source

Compensation of Sag and Swell Voltage by using Dynamic Voltage Restorer [PDF]

open access: yesInternational Journal of Trend in Scientific Research and Development, 2019
The increase use of modern sensitive and sophisticated loads connected to distribution system causes various problems to the system. The major problems are voltage sag and swell, there is need to compensate it .Today most of the distribution companies are using power semiconductor based devices for improving power quality.
Diksha Wasnik   +2 more
openaire   +1 more source

ПРИСТРІЙ ДЛЯ КОРИГУВАННЯ ФОРМИ НАПРУГИ МЕРЕЖІ, ЯКА ЖИВИТЬ ПОТУЖНИЙ КЕРОВАНИЙ ВИПРЯМЛЯЧ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2022
A circuit solution of a device for correcting the waveform of the mains voltage, which feeds a controlled semiconductor rectifier of comparable power, is proposed.
О.І. Чиженко   +1 more
doaj   +1 more source

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

Performance of Modification of a Three Phase Dynamic Voltage Restorer (DVR) for Voltage Quality Improvement in Electrical Distribution System [PDF]

open access: yes, 2011
There is growing concern over power quality of ac supply systems. Power quality can be defined as the ability of utilities to provide electric power without interruption.
Omar, Rosli   +5 more
core   +1 more source

measurement of dips and swells in voltage.pdf

open access: yes, 2022
 The different power quality phenomena may have characteristics quite different from each other in terms of amplitude, duration, repetition, effects on the system elements, perception of users, etc.
ganesh E N (12315038)
core   +1 more source

New Topology of a Three Phase Dynamic Voltage Restorer (DVR) for Voltage Swells Mitigation in Electrical Distribution System [PDF]

open access: yes, 2011
This paper proposed three topologies of a three phase dynamic voltage restorer (DVR), these new topologies comprises of filtering schemes, dc-link capacitor and three phase four wire of a three phase transformer connection.
Omar, Rosli, Rahim, Nasrudin
core   +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  

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