Simple, fast detector for voltage dip or voltage swell
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
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Compansation of Electrical Voltage in Distribution System by Dynamic Voltage Restorer
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
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Compensation of Sag and Swell Voltage by using Dynamic Voltage Restorer [PDF]
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
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ПРИСТРІЙ ДЛЯ КОРИГУВАННЯ ФОРМИ НАПРУГИ МЕРЕЖІ, ЯКА ЖИВИТЬ ПОТУЖНИЙ КЕРОВАНИЙ ВИПРЯМЛЯЧ
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
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Software Tool for Real-Time Power Quality Analysis
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
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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
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Performance of Modification of a Three Phase Dynamic Voltage Restorer (DVR) for Voltage Quality Improvement in Electrical Distribution System [PDF]
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
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measurement of dips and swells in voltage.pdf
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)
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New Topology of a Three Phase Dynamic Voltage Restorer (DVR) for Voltage Swells Mitigation in Electrical Distribution System [PDF]
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
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Feed-Forward Control Strategy for the VSC of DVR for Smooth and Clean Power Flow to Load [PDF]
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
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