Results 131 to 140 of about 290 (157)
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A supervisory hierarchical fuzzy controller for dynamic voltage restorer (DVR)
2015 23rd Iranian Conference on Electrical Engineering, 2015Dynamic voltage restorer (DVR) is a static Var compensator that plays an important role in voltage sag/swell compensation, especially during faults. This paper proposes a novel fuzzy logic based control structure to improve DVR performance. The proposed structure consists of two layers, namely, the lower or main layer and the upper or supervisor layer.
Sajjad Solat +2 more
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A Single-Phase Quasi Z-Source Dynamic Voltage Restorer(DVR) [PDF]
The Transactions of the Korean Institute of Power Electronics, 2010 This paper deals with a single-phase dynamic voltage restorer(DVR) with a quasi Z-source topology. The proposed system based on a single-phase quasi Z-source PWM ac-ac converter which have features such as the input voltage and output voltage are sharing ground, and input current operates in continuous current mode(CCM).
Young-Gook Jung, Young-Cheol Lim
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A novel technique for mitigation of voltage sag/swell by Dynamic Voltage Restorer (DVR)
2010 IEEE International Conference on Electro/Information Technology, 2010This paper deals with modeling and simulation technique of a Dynamic Voltage Restore (DVR). The DVR is a dynamic solution for protection of critical loads from voltage sags / swells. The DVR restores constant load voltage and voltage wave form by injecting an appropriate voltage.
R. A. Kantaria +2 more
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A robust control algorithm for self supported dynamic voltage restorer (DVR)
India International Conference on Power Electronics 2010 (IICPE2010), 2011The protection to the sensitive loads from voltage sags, swells and harmonics can be achieved using the dynamic voltage restorer (DVR) in a cost effective manner. In this paper, a new control algorithm based on unit templates and instantaneous symmetrical component theory along with complex Fourier series is used for the generation of reference ...
Parag Kanjiya +2 more
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The Role Of Dynamic Voltage Restorer (DVR) in improving power quality
2016 2nd International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB), 2016One of the control strategies of DVR (Dynamic Voltage Restorer) is minimum energy control strategy which is explained in this paper. The main duty of power system is to supply their customers a uninterruptable power supply at all the times, but in practice it is not happening.
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A waveform synthesis technique for voltage sag compensation using dynamic voltage restorer (DVR)
2006 IEEE Power Engineering Society General Meeting, 2006This paper presents the development of a novel waveform synthesis technique for effective voltage sag compensation for multilevel inverter based dynamic voltage restorer (DVR). An effective control algorithm for calculation of reference compensating voltages based on PQR power theory together with space vector modulation (SVM) technique is implemented ...
V. Immanuel, G. Yankanchi
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Dynamic Voltage Restorer(DVR) with a Z-Source AC Converter Topology
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2010This paper proposes a new type of voltage sag-swell compensator based on a Z-source AC-AC converter. The proposed topology employs a pulse width modulation (PWM) Z-source AC-AC converter along with a injection transformer. A safe commutation strategy is used to eliminate voltage spikes on switches without snubber circuit. During a voltage sag or swell,
Young-Cheol Lim, Young-Gook Jung
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Modeling and Simulation of Dynamic Voltage Restorer (DVR) Based on Hysteresis Voltage Control
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society, 2007Dynamic Voltage Restorers are utilized to protect sensitive loads from voltage sags and swells which take place in the distribution systems. In this paper, a Dynamic Voltage Restorer (DVR) based on hysteresis voltage control is proposed. The DVR is modeled using Simulink'SimPowerSystem Toolbox.
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MODELLING AND SIMULATION FOR VOLTAGE SAGS/SWELLS MITIGATION USING DYNAMIC VOLTAGE RESTORER (DVR)
2022Quality of supply plays a major role in power system. There are various power quality problems which affects operation of sensitive loads. As technology is improved there are many devices whose performance is sensitive to the power quality of supply.
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