Results 261 to 270 of about 3,598,668 (295)

Dynamic Voltage Restorer with Compound Compensation Method

Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering, 2019
To realize the quick compensation of the sag voltage by the dynamic voltage restorer (DVR), reduce the influence on the sensitive load. This paper proposes a compound compensation based on pre-sag compensation and minimum energy compensation. Firstly, the compensation phasor diagrams of pre-sag compensation and minimum energy compensation are analyzed,
Dingzhong Shi, Hongwen Liu, Zhijie Song
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Fault current interruption by the dynamic voltage restorer

2013 IEEE Power & Energy Society General Meeting, 2013
This paper introduces and evaluates an auxiliary control strategy for downstream fault current interruption in a radial distribution line by means of a dynamic voltage restorer (DVR). The proposed controller supplements the voltage-sag compensation control of the DVR.
Firouz Badrkhani Ajaei, Shahrokh Farhangi, Reza Iravani   +2 more
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Mitigation of Voltage Sag And Voltage Swell By Dynamic Voltage Restorer

2019 International Conference on Intelligent Computing and Control Systems (ICCS), 2019
This work deals with reducing major voltage flickering problems by using dynamic voltage restoration and SPWM technique it helps to improve the power quality of the system. Even though voltage swag and swell occurs in transmission as well as distribution side but the problem is resolved only at the distribution side.
Pujarchana Swain, Basanta K. Panigrahi, Rama Prasanna Dalai, Jyotiranjan Mohnaty, Sidhanta S. Medinray, Shakti Prasad Ray   +5 more
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Dynamic Voltage Restorer as a sag mitigator and harmonic restorer

2008 IEEE International Conference on Sustainable Energy Technologies, 2008
This paper presents a generalized control algorithm for voltage disturbance extraction and mitigation. The proposed mitigating device is the dynamic voltage restorer (DVR). A DVR is commonly used to mitigate the voltage sags. In this paper the proposed DVR can compensate the voltage unbalance and mitigate harmonics in the time of normal operation as ...
K. Chandrasekaran, P.A. Venkatachalam, Mohd Noh Karsiti   +2 more
openaire   +1 more source

Dynamic voltage restorer based on fuzzy logic control for voltage sag restoration

International Conference on Sustainable Energy and Intelligent Systems (SEISCON 2011), 2011
Power quality problems such as voltage sags are presently impor tant issues in the industrial field. The dynamic voltage restorer (DVR) is a series compensation device that mitigates voltage sag problems. Due to the nonlinearity of the D VR dynamic character istics, the compensating performance of the D VR is affected much by its control strategy.
D. Rajasekaran, S.S. Dash, D.R.A. Teja
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The impact of Dynamic Voltage Restorer on Voltage Sag Mitigation

IET Chennai 3rd International Conference on Sustainable Energy and Intelligent Systems (SEISCON 2012), 2012
Power quality is one of the major concerns in the present era. It has become important, especially, with the introduction of sophisticated devices, whose performance is very sensitive to the quality of power supply. Power quality problem is an occurrence manifested as a non-standard voltage, current or frequency that results in a failure of end use ...
M. Venmathi, L. Ramesh
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Transformerless Dynamic Voltage Restorer for voltage sag mitigation

2016 Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE), 2016
Dynamic Voltage Restorers are identified to be cost effective solution for protecting sensitive loads from voltage related power quality issues. The extension of cost reduction and efficiency can be improved by eliminating the injection transformer. This paper discusses a transformer-less dynamic voltage restorer based on three-single phase Voltage ...
V. Ansal, K. Ravikumar, P. Parthiban
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Mitigation of Voltage Sags and Swells by Dynamic Voltage Restorer

Advanced Materials Research, 2013
This paper presents the modelling and simulation of Dynamic Voltage Restorer (DVR) for mitigation of voltage sags and swells which are the major problems and issues on non linear loads.The Dynamic Voltage Restore (DVR) has become popular as a cost effective solutions for the protection of sensitive loads from voltage sags and swells..
Shakti Prasad Mishra, Lisby Varghese, J. Preetha Roselyn, D. Devaraj   +3 more
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Necessity of DC Voltage Storage for Dynamic Voltage Restorer

Asian Journal of Electrical Sciences, 2012
Problems of voltage sags and swells and its severe impact on sensitive load is well known. To solve the problems custom power devices are used, one of those devices is DVR which is most efficient and effective modern custom power device used in power distribution network.
Swapnil R. Borakhade, U. Anjali
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Neural Network Control for Dynamic Voltage Restorer

IEEE Transactions on Industrial Electronics, 2004
The dynamic voltage restorer is a power electronic device which has demonstrated its ability to protect sensitive loads from the effects of voltage sags. This compensator is connected in series with the distribution feeder. A neural network control is proposed. Simulation results are shown to validate these control methods.
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