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International Journal of Scientific Development and Research - IJSDR
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Paper Title: A DVR Implementation for Harmonic Compensation in Distribution Systems by using Series Voltage source Inverter
Authors Name: Vinay kumar Kuchana , S Mayuri
Unique Id: IJSDR1712012
Published In: Volume 2 Issue 12, December-2017
Abstract: Dynamic voltage restorers (DVRs) are now becoming more established in industry to reduce the impact of voltage sags to sensitive loads. However, DVRs spend most of their time in standby mode, since voltage sags occur very infrequently, and hence their utilization is low. In principle, it would be advantageous if the series-connected inverter of a DVR could also be used to compensate for any steady-state load voltage harmonics, since this would increase the power quality “value-added” benefits to the grid system. However, before this can be done, consideration must be given to the control of steady-state power through the DVR, the increased losses, and the low modulation depths at which the scheme must operate to achieve acceptable harmonic compensation performance. This paper presents a selective harmonic feedback control strategy that can be easily added to medium-voltage DVR systems to provide voltage harmonic compensation capabilities with minimal effect on the sag compensation performance of the basic DVR. Series voltage inverter operation is controlled by multiple pulse width modulation. The output of the Series voltage Source inverter is controlled by using pulse width modulation, generated by comparing a triangular wave signal with an adjustable DC reference and hence the duty cycle of the switching pulse could be varied to synthesize the required conversion. DVR can be considered to be cost effective when compared with other compensation devices. But the use of DC link capacitor in the conventional DVR will increase the size, weight and the cost of the entire system which inhibits widespread use of DVR The dynamic voltage restorer is one of the modern devices used in distribution systems to protect consumers against sudden changes in voltage amplitude. The simulation results are obtained using MATLAB/SIMULINK software.
Keywords: Active filter, dynamic voltage restorer, harmonics, medium voltage, series transformer, stationary frame control.
Cite Article: "A DVR Implementation for Harmonic Compensation in Distribution Systems by using Series Voltage source Inverter ", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.2, Issue 12, page no.76 - 86, December-2017, Available :http://www.ijsdr.org/papers/IJSDR1712012.pdf
Downloads: 00016029
Publication Details: Published Paper ID: IJSDR1712012
Registration ID:170870
Published In: Volume 2 Issue 12, December-2017
DOI (Digital Object Identifier):
Page No: 76 - 86
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631

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