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Voltage Sag Mitigation by Parasitic Boost Circuit


Mr. Pramod V Chaudhary , SSSUTMS,Bhopal,Madhay Pradesh, India.; Prof. Alka Thakur, SSSUTMS,Bhopal,Madhay Pradesh, India.


DySC, Parasitic Boost Circuit


Many customer power devices have been proposed to mitigate such voltage sags for sensitive loads. The most studied voltage regulator topologies can generally categorized into two groups: the inverter-based regulator and direct ac–ac converters. Series-connected devices (SD) are voltage-source inverter-based regulators and an SD compensate for voltage sags by injecting a missing voltage in series with the grid. There are lots of SD topologies, and key features related to the evaluation of a certain SD topology are the cost, complexity, and compensation ability. Dynamic voltage restorer (DVR) is a commonly used SD and has been widely studied. Different types of DVRs are discussed. Four typical DVR system topologies are investigated and experimentally compared. The overall evaluation has shown that DVR with no storage and load-side-connected shunt converter ranks the highest as it can compensate for long-duration deep sags at a relatively low complexity and cost.

Other Details

Paper ID: IJSRDV5I41434
Published in: Volume : 5, Issue : 4
Publication Date: 01/07/2017
Page(s): 1970-1973

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