A Review on Methods of Power Quality Improvement by using DVR |
Author(s): |
Sagar N. Deo , Matoshri College of Engineering and Research Centre; Prof. S. S. Hadpe, Matoshri College of Engineering and Research Centre |
Keywords: |
Power quality, custom power devices, DVR, voltage sag and supply voltage unbalance |
Abstract |
Power quality is one of 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 nonstandard voltage, current or frequency that results in a failure of end use equipment’s. Sensitive industrial loads and utility distribution networks suffer from various types of outages and service interruptions which may result in a significant financial loss. To improve the power quality, custom power devices are used. The device considered in this work is Dynamic Voltage Restorer. This thesis presents modeling, analysis and simulation of a Dynamic Voltage Restorer (DVR) constructed in Simulink environment. In this work, composite observer based controller are used for the control purpose. Here, different supply voltage conditions are considered for linear loads and sensitive load. The major problems dealt here are voltage sag, voltage and voltages unbalances. The role of DVR to compensate load voltage is investigated during the different supply conditions. |
Other Details |
Paper ID: IJSRDV5I51087 Published in: Volume : 5, Issue : 5 Publication Date: 01/08/2017 Page(s): 1138-1141 |
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