08-16-2017, 09:23 PM
Authors:
Sunil Kumar Gupta, H. P. Tiwari, Rajesh Kumar
Abstract:
Voltage sag are the major source of power quality related problems. Dynamic Voltage restorers (DVR) are used to protect sensitive loads from the effects of voltage sag on the distribution feeder. It injects voltage in series with the system voltage to compensate the sag. This paper presents a power system operation with PI controller approach. Total Harmonics Distortion (THD) is calculated for the system in absence of compensation scheme next THD is evaluated when DVR is in operation and results obtain for both cases are compared. The impact of DVR operation on THD is analyzed using MATLAB software.
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http://jee.ro/articles/WB1245135755W4a37438b455b8.pdf