ESTIMATION OF TOTAL HARMONIC DISTORTION (THD) OF ABATTERY SUPPORTED DYNAMIC VOLTAGE RESTORER (DVR) CONNECTED TO AN SECONDARY DISTRIBUTION NETWORKWITHANON-LINEAR LOAD

Authors

  • Chapa Udayakiran *1M. Tech, JNTUK University College of Engineering, Vizianagaram Campus(JNTUK-UCEV) Author
  • Sk.Hussain Vali Assistant Professor, EEE Department, JNTUK University College of Engineering Author

Keywords:

DVR, abc to dqo transformattion ,voltage sag, voltage swell, FFT

Abstract

In This paper describes about major power quality problems-voltage quality and harmonics[2], inpower systems, enormously effects on sensitive loads[10], these loads can be protect by introducingcustom power device[14] called Dynamic Voltage restorer (DVR), this is connected in series[9] withthe line, it can inject/absorb voltage [8][9]with the help of self supported capacitor[12] -inject voltage in quadrature with the line current during sag[2] by adding a Battery energy storage system-inject voltage in phase with Vs. So that voltage source converter rating is reduced, gate pulses should be generated based on synchronous reference frame theory(SRF) and by applying FFT analysis to find the THD.

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Published

2016-10-31

Issue

Vol. 3 No. 10 (2016): October

Section

Articles