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M.Tech / M.E / PhD Thesis | Electrical Engineering | India | Volume 4 Issue 11, November 2015
Comparative Studies of Control Technique in Dynamic Voltage Restorer for Power Quality Improvement
Shaik Babul Saheb | Nakka Narasimha Rao
Abstract: Power quality is one of the most important worry in the present power system. When the voltage sag, voltage swell, harmonic content etc. , occurs then the key effect on the industrial consumer loads. To manage these events several custom power apparatuses are used. DVR is the power apparatus is utilized to improve the voltage stability i. e. , to control the power quality situations in the power system. DVR is a custom power device used for mitigation of voltage sag, voltage swell. DVR is the grouping of voltage source inverter (VSI), booster transformer, filter and a DC energy source. DVR is to add voltage in series and in synchronism with the normal voltages to give back the voltage influences and improving power quality. There is several control techniques are presented for the operation of DVR. Here space vector PWM (SVPWM) control technique is used to produce the switching pulses for DVR. The projected system is designed in MATLAB software and the result shows the significance of DVR for better power quality in distribution systems.
Keywords: power quality, custom power devices, Voltage source inverter, DVR, control techniques for DVR, space vector PWM control, MATLAB
Edition: Volume 4 Issue 11, November 2015,
Pages: 410 - 414
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