Voltage Sag Compensation Using Dynamic Voltage Restorer 
D.Arulselvam1, J.Harinarayanan2, M.Rajasekaran3, M.Subramanian4
1D.Arulselvam, Assistant Professor Department of Electrical and Electronics Engineering, Sri Sairam Engineering College, Chennai, Tamilnadu, India.
2J.Harinarayanan, Assistant Professor Department of Electrical and Electronics Engineering, Sri Sairam Engineering College, Chennai, Tamilnadu, India.
3M.Rajasekaran, Assistant Professor Department of Electrical and Electronics Engineering, Sri Sairam Engineering College, Chennai, Tamilnadu, India.
4M.Subramanian, Assistant Professor Department of Electronics and Instrumentation Engineering, Sri Sairam Engineering College, Chennai, Tamilnadu, India.
Manuscript received on February 05, 2019. | Revised Manuscript received on August 14 2019. | Manuscript published on August 30, 2019. | PP: 3571-3574 | Volume-8 Issue-6, August 2019. | Retrieval Number: F9351088619/19©BEIESP | DOI: 10.35940/ijeat.F9351.088619
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Power quality plays a very important vital role in the modern utility grid where sensitive loads are employed. Equipment damage, temporary shutdowns, product quality degradation and Voltage Sag are the major problem associated with power quality. Dynamic Voltage Restorer (DVR) is a powerful device which is used to improve voltage mitigation of weak buses associated in a multi-bus system. This paper incorporates the functional performance of DVR during voltage sag in the power system. Penetrating a voltage of required magnitude and frequency to restore the voltage across the load within the desired amplitude is the main objective of DVR. The proposed work based on modeling and simulation of DVR, in a closed-loop control of an eight bus system. Voltage compensation is done effectively using DVR in the Closed loop FLC controlled system and its analyzed with PID Controlled system. The simulation result shows Closed loop FLC system using DVR is observed to be faster than PID controlled systems.
Keywords: DVR, VoltageSag, FLC, Multibus System, PID.