UPFC for Mitigation of Voltage Sag and Swell in Power System

Lakshmi Chuncha*, Shekhappa G. Ankaliki **
*-** Department of Electrical & Electronics Engineering, SDM College of Engineering and Technology, Dharwad, Karnataka, India.
Periodicity:November - January'2020
DOI : https://doi.org/10.26634/jps.7.4.17505

Abstract

This paper presents the use of Unified Power Flow Controller (UPFC) for mitigation of voltage sag and swell in power system. The power quality issues such as voltage fluctuations, power frequency variations, harmonics, voltage sag and swell, noise, etc., causes low power issue, low potency, enlarged losses in transmission and distribution lines, failure of electrical equipment and interference weakness with communication system. It is important to mitigate these reactive current parts and harmonic, which is done by Active Power filters. Also, voltage in all buses may not be same due to changes in load. To resolve the above issues UPFC device is used in this work. UPFC is one of the types of FACTS devices which are very useful in voltage compensation. UPFC is a three-phase device, with a combination of series and shunt active power filter with common DC link. It is employed to eliminate voltage swell and sag compensation in power system, current harmonics, compensate reactive power etc. In this paper, MATLAB (SIMULINK) based UPFC simulation model is developed and analyzed for voltage swell and sag compensation in distribution system.

Keywords

Facts Controller, Power System, SIMULINK, Voltage Sag and Swell, UPFC, Voltage Stability.

How to Cite this Article?

Chuncha, L., and Ankaliki, S. G. (2020). UPFC for Mitigation of Voltage Sag and Swell in Power System. i-manager’s Journal on Power Systems Engineering, 7(4), 22-28. https://doi.org/10.26634/jps.7.4.17505

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