@article {10.3844/ajassp.2010.1558.1561, article_type = {journal}, title = {Mitigation Voltage Sag in Power System by Static Synchronous Compensator}, author = {Kumkratug, Prechanon}, volume = {7}, year = {2010}, month = {Dec}, pages = {1558-1561}, doi = {10.3844/ajassp.2010.1558.1561}, url = {https://thescipub.com/abstract/ajassp.2010.1558.1561}, abstract = {Problem statement: The disturbance in power system is unavoidable situation. It cause in voltage sag in power system. Approach: This study applied the STATCOM to mitigate voltage of the system. The mathematical model of power system equipped with a STATCOM is systematically derived. The presented mathematical model is shown how it effects on voltage sag improvement. The simulation results are tested on a Single Machine Infinite bus. The proposed method is equipped in sample system with severe disturbance. The variation voltage of the system without and with a STATCOM is plotted and compared. Results: It was found that the system without a STATCOM has high voltage variation especially voltage sags whereas with a STATCOM the system voltage has small voltage sages. Conclusion: From the simulation results, the STATCOM can mitigate voltage of power system.}, journal = {American Journal of Applied Sciences}, publisher = {Science Publications} }