Mitigation Voltage Sag in Power System by Static Synchronous Compensator
- 1 Division of Electrical Engineering, Faculty of Engineering at Si Racha, Kasetsart University, 199 M.6, Tungsukhla, Si Racha, Chonburi, 20230, Thailand
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.
DOI: https://doi.org/10.3844/ajassp.2010.1558.1561
Copyright: © 2010 Prechanon Kumkratug. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Power system
- transient stability
- Flexible AC Transmission (FACTS)
- synchronous
- Unified Power Flow Controller (UPFC)
- thyristor controlled phase shifter
- High Voltage Direct Current (HVDC)
- leakage reactance
- control strategy
- equivalent
- complex power
- voltage sag
- Single Machine Infinite Bus (SMIB)