Abstract
Problem statement: One of the major problems in power system is the over line current from short circuit effect. It may cause in the electrical apparatus outages. Approach: Static Synchronous Series Compensator (SSSC) is a power electronic based device that has the capability of controlling the line current. This study applies the SSSC to decrease the over line current in power system during dynamic state. To verify the effect of the SSSC on over line current reduction, the mathematical model of power system equipped with a SSSC is presented. The variation curve of line current of the faulted system with without and with a SSSC is tested and compared in various cases. Results: The line current of the system without a SSSC is continuously oscillation and the maximum value is much more than the system with a SSSC. Conclusion: SSSC can decrease over line current in power system from short circuit effect.
Highlights
The short circuit in power system is unavoidable situation and it provides the high current
A Static Synchronous Series Compensator (SSSC) is a member of the Flexible AC Transmission System (FACTS) family that is connected in series with power system
This study presents the method of decreasing over line current in power system from short circuit effect by using a SSSC
Summary
The short circuit in power system is unavoidable situation and it provides the high current. One of the major problems in power system is the over line current from short circuit effect (Barbuy et al, 2009; Coe and Laosethakul, 2010; Subramanian et al, 2010; Barnes et al, 2009) They have proposed many methods to improve stability of power system such as load shedding, High Voltage Direct Current (HVDC), Flexible AC Transmission System (FACTS), (Matondang and Jambak, 2010; El-Shennawy et al, 2010; Hannan et al, 2009; Magaji and Mutafa, 2009; Wong and Lee, 2009; Metkar and Talbar, 2010; Mustafa and Magaji, 2009). The effect of SSSC on reduction of over line current is investigated in various cases
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