Reduction of Over Line Current in Power System from Short Circuit Effect Using Static Synchronous Series Compensator | Science Publications

American Journal of Applied Sciences

Prechanon Kumkratug¹ 

关键词: Over line current;    Power system stability;    FACTS devices;    static synchronous;    Static Synchronous Series Compensator (SSSC);    Single Machine Infinite Bus (SMIB);    transformer leakage;    voltage injection;    voltage source;    short circuit;    High Voltage Direct Current (HVDC);    Flexible AC Transmission System (FACTS);   

DOI  :  10.3844/ajassp.2011.129.133

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: One of the major problems in power system is the over line currentfrom short circuit effect. It may cause in the electrical apparatus outages. Approach: StaticSynchronous Series Compensator (SSSC) is a power electronic based device that has the capability ofcontrolling the line current. This study applies the SSSC to decrease the over line current in powersystem during dynamic state. To verify the effect of the SSSC on over line current reduction, themathematical model of power system equipped with a SSSC is presented. The variation curve of linecurrent 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 maximumvalue is much more than the system with a SSSC. Conclusion: SSSC can decrease over line current inpower system from short circuit effect.

【 授权许可】

Unknown