Stability Improvement of Power System by Using Fuzzy Coordinated Static Var Compensator

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2015 by IJETT Journal
Volume-25 Number-1
Year of Publication : 2015
Authors : Ashish Kumar Choubey, Arti Bhandakkar


Ashish Kumar Choubey,Arti Bhandakkar" Stability Improvement of Power System by Using Fuzzy Coordinated Static Var Compensator", International Journal of Engineering Trends and Technology (IJETT), V25(1),9-14 July 2015. ISSN:2231-5381. published by seventh sense research group

In emerging power systems, enlarged communication often lead to the situations where the structure no longer remains in secure operating region. The flexible Ac transmission system (FACTS) controllers can take part in an important role in the power system security enhancement. However, due to high capital investment, it is necessary to locate these controllers optimally in the power system. Static Var Compensator (SVC) is a shunt type FACTS device which is used in power system primarily for the purpose of voltage and reactive power control. In this paper, a fuzzy coordinated supplementary controller Static Var Compensator (SVC) is developed. The static var compensators SVC are FACTS devices in shunt connection which can be used for power system enhancement. The paper investigates a modern approach for SVC control using fuzzy logic based controller. The simulations and effects of shunt compensation on power system transmission stability are also presented. The performances of fuzzy based control of the SVC are compared with a conventional compensation and the advantages of modern control to offer significant damping to the system oscillations are highlighted. Matlab Simulink environment was used for system modeling and simulations.


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FACTS, Fuzzy logic controllers, Stability, SVC.