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Volume & Issue no: Volume 4, Issue 1, January - February 2015

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Title:
Transient Stability Enhancement of a Multi Machine Power System Using SVC Controller
Author Name:
Poonam Singhal, Parmod Kumar Madotra
Abstract:
Abstract Sudden change in load level affects the stability of power system. For stable operation of Power System, stability is an important concept. Stability of the system generally depends upon type of disturbance, system operating conditions. Stability can be defined as the ability of system to maintain synchronism or to retain some steady state value after occurrence of fault in the system. A system is said to be synchronously stable (i.e., retain synchronism) for a given fault if the system variables settle down to some steady-state values with time, after the fault is removed. For the improvement of transient stability FACTS devices are used to damp out system oscillation. This paper presents the model of a SVC (Static VAR Compensator) which is controlled externally by an Auxiliary Controller for damping power system oscillations. Different auxiliary controller structures have been designed & controller’s parameters have been optimized by using Ziegler-Nichols close loop tuning method. Simulation has been carried out with & without SVC Auxiliary Controllers under three phase fault contingencies. Comparison has been carried out without, with SVC & with SVC Auxiliary controllers. Keywords: SVC, Transient Stability, Auxiliary Controller, Ziegler Nichols, FACTS
Cite this article:
Poonam Singhal, Parmod Kumar Madotra , " Transient Stability Enhancement of a Multi Machine Power System Using SVC Controller" , International Journal of Emerging Trends & Technology in Computer Science (IJETTCS) , Volume 4, Issue 1, January - February 2015 , pp. 193-197 , ISSN 2278-6856.
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International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
ISSN 2278-6856
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