Case Study of a Four Machine Eleven Bus System Using U.P.F.C.

International Journal of Electrical and Electronics Engineering
© 2014 by SSRG - IJEEE Journal
Volume 1 Issue 3
Year of Publication : 2014
Authors : Niyati Gulati, Arvind Sharma, Anil Kumar, Ankhi Gulati
How to Cite?

Niyati Gulati, Arvind Sharma, Anil Kumar, Ankhi Gulati, "Case Study of a Four Machine Eleven Bus System Using U.P.F.C.," SSRG International Journal of Electrical and Electronics Engineering, vol. 1,  no. 3, pp. 6-10, 2014. Crossref,


The same assumptions used for a system of one machine connected to an infinite bus often assume valid for a multi machine system: Mechanical power input is constant. Damping or asynchronous power is negligible. Constantvoltage behind-transient model for the synchronous machines is valid. The mechanical rotor angle of a machine coincides with the angle of the voltage behind the transient reactance. Passive impedances represent loads. Now taking the cases when small signal perturbation at time instant 15 sec is there and also UPFC is there in the circuit. Hence the comparison of the cases with and without UPFC.


PSS-Power System Stabilizer, FACTFlexible Alternating Current Transmission, AVRAutomatic Voltage Regulator.


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