Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.503.509MailahN.F.BashiS.M.MariunN.ArisI.3200883This work deals with the study and simulation of Unified
Power Flow Control (UPFC) at its normal and abnormal conditions. The systems
are modeled and simulated using MATLAB software. Shunt inverter or Static
Compensator (STATCOM) is modeled as a 3-phase multipulse converter and
the series inverter or SSSC has been constructed as a 3-phase, 3-level
multilevel converter. Faults are set to the system to observe the operation
of STATCOM and phase shift, φ of the SSSC is varied to observe the
operation of SSSC. Simulations are carried out and the results obtained
agreed with the theory of operation of the UPFC.]]>Dong, L.Y., L. Zhang and M.L. Crow,2002Faried, S.O. and A.A. Eldamaty,2004Hingorani, N.G. and L. Gyugyi,1999Meng, Z.J. and P.L. So,2000Moore, P. and P. Ashmole,1995Toufan, M. and U.D. Annakkage,1998Wang, H.W. and W. Fang,1999Wang, J. and F.Z. Peng,2004Zheng, S., L.T. Yoke, S. Cheng and Y. Zhu,2000