Continuous advances in the field of power electronics have resulted in new technologies connected to power systems. Examples are the different types of FACTS devices connected to the network to perform a number of control functions or to reinforce congested areas. However, conventional power flow methods are not capable of representing these new components with accuracy. This paper presents a generalized power flow method able to include the steady state characteristics of any dynamic device by using the same models considered for time domain simulation. The proposed method allows the monitoring of the performance of the dynamic devices when certain parameter is changed, such as the load level or the voltage setpoint of a given controller. ©2007 IEEE. 8691Doorman, G.L., Optimal System Security Under Capacity Constrained Conditions (2001) IEEE Porto Power Tech Proceeding, 2. , 6 ppSanchez-Gasca, J.J., Vittal, V., Gibbard, M.J., Messina, A.R., Vowles, D.J., Liu, S., Annakkage, U.D., Inclusion of Higher Order Terms for Small-Signal (Modal) Analysis: Committee Report - Task Force on Assessing the Need to Include Higher Order Terms for Small-Signal (Modal) Analysis (2005) IEEE Transactions on Power Systems, 20 (4), pp. 1886-1904. , DecKshatriya, N., Annakkage, U.D., Gole, A.M., Fernando, I.T., Improving the Accuracy of Normal Form Analysis (2005) IEEE Transactions on Power Systems, 20 (1), pp. 268-293. , FebAmano, H., Kumano, T., Inoue, T., Nonlinear Stability Indexes of Power Swing Oscillation Using Normal Form Analysis (2006) IEEE Transactions on Power Systems, 21 (2), pp. 825-834. , MayC. A. Cañizares, Power Flow and Transient Stability Models of FACTS Controllers for Voltage and Angle Stability Studies, In Proc. 2000 IEEE Power Engineering Society Winter Meeting, 2, pp. 1447-1454Milano, F., An Open Source Power System Analysis Tool Box (2005) IEEE Trans. Power Systems, 20 (3), pp. 1199-1206. , AugKundur, P., (1994) Power System Stability and Control, , New York: McGraw-HillYeu, R.H., Sauer, P.W., Post-Contingency Equilibrium Analysis Techniques for Power Systems Proc. 2005 of the 37th Annual North American Power Symposium, pp. 429-433Feng, Z., Ajjarapu, V., Long, B., Identification of Voltage Collapse Through Direct Equilibrium Tracing (2000) IEEE Trans. Power Systems, 15 (1), pp. 342-349. , FebZhu, L., Zhou, S., Zhang, Y., Extended Load-Flow Arithmetic For Voltage Stability Analysis Proc. PowerCon 2000 Power System Technology International Conf, 1, pp. 427-431Sauer, P.W., Pai, M.A., Power System Dynamics and Stability (1998) Upper River, , NJ: Prentice HallPal, B., Chaudhuri, B., (2005) Robust Control in Power Systems, , New York: Springerhttp://www.power.uwaterloo.ca/~fmilano/downloads.htm, F. Milano, 2006, December 14, PSAT, Power System Analysis ToolboxDocumentation for PSAT version 2.0.0 β 1 [Online, Available