Advanced modeling and control of a power system with U P F C

Conventional trend has been to represent a power system in terms of both, differential and algebraic equations. A system being modelled by purely differential equations are favourable for enhanced control design. In this paper an approach to develop a nonlinear dynamic representation of the single machine-infinite bus power network with UPFC as a stabilizing device is undertaken. Once the dynamic representation is achieved, a new method for control design is explained. The nonlinear control law is developed using back stepping methodology. Simulation results on a single machine power system illustrate the effectiveness of the suggested method.