Nonlinear Equilibrium Point Control for One-Machine Model Power System

For the stability of power systems, nonlinear control is thought to be desirable since generator has a strong nonlinearity. On the other hand, the authors have proposed an equilibrium point control for multi-machine power systems. This letter shows that in the case of nonlinear supplementary control input for AVR, the calculation of equilibrium points is simple, and the input gives fairly good control responses and a long critical clearing time through the numerical simulation of a one-machine model power system.