A methodology for the estimation of synchronous generator and excitation system parameters

In this paper, a methodology to estimate parameters of synchronous generator and its excitation system, based on the trajectory sensitivity technique, is proposed. Some alternatives are proposed for this technique regarding a future 'on-line' application. The parameters of classical and "two-axis" models of generator are estimated. An alternative is also proposed to overcome problems related to differential equations with variables that can not be measurable in the real system. The methodology developed is also used to estimate the parameters of the excitation system (STR1 and DC1 type) in a successful way.