Accounting for transfer conductance effects in Lyapunov transient stability analysis of a multimachine power system

Abstract A general procedure is presented for the construction of a Lyapunov function with regard to a multimachine power system that includes both transfer conductances and equivalent damping constants. This function extends the known Lyapunov-energy function relating to the case in which the transfer conductances are disregarded and allows the determination of a partial estimate of the stability domain. A numerical example shows the application.