Energy function for power systems with transmission losses

Author

Ledwich, Gerard ; Palmer, Ed

Author_Institution

Newcastle Univ., NSW, Australia

Volume

12

Issue

2

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

785

Lastpage

790

Abstract

Stability analysis of nonlinear systems draws heavily on energy functions. For power systems, energy functions have been developed for single machine systems and for the special case of constant power loads and lossless transmission lines, extended to multimachine systems. In this paper a circuit energy approach is reconciled with the traditional machine equations using the steady state solution for the transmission network. Physically based development of the energy function starts from the model analysed in a stationary reference frame. The monotonic convergence of the energy is demonstrated on a 3 machine system with transmission losses

Keywords

losses; power system stability; power transmission; power transmission lines; 3 machine system; circuit energy; constant power loads; energy function; energy functions; lossless transmission lines; machine equations; monotonic convergence; multimachine systems; nonlinear systems; power systems; stability analysis; stationary reference frame; steady state solution; transmission losses; transmission network; Distributed parameter circuits; Nonlinear equations; Nonlinear systems; Power system analysis computing; Power system stability; Power systems; Power transmission lines; Propagation losses; Stability analysis; Steady-state;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.589682

Filename

589682