Improved swing equation and its properties in synchronous generators

Authors:
Jun Zhou;Yasuharu Ohsawa
Affiliations:
Department of Electrical Engineering, Kyoto University, Kyoto, Japan;Department of Electrical Engineering, Kyoto University, Kyoto, Japan
Venue:
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Year:
2009

Citing 3
Cited 0

Asymptotic stability and estimating the region of attraction for the swing equatons

Systems & Control Letters
Nonlinear systems analysis (2nd ed.)

Nonlinear systems analysis (2nd ed.)
Nonlinear Control Systems II

Nonlinear Control Systems II

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Abstract

Modeling single-machine (synchronous-generator) infinite-bus (SMIB) systems with what we call the improved swing equations is considered in this paper. The existence and properties of local solutions to the improved swing equations are then examined. Furthermore, the local stability of the SMIB systems is scrutinized. By interpreting the improved swing equations with Taylor expansions, approximate linear time-invariant improved swing equations are derived, with which the dynamics of the SMIB systems can be estimated pointwisely. Comparisons between the improved and conventional swing equations are made through illustrative examples.