Abstract
This paper presents a systematic scheme to evaluate nonlinear modal interaction in a power system with excitation control and determine the effect of the interaction on control performance using the normal forms of vectors fields. The proposed approach has been applied to a two-area, four-generator system. The results obtained showed that the control modes have significant interaction with the inertial modes, especially with the so-called interarea modes. The nonlinear interaction between modes following the excitation of certain specific modes could result in a detrimental effect on control performance when the controls are designed based on purely linear analysis.
Original language | English (US) |
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Pages (from-to) | 781-787 |
Number of pages | 7 |
Journal | IEEE Transactions on Power Systems |
Volume | 11 |
Issue number | 2 |
DOIs | |
State | Published - 1996 |
Externally published | Yes |
Keywords
- Excitation control
- Interarea mode
- Modal interaction
- Normal forms
- Power system stability
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering