Abstract
In this paper, we propose new nonlinear stability indices for multi-mode oscillations in power systems by using normal form analysis. One of the indices indicates the characteristics of damping factor with regard to its amplitude change, and the other indicates the stability region for each oscillation mode. We could obtain more detailed information on the stability of power systems by using the proposed indices together with eigenvalues in comparison with eigenvalue analysis. We show the validity of the proposed indices by numerical simulation in a multi-machine power system.
| Original language | English |
|---|---|
| Pages (from-to) | 215-221 |
| Number of pages | 7 |
| Journal | IEEJ Transactions on Power and Energy |
| Volume | 124 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2004 |
Keywords
- modal interaction
- multi-machine power system
- nonlinearity
- normal form theory
- stability index of power swing oscillation
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering