Title | Nonlinear oscillations caused by periodic disturbance between inter-area power systems |
Publication Type | Conference Paper |
Year of Publication | 2008 |
Authors | Mao, D. T., P. Zhang, H. A. Rahman, and J. R. Marti |
Conference Name | Electric Power Conference, 2008. EPEC 2008. IEEE Canada |
Pagination | 1 -5 |
Date Published | oct. |
Keywords | bifurcation, bifurcation phenomena, chaos, chaotic oscillation, inter-area oscillation, Poincare mapping, Poincare section method, power system disturbance, power system faults, power system interconnection, power system stability, power system transient stability, signal sampling, transient chaos detection, two-machine equivalent model |
Abstract | Understanding the mechanism of inter-area oscillation is an important problem in power system stability research. In this paper, by introducing periodic disturbance, we propose a new mechanism to model inter-area oscillation caused, which promises new direction in this field. As a proof of our idea, a two-machine equivalent model based representation of two interconnected power systems was used. Chaos and bifurcation phenomena have been detected in the system by using a special Poincare section method that considers long-term characteristics of the sampled signal. Based on simulation study of the proposed model, inter-area oscillation evolving from period doubling bifurcation to chaos can be unfolded as the disturbance parameter increases. Our simulation results show three oscillation patterns; those are intermittent oscillation, transient chaos and chaotic oscillation. These results can give new ideas to interpret abnormal oscillating phenomena that happen in real power systems. |
URL | http://dx.doi.org/10.1109/EPC.2008.4763306 |
DOI | 10.1109/EPC.2008.4763306 |