Complex dynamics caused by torus bifurcation in power systems

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作者：
School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China [1 ]
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来源：
Trans. Tianjin Univ. | 2006年 / 3卷 / 186-192期
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Bifurcation (mathematics) - Chaos theory - Dynamics - Mapping - System stability;
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摘要：
Torus bifurcation is a relatively complicated bifurcation caused by a pair of complex conjugate Floquet multipliers coming out of unit circle on the Poincare section. A three-bus system is employed to reveal the relationship between torus bifurcation and some complex dynamics. Based on theoretical analysis and simulation studies, it is found that torus bifurcation is a typical route to chaos in power system. Some complex dynamics usually occur after a torus bifurcation, such as self-organization, deep bifurcations, exquisite structure, coexistence of chaos and divergence. It is also found that chaos has close relationship with various instability scenarios of power systems. Studies of this paper are helpful to understand the mechanism of torus bifurcation in power system and relationship of chaos and power system instabilities.
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