中国物理B ›› 2010, Vol. 19 ›› Issue (5): 50511-050511.doi: 10.1088/1674-1056/19/5/050511

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Random-phase-induced chaos in power systems

覃英华, 罗晓曙, 韦笃取   

  1. College of Electronic Engineering, Guangxi Normal University, Guilin 541004, China
  • 收稿日期:2009-10-05 修回日期:2009-10-19 出版日期:2010-05-15 发布日期:2010-05-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos.~10862001, 10947011 and 70571017).

Random-phase-induced chaos in power systems

Qin Ying-Hua(覃英华), Luo Xiao-Shu(罗晓曙), and Wei Du-Qu(韦笃取)   

  1. College of Electronic Engineering, Guangxi Normal University, Guilin 541004, China
  • Received:2009-10-05 Revised:2009-10-19 Online:2010-05-15 Published:2010-05-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos.~10862001, 10947011 and 70571017).

摘要: This paper studies how random phase (namely, noise-perturbed phase) effects the dynamical behaviours of a simple model of power system which operates in a stable regime far away from chaotic behaviour in the absence of noise. It finds that when the phase perturbation is weak, chaos is absent in power systems. With the increase of disturbed intensity $\sigma$, power systems become unstable and fall into chaos as $\sigma$ further increases. These phenomena imply that random phase can induce and enhance chaos in power systems. Furthermore, the possible mechanism behind the action of random phase is addressed.

Abstract: This paper studies how random phase (namely, noise-perturbed phase) effects the dynamical behaviours of a simple model of power system which operates in a stable regime far away from chaotic behaviour in the absence of noise. It finds that when the phase perturbation is weak, chaos is absent in power systems. With the increase of disturbed intensity $\sigma$, power systems become unstable and fall into chaos as $\sigma$ further increases. These phenomena imply that random phase can induce and enhance chaos in power systems. Furthermore, the possible mechanism behind the action of random phase is addressed.

Key words: random chaos, random phase, stochastic processes, SMIB power systems

中图分类号:  (High-current and high-voltage technology: power systems; power transmission lines and cables)

  • 84.70.+p
05.45.Gg (Control of chaos, applications of chaos)