摘要
为了研究船舶电力系统在周期电磁扰动下发生混沌振荡的规律,应用Poincare映射法给出了系统发生混沌的必要条件,同时应用Lyapunov指数判别系统在扰动下的动态行为,得出了系统发生混沌时扰动幅值和扰动频率的取值范围.仿真结果表明,Poincare映射法简单直观,可以给出系统运行的具体形式,同时和Lyapunov指数法相结合可以为抑制或消除船舶电力系统中的混沌提供数值计算依据.
In order to research chaotic oscillation of ship power system that was excited by periodic electromagnetic disturbance,Poincare mapping and Lyapunov exponent were used to numerically analyze chaos of ship power system.Poincare mapping gave the necessary condition of chaos.In addition,Lyapunov exponent showed the dynamical action of disturbed system.Therefore,value range of disturbance′s magnitude and frequency were acquired when chaotic oscillation appeared in system.Simulation results show that Poincare mapping method is simple and intuitionistic.Combined with Lyapunov exponent method,it can provide computation basis to suppress or eliminate chaos in ship power system.
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2010年第2期164-168,共5页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
国防科工委预研基金资助项目(A3820061202)
船舶行业国防预研基金资助项目(2.6.7)
