损耗型变形耦合电机系统的混沌参数特性  

The characteristics of the chaotic parameters for a loss type of modified coupled dynamic system

作　　者：郝建红[1] 孙娜燕[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《物理学报》2012年第15期64-72,共9页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10775018);科技部国际科技合作项目(批准号:2007DFA71250;2011DFR00780)资助的课题~~

摘　　要：提出一种考虑两种损耗特性的耦合发电机模型.与原来的耦合发电机模型相比,该模型更能反映实际情况.通过数值计算Lypunov指数谱、分岔图、Poincare映射等,分析了系统在各种参数空间的性态变化.结果显示考虑机械阻尼损耗的耦合发电机模型具有双吸引子,机械阻尼损耗一方面可以抑制系统混沌,另一方面却使系统在参数空间具有更复杂的混沌特性,表征这两种损耗特性的参数对系统动力学行为都有显著的影响.A coupled dynamos model considering two loss characteristics is proposed,which can characterize the practical situation well compared with the previous one.By numerical calculation,the Lyapunov exponential spectrum,bifurcation diagram and Poincare mapping are given.Then the dynamic characteristics of the parameters space are analyzed.From these results,it can be found that the novel coupled dynamo model with the consideration of mechanical damping loss,has double attractors.The mechanical damping loss can suppress the chaotic occurrence and leads to more complex bifurcation characteristic appearing in the parameter space.The two kinds of the loss characteristic parameters have significant influence on the dynamic behavior of the system.

关 键 词：耦合发电机系统 分岔 LYAPUNOV指数 Poincar映射 

分 类 号：TM301[电气工程—电机] O415.5[理学—理论物理]