【摘要】 利用理论推导和数值仿真对永磁同步电机系统的基本动力学特性进行了讨论。借助Poincaré截面、功率谱、Lyapunov指数、快速Lyapunov指标和较小排列指标等判定轨道混沌性质的方法,分析了参数变化对动力学行为的影响,即调节参数可使永磁同步电机系统产生混沌或拟周期现象。同时运用Multisim软件设计了混沌电路,并从电路实验中观察到了混沌吸引子,证实了电路实验结果与数值仿真完全相符。更多还原

【Abstract】 Dynamic properties of a Permanent-magnet Synchronous Motors system are discussed by a theoretical analysis and numerical simulations.Poincaré section,Power Spectrum,Lyapunov exponent,Fast Lyapunov Indicators and the Smaller Alignment Index,as methods for distinguishing chaos from order,are used to study the dependence of the dynamic transitivity on the variational parameter.That is to say,this system shows chaotic or quasi-periodic orbits by adjusting it’s coefficient.Simultaneously,a chaotic electronic circuit is designed with help of Multisim software.Attractors and chaotic behaviors of this system can be seen from the circuit experiments.It is shown that both the numerical results and the experimental ones are consistent.更多还原