摘要
针对永磁同步电机在一些特定的参数和工作条件下呈现的复杂动态行为,在分析永磁同步电机(PMSM)混沌运动特性的基础上,提出了一种PMSM混沌系统的转速跟踪控制方法。首先通过仿射变换和时间尺度变换,将转子磁场定向坐标系下的PMSM模型,变换成一种简单的无量纲模型。之后采用相图、分岔图和Lyapunov指数的方法,分析了PMSM的混沌动态特性。最后通过在原状态方程中增加一个状态变量的方法,采用比例积分控制,设计了一种PMSM的混沌运动控制器,实现了PMSM混沌系统对给定参考转速的渐近跟踪,仿真结果验证了控制方法的有效性。
Aim at the complex dynamic behaviors of permanent magnet synchronous motors （PMSM） under certain parameters and operation conditions, a speed tracking control method for chaos system of PMSM is proposed based on the analysis of chaos motion in permanent magnet synchronous motors. Firstly, the model of PMSM in the rotor-field-oriented frame is transformed into the non-dimensional form via the affine and time scale transformations. Then, the chaos behaviors of PMSM are analyzed by using phase portraits, bifurcation diagrams and Lyapunov exponents. Finally, a controller of chaos in PMSM, which can realize the asymptotic tracking to the speed reference, is designed by adding an auxiliary state variable in the original state equation and using the proportional plus integral control principle. Simulation results verified the effectiveness of the proposed control method.
出处
《控制工程》
CSCD
北大核心
2011年第5期796-798,814,共4页
Control Engineering of China
基金
国家自然科学基金资助项目(60974009)
2009年江苏省"六大人才高峰"计划项目
关键词
永磁同步电机
混沌分析
跟踪控制
permanent magnet synchronous motor
chaos analysis
tracking control
