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首页> 外文期刊>Journal of the Korean Physical Society >Robust nonlinear feedback control of a chaotic permanent-magnet synchronous motor with a load torque disturbance
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Robust nonlinear feedback control of a chaotic permanent-magnet synchronous motor with a load torque disturbance

机译：具有负载转矩扰动的混沌永磁同​​步电动机的鲁棒非线性反馈控制

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摘要

The permanent-magnet synchronous motor (PMSM) system, which is a nonlinear dynamic system, will demonstrate a variety of chaotic phenomena when its parameters or external inputs fall into a certain area, which will lead to a deterioration of its performance. Thus, chaos should be suppressed or eliminated. In this paper, the property of equilibrium points is analyzed, and the condition for the occurrence of a Hopf bifurcation in a PMSM system is given based on a mathematical model of the PMSM system with a bifurcation diagram, a Lyapunov exponent map and phase plane diagrams given. After the drawbacks of the existing control methods have been analyzed, a robust nonlinear feedback controller is designed to control the chaos in the PMSM system with a load torque disturbance. The object is to eliminate the chaos and to drive the system speed to a desired value, Numerical simulation proves the validity of this control method.
机译：永磁同步电动机（PMSM）系统是一种非线性动态系统，当其参数或外部输入落入某个区域时，将表现出各种混沌现象，这将导致其性能下降。因此，应该抑制或消除混乱。本文分析了平衡点的性质，并基于带有分叉图，Lyapunov指数图和相平面图的PMSM系统的数学模型，给出了PMSM系统中Hopf分叉的发生条件。给定的。在分析了现有控制方法的弊端之后，设计了一种鲁棒的非线性反馈控制器来控制带有负载转矩扰动的PMSM系统中的混沌。目的是消除混乱，并将系统速度驱动到所需值，数值仿真证明了该控制方法的有效性。

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