基于改进LESO的电磁引纬自抗扰控制系统

Electromagnetic Gravitational Self-immunity Control System Based on Improved LESO

中文关键词: 电磁引纬  线性扩张状态观测器  自抗扰控制  非线性系统

英文关键词: electromagnetic weft insertion  linear extended state observer  active disturbance rejection control  nonlinear system

中文摘要:

      针对电磁引纬系统存在的非线性、强耦合、易受外界干扰等问题，提出一种基于改进线性扩张状态观测器(LESO)的自抗扰控制策略。首先建立电磁引纬系统的数学模型，分析系统的非线性特性；然后对传统LESO进行改进，提升其对系统总扰动的观测精度；最后设计自抗扰控制器，实现对电磁引纬系统的高精度控制。仿真结果表明，所提控制策略可有效抑制外界干扰，提升系统的动态响应性能和稳态精度，具有良好的鲁棒性。

英文摘要:

      Aiming at the problems of nonlinearity, strong coupling and vulnerability to external interference in the electromagnetic weft insertion system, an active disturbance rejection control strategy based on improved linear extended state observer (LESO) is proposed. Firstly, the mathematical model of the electromagnetic weft insertion system is established, and the nonlinear characteristics of the system are analyzed; then the traditional LESO is improved to improve the observation accuracy of the total disturbance of the system; finally, the active disturbance rejection controller is designed to realize the high-precision control of the electromagnetic weft insertion system. The simulation results show that the proposed control strategy can effectively suppress external interference, improve the dynamic response performance and steady-state accuracy of the system, and has good robustness.