飞机舵机电动加载系统的非线性干扰抑制方法
Nonlinear Interference Suppression Methods for Aircraft Rudder Electric Loading System
刘晓琳 1王静1
作者信息
- 1. 中国民航大学电子信息与自动化学院,天津 300300
- 折叠
摘要
飞机舵机电动加载系统是一个复杂的非线性机电控制系统,在运行过程中会产生多余力矩、摩擦、机械间隙等非线性干扰;针对以上问题,介绍了系统的硬件结构和工作原理,建立了系统的数学模型;在此基础上分析了非线性干扰的产生机理和工作特性,并根据加载系统领域非线性干扰抑制方法的研究,从结构与控制的两个方面进行归纳分类,进行性能对比以及适用性分析;针对多余力矩抑制的问题,提出了模型预测控制方案对其进行补偿,实验结果表明可以较准确地跟踪指令力矩,误差率小于1.93％,多余力矩的消除率达到95.86％;证明了所提出的方案的有效性,能够改善多余力矩的抑制能力,提高系统跟踪精度.
Abstract
The aircraft rudder electric loading system has the features of complexity and nonlinear electromechanical control which may produce nonlinear interference such as extra torque,friction and mechanical gap during operation.Aimed at the above problems,this paper presents the hardware structure and working principle of the system,and builds the mathematical model of the system.On this basis,it analyzes the generation mechanism and working characteristics of nonlinear interference,summarizes and classifies from the aspects of the structure and control according to the nonlinear interference suppression methods for loading system,and the per-formance is compared and the applicability is analyzed.For the extra torque,a model control scheme is proposed and compensated.Experimental results show that the command torque can be tracked accurately,the error rate is less than 1.93％,and the excess torque elimination rate is up to 95.86％.The proposed scheme improves the effectiveness of the system,which can improve the sup-pression ability of extra torque and increase the tracking accuracy of the system.
关键词
电动加载系统/非线性干扰/多余力矩/模型预测控制/抑制/飞机舵机Key words
electric loading system/nonlinear interference/extra torque/model predictive control/suppression/aircraft rudder引用本文复制引用
基金项目
天津市自然科学基金(17JCYBJC18200)
出版年
2024
NETL
NSTL
万方数据