飞机舵机电动加载系统多余力矩干扰抑制方法  

Analysis and Suppression of Excess Torque Interference in Electric Loading System of Aircraft Rudder

作　　者：刘晓琳 谢孟岑 李卓 LIU Xiaolin;XIE Mengcen;LI Zhuo(College of Electric Information and Automation, Civil Aviation University of China, Tianjin 300300, China;College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China)

机构地区：[1]中国民航大学电子信息与自动化学院,天津150001 [2]中国农业大学信息与电气工程学院,北京100083

出　　处：《微电机》2022年第6期86-92,共7页Micromotors

基　　金：天津市自然科学基金(17JCYBJC18200);中央高校基金(3122018C002);波音基金(20210715113)。

摘　　要：为了解决多余力矩对飞机舵机电动加载系统带来的干扰问题,提出采用结合基于结构不变性原理的前馈控制补偿器与基于改进超螺旋滑模算法的反馈控制器组成复合控制策略。在前馈控制补偿器中,通过计算多余力矩干扰比对多余力矩进行定量分析,以实现对产生干扰比较大的舵机运动干扰项进行抑制。在反馈控制器中,采用改进超螺旋滑模算法对系统转速环进行控制,通过对原算法中不连续的符号函数进行平滑处理,保证控制输入连续。仿真结果表明,这一复合控制策略不仅能够对多余力矩干扰实现有效地抑制,同时还进一步实现了系统的加载精度及控制性能的提升。This paper analyzed and studied the interference problem in the electric loading system of aircraft steering gear due to redundant torque.On this basis,the composite control strategy was composed of feedforward control compensator which ensured the invariance of structure and feedback controller based on super-helix sliding mode algorithm.In feedforward control compensator,the redundant torque interference ratio was calculated to quantitatively analyze the excess torque,so as to suppress the motion interference term of steering gear with large interference.In the feedback controller,the super-helix sliding mode algorithm was used to control the speed loop of the system,and the discontinuous symbol function in the original algorithm was smoothed to ensure the continuous control input.The simulation results show that this compound control strategy can effectively suppress the redundant torque interference,and at the same time,it can further improve the loading accuracy and control performance of the system.

关 键 词：电动加载系统 多余力矩 超螺旋算法 复合控制器 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] TP273[自动化与计算机技术—检测技术与自动化装置]