飞机电动货舱门位置伺服系统的复合控制策略研究  

Research on Compound Control Strategy of Aircraft Electric Cargo Door Position Servo System

作　　者：周素莹[1] 李亚伦 王泽坤 林辉[1] ZHOU Suying;LI Yalun;WANG Zekun;LIN Hui(Northwestern Polytechnical University,School of Automation,Xi’an 710129,China)

机构地区：[1]西北工业大学自动化学院,西安710129

出　　处：《微电机》2023年第5期31-35,共5页Micromotors

摘　　要：在建立电动舱门非线性数学模型的基础上,为解决舱门启闭过程中风载、系统结构参数及未知扰动等影响,提出了滑模控制和改进PID控制相结合的复合控制策略,外环采用滑模控制实现系统建模不精确或有干扰时给定舱门启闭角度的跟踪控制,并产生内环电流控制的给定信号。采用抗积分饱和的改进PID控制舱门作动电机的PWM信号实现内环的电流跟踪控制。仿真及实验结果表明,该文所提的控制方法在系统参数变化或有扰动时,可降低系统稳态误差,改善动态性能。In order to realize the accurate tracking of the motion trajectory of the aircraft electric cargo door,a composite control strategy was proposed according to the structure and opening-closing requirements of the electric cargo door of an aircraft.Based on the nonlinear mathematical model of electric cabin door,a control strategy combining sliding mode control and improved PID control was proposed to track the position when the conditions such as wind load and system parameters change.The position loop tracking was realized by sliding mode control,and the PWM signal of the door actuator motor was controlled by an improved PID with anti-integral saturation to realize the current loop tracking.Simulation and experimental results show that the proposed control method can significantly reduce the steady-state error and improve the dynamic performance when the external conditions change.

关 键 词：自适应滑模 电动舱门 轨迹跟踪 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] V271.4[自动化与计算机技术—控制科学与工程]