低速飞行模拟转台变结构控制设计  

Design of Variable Structure Controller for Flight Simulator Servo System with Low Speed

作　　者：朱齐丹[1] 汪瞳[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《控制工程》2010年第1期31-34,共4页Control Engineering of China

基　　金：国家自然科学基金资助项目(60704004)

摘　　要：针对飞行模拟转台在低速运行时的控制问题进行研究。由于摩擦力矩对飞行模拟转台在低速运行的影响较大,为了使转台在低速运行时具有精确的跟踪能力,采用变结构控制方法设计了控制器,并利用干扰观测器对摩擦力矩进行估计,从而在不增加系统硬件设备及改变转台结构的情况下对摩擦力矩进行补偿。仿真表明,该方法可以使飞行模拟转台在低速情况下具有良好的跟踪能力,干扰观测器可以准确地对摩擦力矩进行估计,并有效地补偿了摩擦力矩的影响,验证了该方法的有效性。The control problem of the flight simulator servo system with low speed is considered. In order to reduce the influence of friction torque and enhance the performance of flight simulator servo system with low speed, a controller is designed via variable structure control method. A disturbance observer is designed to estimate and offset the friction torque without any increase of system hardware and any change of system architecture. Simulation results show that the flight simulator has the merit of tracking precisely with low speed and the disturbance observer can estimate the friction torque precisely.

关 键 词：飞行模拟转台 摩擦模型 变结构控制 干扰估计 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]