摘要
为抑制空中加油给飞机带来的变质量影响,将质量的变化等效为对飞机的干扰力和干扰力矩,建立了变质量飞机的一般动力学模型,并经过小扰动线性化得到飞机带干扰的纵向状态方程。采用比例积分观测器(PIO)对干扰进行观测,基于观测值设计了补偿控制器以实现对变质量干扰的抑制。以受油机为例进行计算机仿真,结果表明,该模型有效地反映了变质量受油机的动力学特性,干扰补偿控制器能够实现对变质量受油机的精确控制。
In order to restrain the influence on aircraft caused by the variable mass in aerial refueling,the general dynamic equations with variable mass are derived by equalizing mass variation to the disturbance forces and moments to the aircraft,and then the state equation of longitudinal channel is achieved by small disturbance linearization.The proportional integral observer（PIO） is used to estimate the disturbance forces and moments,which are used to compute the disturbance compensation and control the aircraft.The computer simulink of an example of receiver in aerial refueling demonstrates that the model efficiently reflects the dynamic characteristics of the receiver with variable mass,and the controller can control the receiver accurately.
出处
《飞行力学》
CSCD
北大核心
2013年第4期321-325,共5页
Flight Dynamics
关键词
空中加油
变质量
比例积分观测器
干扰补偿
aerial refueling
variable mass
proportional integral observer
disturbance compensation
