电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2014年
18期
80-83
,共4页
自主空中加油%神经网络%动态逆%非线性控制
自主空中加油%神經網絡%動態逆%非線性控製
자주공중가유%신경망락%동태역%비선성공제
autonomous aerial refueling%neural network%dynamic inversion%nonlinear control
针对空中加油中无人机位置保持问题，进行了时变质量UAV的动力学建模与非线性控制设计。综合考虑了燃油传输对UAV的质量、惯性矩阵和质心位置的影响，基于相对于惯性系的状态变量，推导了UAV时变质量动力学方程。分析燃油传输带来的动力学影响，并设计神经网络动态逆控制律来实现UAV的位置保持，通过非线性仿真验证了控制律的有效性。
針對空中加油中無人機位置保持問題，進行瞭時變質量UAV的動力學建模與非線性控製設計。綜閤攷慮瞭燃油傳輸對UAV的質量、慣性矩陣和質心位置的影響，基于相對于慣性繫的狀態變量，推導瞭UAV時變質量動力學方程。分析燃油傳輸帶來的動力學影響，併設計神經網絡動態逆控製律來實現UAV的位置保持，通過非線性倣真驗證瞭控製律的有效性。
침대공중가유중무인궤위치보지문제，진행료시변질량UAV적동역학건모여비선성공제설계。종합고필료연유전수대UAV적질량、관성구진화질심위치적영향，기우상대우관성계적상태변량，추도료UAV시변질량동역학방정。분석연유전수대래적동역학영향，병설계신경망락동태역공제률래실현UAV적위치보지，통과비선성방진험증료공제률적유효성。
To keep the position of an unmanned air vehicle (UAV) during autonomous aerial refueling, we develop the dynamic model and put forward a nonlinear controller for the UAV with time-varying mass. By comprehensively considering the effect of fuel transfer on the UAV mass, the inertia matrix and the center of mass, we derive the time-varying mass dynamic equations of UAV based on state variables relative to inertial reference frame. Through analyzing the dynamic characteristic effect of fuel transfer, we design neural network dynamic inversion control law to keep the position of unmanned air vehicle, and nonlinear simulation demonstrates the effectiveness of the flight control law.
