摘要
本文聚焦运载火箭自适应增广控制频域分析问题。首先,通过对控制器结构的简化,降低其非线性,同时构造单输入单输出环节,便于频域分析;之后,利用描述函数和常微分方程近似解析解的思想,对自适应增广控制进行了频域分析,获得了频域模型;最后,基于可重复使用验证飞行器对自适应增广控制器进行了飞行测试。飞行结果显示频域模型正确且精度较高,能够获得更好的控制效果。
The frequency domain analysis of the adaptive augmentation control for a launch vehicle is fo⁃cused in this paper.Firstly,the adaptive augmentation control framework is modified and considered as a single⁃input single⁃output block in order to simplify the frequency domain analysis.Furthermore,the fre⁃quency domain analysis of the controller is performed by linearizing the differential equation and using a simplified analytical solution,and then the frequency domain model is obtained.Finally,the adaptive augmentation controller is validated during the flight test on a reusable launch vehicle prototype.The result of flight data shows that the frequency model of adaptive augmentation controller is accurate and can a⁃chieve better control performance.
作者
佘宇琛
桂亮
胡存明
甘庆忠
陈弈澄
SHE Yuchen;GUI Liang;HU Cunming;GAN Qingzhong;CHEN Yicheng(Shanghai Institute of Spaceflight Control Technology,Shanghai 201109,China)
出处
《航天控制》
CSCD
2024年第1期11-16,共6页
Aerospace Control
关键词
自适应增广控制
运载火箭控制
频域分析
飞行测试
Adaptive augmentation control
Launch vehicle control
Frequency domain analysis
Flight test
