一种可重复使用运载器的伪逆法自修复控制  

Research of Self-Repairing Control System for RLV Based on Pseudo-Inverse Method

作　　者：黄思亮 呼卫军[1] 周军[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,陕西西安710072

出　　处：《计算机仿真》2014年第8期105-109,158,共6页Computer Simulation

摘　　要：研究可重复使用运载器自修复控制问题,由于气动舵面故障将严重影响飞行器飞行安全,针对实时自修复控制系统的控制器和控制分配算法进行了研究。根据对象强时变非线性和飞行环境变化剧烈特点,利用动态逆和变结构控制理论,设计了双回路动态逆变结构控制器。针对舵面故障的特点,设计了改进的基于力矩指令的实时伪逆法控制分配算法;给出了结合上述控制器和控制分配算法的自修复控制系统。数字仿真表明,上述系统在可重复使用运载器舵面出现漂浮、卡死故障时,具有良好的实时自修复控制能力,并满足跟踪精度、时效性和适应性要求。Actuator failure will seriously affect the flight safety of RLV, and the self - repairing control system for RLV is the Key to solve this problem. This article designs an improved online self - repairing control system com- bined with dynamic inverse theory and pseudo inverse method. A double - loop variable structure control system based on dynamic inverse theory and variable structure control is designed, and a pseudo - inverse control mixer based on moment commands is buih to reassign actuator commands and accomplish the self- repairing control task. Simulation results show that the control system designed in this article can solve the self - repairing control problem of RLV effectively in real - time under actuator failure circumstances and can fulfill the requirements of tracking accura- cy, algorithmic efficiency and adaptability.

关 键 词：伪逆法 可重复使用运载器 控制分配 自修复控制 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]