基于模糊控制的火箭伺服系统频域控制设计方法  

The Frequency Domain Design of Launch Vehicle Servo-System Control Algorithm Based on Fuzzy Control

作　　者：钱昌年 傅俊勇 

机构地区：[1]上海航天控制技术研究所,上海200233

出　　处：《航天控制》2014年第5期11-15,共5页Aerospace Control

摘　　要：某型火箭发动机机械谐振频率低、谐振程度剧烈,给伺服系统的控制方法设计带来了困难。本文将模糊思想引入到控制器频域设计,提出了一种采用T-S结构的混合模糊控制算法,该算法根据输入信号的频率成分实时调整控制器的比例系数。Simulink仿真结果表明,该算法有效抑制了系统的低频谐振,改善了系统的频率特性。Some type launch vehicle engine has the properties of low resonance frequency and powerful reso- nance which make it difficult to design the control algorithm of the launcher servo-system. A fuzzy control algorithm which adopts T-S structure and tunes the proportional coefficient of controller depending on the components of signal is presented by introducing fuzzy idea to frequency domain design of control algorithm. The Simulink simulation results show that the low frequency resonance of system is eliminated and the fre- quency property is improved by applying this algorithm.

关 键 词：频域设计 T-S模糊控制 机械谐振 伺服系统 

分 类 号：V448.122[航空宇航科学与技术—飞行器设计]