摘要
对于导弹飞行控制,当系统在大动态范围运行时,常规模糊PID控制由于固定论域、调整因子以及根据个别专家经验制定的有限控制规则不够完善,其固定的论域范围就会使得模糊控制对PID参数的调整过大或者过小,造成系统响应变慢,出现震荡,难以稳定等。针对导弹在飞行过程中具有非线性、耦合性以及时变性等特点,设计了一种自适应变论域模糊PID复合控制策略,采用变论域模糊控制实现控制参数自整定和控制规则的自调整,采用PID控制弥补模糊控制固有的精度盲区。实验结果表明该方法无论在随机扰动还是幅值扰动情况下都能够实现快速响应,自适应抗干扰能力强,具有动态响应快、稳定精度高,鲁棒性强等特点。
Conventional fuzzy PID control is not perfect for missile flight control because of its fixed domain, the adjustment factor and the limited control rules based on individual expertise. When the system is running over a large dynamic range, the range of the fixed domain will make the fuzzy control PID parameter adjustment is too large or too small and cause the system to slow down in response, to a shock and to non-stable. During the flight of missiles, there are many characteristics such as nonlinear, coupling, time-varying, etc. A kind of adaptive variable universe fuzzy PID compound control strategy is designed. Auto- setting of control parameter and control rules is realized by using the variable universe fuzzy controller. The inherent accuracy blind area of the fuzzy controller is made up using the PID controller. The experimental results show that this method both in random disturbance or amplitude disturbance cases can a- chieve rapid response, adaptive anti-jamming ability, and has the characteristics of quick dynamic response, stability, high precision, strong robustness etc.
出处
《控制工程》
CSCD
北大核心
2014年第6期848-852,共5页
Control Engineering of China
基金
中央高校基本科研业务费专项资金资助(FRF-AS-11-004B)
北京市重点学科共建项目(XKl00080537)
关键词
变论域
自适应控制
模糊控制
PID控制
飞航导弹
Variable Universe
Adaptive Control
Fuzzy Control
PID Control
Maneuverable Missile
