巡航式冲压增程制导炮弹模糊自适应PID控制  

Fuzzy Adaptive PID Control for Cruise-Type StampingExtended-Range Guided Artillery Shell

作　　者：李政远 王旭刚[1] 贾昂 LI Zhengyuan;WANG Xugang;JIA Ang(School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210000,China)

机构地区：[1]南京理工大学能源与动力工程学院,南京210000

出　　处：《电光与控制》2023年第9期22-28,共7页Electronics Optics & Control

基　　金：中央高校基本科研业务费专项资金资助(30919011401)。

摘　　要：为适应巡航式冲压增程制导炮弹在巡航飞行过程中质心不断前移、气动参数变化范围大这一特征,实现在巡航飞行过程中的自适应控制,设计了一种基于模糊自适应PID算法的三回路自动驾驶仪。首先,由小扰动法将纵向平面内炮弹运动方程组线性化并推导炮弹各姿态角的传递函数,同时选取巡航始末位置特征点进行动态特性分析;在此基础上设计三回路自动驾驶仪以提升系统相角裕度,改善其阻尼特性;由频域分析法和根轨迹法设计巡航始末位置特征点处的内回路控制参数,并用插值计算得出其他非特征点的内回路控制参数;外回路采用模糊自适应PID进行设计。仿真结果表明,在巡航飞行过程中,模糊自适应算法所设计的自动驾驶仪具有良好的控制品质。In order to adapt to the characteristics of cruise-type stamping extended-range guided artillery shells that the center of mass is constantly moving forward during cruise flight and the range of aerodynamic parameters is large,and in order to realize adaptive control during cruise flight,a three-loop autopilot based on fuzzy adaptive PID algorithm is designed.Firstly,the small perturbation method is used to linearize the system of shell motion equations in the longitudinal plane and deduce the transfer function of each attitude angle of the shell,and the feature points at the beginning and end of the cruise are selected for dynamic characteristic analysis.Based on this,a three-loop autopilot is designed to increase the phase angle margin of the system and improve its damping characteristics.The inner-loop control parameters at the feature points at the beginning and end of the cruise are designed by using the frequency domain analysis method and the root trajectory method,and the inner-loop control parameters of other non-feature points are calculated by interpolation.The outer loop is designed by using fuzzy adaptive PID.The simulation results show that the autopilot designed by the fuzzy adaptive algorithm has good control quality during cruise flight.

关 键 词：制导炮弹 冲压发动机 巡航 动态特性分析 模糊自适应PID 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]