基于改进PID-LQR的导弹稳定控制方法研究
Research on Method of Missile Stability Control Based on Improved PID-LQR Algorithm
苏日新 1张欧2
作者信息
- 1. 国防科技大学空天科学学院,湖南长沙 410073;航天江南集团有限公司,贵州贵阳 550009
- 2. 江南机电设计研究所,贵州贵阳 550009
- 折叠
摘要
导弹稳定控制系统是提高导弹制导性能的关键技术之一,一直以来都是研究的热点和重点.以导弹纵向平面为例,建立了导弹稳定控制的状态空间模型,推导了 LQR控制算法,在传统LQR方法的基础上,结合PID算法提出了一种改进的PID-LQR导弹稳定控制方法.通过仿真分析,比较了所提方法和传统LQR方法、改进LQR方法、模糊PID-LQR方法的控制性能,并对建立的导弹模型参数进行了拉偏试验,仿真结果表明所提出的方法优于其他3种方法,具有良好的控制性能和鲁棒性.
Abstract
Missile stability control system is one of the crucial technologies to promote missile guidance performances,and has always been a research hotspot and focus.Taking the longitudinal plane of a missile as an example,a state-space model of the missile stability control is established.The linear quadratic regulator(LQR)control algorithm is derived,and an improved PID(proportional integral derivative)-LQR approach for missile stability control is proposed based on the traditional LQR method and PID algorithm.The control performances of the proposed method are compared with traditional LQR method,improved LQR method,and fuzzy PIQ-LQR method through simulation analysis.The established missile model parameters are subjected to conduct bias tests.The simulation results show that the proposed method is superior to the other three methods and has good control performances and robustness.
关键词
导弹稳定控制/导弹模型/线性二次型调节器/比例积分微分Key words
missile stability control/missile model/linear quadratic regulator(LQR)/proportional integral derivative(PID)引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据