摘要
针对制导弹箭控制系统中系统参数出现较大的非线性和时变性等问题,整数阶PID控制难以获得满意的控制效果。根据分数阶微积分的定义和性质,构造了分数阶控制器的结构,分析了其控制器参数对系统性能的影响,将分数阶控制器应用到制导弹箭的控制系统设计中,并对制导弹箭的分数阶控制系统进行了研究。结果表明,分数阶控制器较PID控制器有更强的鲁棒性和抗干扰能力,可以应用于制导弹箭的控制系统中,设计的分数阶控制器的频域和时域响应特性较PID控制器要好。研究结果为分数阶控制器在制导弹箭控制系统中的应用提供了理论基础。
In view of the appearance of nonlinearity and time variation of parameters in the control system for guided projectiles,it is difficult to acquire a satisfactory control effect only using the conventional PID.According to the definition and properties of fractional calculus,the structure of fractional order controller is constructed and the effect of controller parameters on the system performance is analyzed.The fractional order controller is applied to the control system design for guided projectiles and the fractional order control system is also investigated.The results show that the fractional order controller has stronger robustness and anti-interference ability than the conventional PID controller.It can be applied to the control system of guided projectiles.The fractional order controller has better response characteristics than the conventional ones in both frequency and time domain.The results presented here are useful for the application of the fractional order controller to the control system of guided projectiles.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2011年第1期52-56,共5页
Journal of Nanjing University of Science and Technology
基金
南京理工大学科技发展基金(XKF09075)
南京理工大学卓越计划
紫金之星资助项目
江苏省"青蓝工程"资助项目
关键词
制导弹箭
分数阶控制
比例积分微分控制
控制系统
guided projectiles
fractional order control
proportional integral differential control
control system
