摘要
本文针对纯滞后被控对象的动态过程,提出一种最优控制方法,即超前模型最优控制法。这种方法是以描述纯滞后对象的微分差分方程为基础,组成相应无滞后状态方程,从而形成超前模型。再以后者为基础,形成相应的最优控制 u~*(t)。相应于纯滞后对象,这样的最优控制是超前的,而且是开环控制的。这种方法的优点在于,较之常规的 PID 调节器,它对被控对象的τ/T值没有限制,而且可以获得较好的动态品质。仿真结果表明,这种方法是可行的。
To counter the dynamic process of controlled objects with pure delay,this paper puts
forward a time-leading model's optimal control method,that,by describing their
differential-difference equation,forms a corresponding state equation with no delay-the
time-leading model,from which derives the optimal control u(t),an open loop control.
Compared with conventional PID controller,it has such advantages as no restriction to τ/T
of controlled objects and providing much better dynamic eqalities.Simulation results proves it
feasible.
出处
《中国纺织大学学报》
CSCD
1992年第1期57-62,共6页
Journal of China Textile University
关键词
最优控制
纯滞后
超前模型
optimal control
pure delay
time-leading model
differential-difference equation
state equation
multi-kind control
