基于线性相关系数的RBV再入段增益调度设计

Design of RBV's Reentry Gain Scheduling Based on Linearly Dependent Coefficients

以可重复使用助推飞行器为对象,对再入段控制系统设计问题开展研究,就调度变量的选取提出了一种量化指标。利用极点配置与非线性直接优化组合整定法,设计单个控制器。基于调度策略以及参数迭代优化原理,证明了线性相关系数与控制能力之间的关系,并以线性相关系数为量化指标,设计增益调度系统,联合多个控制器来控制RBV再入过程。系统联合仿真结果表明,该方法可以有效提升调度系统的控制效果。

Aiming at the design of control system in the reentry process of reusable boosted vehicle （RBV）,a new quantity quota was proposed to choose the scheduling variables.The parameters of controller at some specific characteristic points were designed according to the pole assignment and the nonlinear direct optimization theory.The linearly dependency direct proportion to the control ability was testified through optimization iteration mechanism and scheduling strategy. According to the linearly dependency,the gain scheduling control system was designed to integrate several controllers to control the reentry process.The simulation results show that the strategy is effective,and the entire control system can meet the control requirements considera-bly.