最优控制

Ii The problems of optimal control of piecewise linear affine descriptor systems are studied by using some elementary matrix transformations and line matrix inequalities.

二、运用初等矩阵变换和线性矩阵不等式，初步研究了分段线性仿射广义系统的二次最优控制问题，得到了系统二次最优控制的上界、下界，估计成立的条件。

The controllability and observability of the original system are not changed by the equivalent transformation.

在最优控制律存在的条件下，证明了此最优控制律能使系统最后的跟踪误差为零。

The second chapter extends its cost function of original model, and give its optimal policy and explicit value function.

论文分为四章：第一章绪论，主要介绍了随机最优控制的一些发展情况及一些常见的随机最优控制模型。

Optimal control of DSS formation adjusting based on Hamilton Mechanics and generating function method was investigated. An iterative way of solving the two-point boundary value problem induced by optimal control by relative motion generating function approximation was proposed.

基于考虑J_2项的DSS相对运动Hamilton力学模型和生成函数方法研究了DSS构形调整的最优控制问题，提出了求解最优控制两点边值问题的相对运动生成函数近似迭代方法。

Based on the characteristics of the electrohydraulic servo system,the transient optimal control method using the p Q character of servo valve as constraint condition of inequality is presented.

文章分析了线性二次型最优控制不适用于电液伺服主动抗振系统的原因，并根据电液伺服抗振系统特点，提出了以伺服 p- Q特性各不等式约束条件的瞬时最优控制方法。

For a single machine infinite bus power system with STATCOM connected at the electrical mid point of the equivalent transmission line, a unified and extended linear state space system model is firstly formulated by linearizing around the typical operating point.

针对单机无穷大母线联络线中间带静止同步补偿器的电力系统，建立了统一的状态空间模型；并在此基础上，应用信息结构约束下的LQ最优控制理论和算法，得到输出反馈的STATCOM与机组励磁的最优分散协调控制器；应用数字仿真研究它们在系统受到大小扰动下的控制性能和特点，并与传统的电压偏差PID励磁调节器进行了比较。

Homing project research of parafoil system on optimal control was developed. And the characters of it were analyzed and summarized. To solve the optimal control problem, some methods about pre-solver analysis and treatment were put forward, such as moving equations translated into frame of wind and normalized.

在最优控制的求解中，提出了向风坐标系转化、无量纲化等解前分析的思想，简化了计算，方便了加权因子的选择，使目标点可达与不可达的翼伞系统归航轨迹最优控制问题得到了统一的求解。

A control strategy based on optimal control and optimal filter for dynamic voltage restorer was proposed.

提出基于最优控制和最优滤波的动态电压恢复器控制策略。

Viability Theory is applied to the optimal control problem for this class of hybrid dynamic time varying systems in this dissertation for the first time. And the statement about a characterization of the extended value functions as the unique lower semicontinuous solution to a Bensoussan-Lions type QVI is proved.

本文首次将生存理论应用到这一复杂系统的最优控制问题中来，得到了最优控制问题中的值函数是一类拟变分不等式唯一的下半连续解的重要结论。

At first, two optimal control problems for hybrid dynamic time-varying systems with free-terminal and terminal constraint are considered, value functions of these two optimal problems are respectively proved to be the unique viscosity solution and the unique lower semicontinuous solution to a type of Quasi-Variational Inequality and the relationship between them is addressed.

本文首先分别考虑了有限时间混合动态时变系统在终端自由和终端约束两种情形下的最优控制问题，得到了最优控制问题的解在这两种情形下分别是一类拟变分不等式的唯一的粘性解和唯一的下半连续解的结论，并给出了它们之间的关系。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。