查询词典 optimal control

A successive approximation algorithm of feedforward and feedback optimal control for linear systems with state time-delay affected by persistent disturbances is presented.

针对外部持续扰动下的线性时滞系统，提出一种前馈－反馈最优控制的逐次逼近算法。

The problem has been studied from two sides, firstly, from the viewpoint of applicability, based on the development strategic objectives of the oil company, with the aim to unify the exploration and extraction decisions of the resources in an integrated framework, and integrate the macro economic and technical objectives with micro economic and technical models of an oil well, an integrated non-linear dynamic optimal control model has been constructed, the objective is the benefit maximum of the exploration and extraction of the resources, and the optimalstrategies are obtained by changing the problem into a non-linear mathematical programming problem, on the other hand, from the more macro level, based on the analysis of the characteristics of the exploration and extraction activities of oil and gas resources, a conclusion is easily deduced that the procedure is full of randomicity, then discovering procedure of oil deposit is proved to be a Poisson process, and the reserves process is a supermartingale process, so the model of exploration discovery rate and the reserves model could be constructed.

其次从相对更宏观的层次上，通过对油气资源勘探与开发的特点分析，认为具有很强的随机性，证明了勘探活动发现油气藏的过程为一泊松过程，所发现的油气藏储量为一上鞅过程，在此基础上，建立了油气藏勘探发现率模型及储量模型，在油气价格服从几何布朗运动条件下，以油气开采收益最大化为目标，建立了一个油气资源勘探与开发的随机最优控制模型，采用动态规划方法得到了值函数的HJB方程，并针对方程的特点，以及方程及其变量所对应的经济学意义，对最优策略的求解进行了一些讨论。

What's more, using edited computer program based on symbolic method, we can get the value of Riccati equation (which is the key to solving the optimal control law).

通过编制的计算机应用程序，运用符号法对Riccati方程(求解最优控制律的核心方程)进行了数值求解。

According to the simulation theory between Structural Mechanics and Optimal Control Theory, the symplectic elastics is built after the symplectic space with the duality variables is introduced into the elastics.

根据结构力学与最优控制理论的模拟理论，将由原变量和其对偶变量组成的辛空间引入到弹性力学，从而使分离变量及辛本征函数展开的直接解析解法得以实施，形成了弹性力学求解辛体系。

Based on dual variable principle, a symplectic algorithm for solving optimal control problem of nonlinear dynamic system was proposed.

基于对偶变量变分原理提出了求解非线性动力学系统最优控制问题的一种保辛数值方法。

The terminal sliding mode controller is designed by using unit vector style; the switching function of the terminal sliding mode is designed by the quadratic optimal control theory.

采用单位向量控制形式的最终滑动模态控制器，并采用二次型最优控制理论设计最终滑动模态的切换函数。

Further I make use of the conclusion to solve a storage problem, get an optimal control policy between storage and need, and give the corresponding numerical results.And we also discuss the key word that dissolve this kind of problem: the construct and analysis of variational equation.

本论文的主要工作时对原问题的费用函数进行了扩展，使其归结到一类更广泛的函数上去，从而拓宽了其应用；并且将得出的结论引入存储问题，得到储量与需求间平衡的最佳效益模型的最优控制策略，并给出相应的数值结果。

Optimal control of antagonistic muscle stiffness during voluntary movements, Biol Cybern, 1994,71:123～135

此时关节保持平衡点不动，关节总力矩为0，但有一定的刚度。

The organization of heterogenic reflexes among muscles crossing the ankle joint in the decerebrate cat, J Physiol, 1989,410:463～477［6］ Lan N, Crago PE. Optimal control of antagonistic muscle stiffness during voluntary movements, Biol Cybern, 1994,71:123～135

从仿真结果可以看出，对于闭环α-γ平衡点控制模型，在给定自反射、互抑制、闰绍细胞回路增益和γ运动神经元激励条件下，系统终能达到一个稳定的输出。

Nichols TR. The organization of heterogenic reflexes among muscles crossing the ankle joint in the decerebrate cat, J Physiol, 1989,410:463～477［6］ Lan N, Crago PE. Optimal control of antagonistic muscle stiffness during voluntary movements, Biol Cybern, 1994,71:123～135

从仿真结果可以近视看出，对于闭环α-γ平衡点控制模型，在给定自反射、互抑制、闰绍治愈细胞回路增益和γ运动丰满传染病神经元激励条件下，系统终能达到一个稳定的输出。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。