查询词典 automatic control theory

To introduce the mould level measurement and automatic control for the thin slab continuous caster in Lanzhou Iron and Steel Plant, put emphasis on the working principle, technical features, installation and maintenance of the laser measurement system and simply describe the automatic control of the mould level.

介绍兰州钢厂薄板坯连铸结晶器液位测量与自动控制，重点介绍激光法测量的工作原理、技术特点、安装和维护，并对液位自动控制作了简要介绍。

Company production can be divided into the filter press type manual jack, manual hydraulic, automatic drawing board, PC to control the form of filter specifications have 315 315,420 420,630 630,800 800,810 810,1000 1000,1250 1250,1000 1500,1500 1500,1600 1600,1500 2000,2000 2000,2000 2500 and so has the work pressure 0.6MPa, 1.0MPa, 1.6MPa, 2.0MPa , 2.5MPa, 4MPa, several grades, filters can be adapted to the temperature -40-120 , filtration area of 0.16 square meters from -1600 square meters, able to meet the needs of different users, the company's PC production control, set automatically pull board, Qu Zhang beat, water washing, automatic hydraulic system, etc.

公司生产的压滤机可分为手动千斤顶式、手动液压式、自动拉板、PC控制等形式，滤板规格有315×315，420×420，630×630，800×800，810×810，1000×1000，1250×1250，1000×1500，1500×1500，1600×1600，1500×2000，2000×2000，2000×2500等，工作压力有0.6MPa， 1.0MPa， 1.6MPa， 2.0MPa， 2.5MPa， 4MPa，等几个档次，过滤温度可适应-40-120℃，过滤面积从0.16平方米-1600平方米，能满足各种不同用户的需要，公司生产的PC控制，集自动拉板、曲张振打、水冲洗、自动接液系统等多项功能于一体的全自动压滤机，适用于现代化的企业使用。

Based on the geometrical optics, the thesis first analyzes the basic principles of out-of-focus, summarizes the basic flow of automatic focusing, points out that focusing evaluation function and focusing control strategy are two basic technologies in automatic focusing of image method. The thesis lists most of focusing evaluation functions and explains how to implement different control strategies.

本文首先用几何光学理论分析了离焦产生的基本原理，深入研究了图像法自动调焦的关键技术，指出调焦评价函数和调焦控制策略的选取是图像法自动调焦的两项核心技术，并按类别介绍了已有的各种调焦评价函数、控制策略实现方法。

Along with advancement of industrial control demand, development of control theory and computer technology, a predictive control algorism is produced with effective control and strong robustness, which is applicable to complex industrial processes and the control system, and is successful applied in petroleum, chemical industry, metallurgy and mechanism, and have a good prospect in application.

随着工业控制要求的提高及控制理论与计算机技术的发展，产生了控制效果好、鲁棒性强，适用于复杂的工业过程的预测控制算法，并已在石油、化工、冶金、机械等工业领域的控制系统中得到了成功的应用，是一类很有发展前景的新型计算机控制算法。

The propulsion control system is one of the four subsystems of theMaglev vehicle. The propulsion control theory with field-oriented control is the key technology of the propulsion control system. In this paper,the characteristics of Maglev vehicle propulsion control system with FOC aredeeply studied and analyzed.

牵引控制系统是高速磁悬浮列车四大子系统之一，基于磁场定向控制理论的牵引力控制又是牵引控制系统的核心技术，本文深入研究和分析了在不同磁场定向控制方式下高速磁悬浮列车的牵引特性。

How to improve the built-in control system that the contemporary business administered below the mechanism , the writer thinks :Built-in control theory research ought to be strengthened ,Establishes to amplify the standardized setup of built-in control ; Fix up once more our country board of directors authority setup ,Introduce from elsewhere independent director's system ,Improving law of corporation man administers the composition ;Strengthening the business crisis administer consciousness ,Establish the business hazard control system ;The implementation with artificially originally the human resource administers the tactics ;Strengthen the independence that the inside audited ,Establish together with the audit pattern of inside that the contemporary business system is adaptable each other ,Business built-in control effect and effectiveness are lifted .

如何完善现代企业治理机制下的内部控制制度，笔者认为：应加强内部控制理论的研究，建立健全内部控制的标准体系；重新安排我国董事会的权力格局，引进独立董事制度，完善公司法人治理结构；加强企业危机管理意识，建立企业风险控制系统；推行以人为本的人力资源管理策略；加强内部审计的独立性，建立与现代企业制度相适应的内部审计模式，提高企业内部控制的效果和效率。

The major contributions of this thesis include:(1) proposing a new kind of optimal feedback control, followed by its application to chaos targeting and stabilization of high period unstable periodic orbits ;(2) stabilization of unstable fixed point in chaotic systems using some kind of nonlinear feedback control, and giving sufficient condition for the existence of the controller as well as the synthesis procedure;(3) analyzing the robustness of optimal control in chaotic Lur'e systems under the help of H〓 control theory;(4) finally and most importantly, introducing a novel method of information storage based on discrete time chaotic systems as the application of chaos control, and systematically studying different schemata for implementation, providing a theoretic basis for the design of such new kind of information storage devices with large capacity.

本文的主要工作包括，提出一种新的最优反馈控制，并将之应用于混沌引导控制及混沌系统高周期不稳定周期轨道的镇定控制；针对不动点镇定控制的一类非线性反馈控制器，文中给出该类反馈控制存在的充分条件及设计步骤；文中还利用非线性H〓鲁棒控制理论对Lur'e混沌系统中的最优线性反馈控制进行鲁棒性分析；最后，也是最重要的，作为混沌控制的应用，文中提出一种基于离散时间混沌系统的信息存储方法，系统地分析、研究了实现这种信息存储的不同方案，为以后进行这种新型大容量存储器设计提供了一定的理论依据。

And control problems such as optimal import rate control, optimal harvesting control, optimal birth control are investigated. By means of nonlinear functional analysis, differential equations, integral equations, and modern control theory, a number of research results are obtained, which are theoretically valuable and provide a solid ground for the practical use of our models.

本文系统讨论了几类年龄依赖的单种群和多种群动力系统，综合应用非线性泛函分析、微分方程、积分方程以及分布参数系统控制论等理论与方法，深入地研究了这些系统的解的存在性、唯一性以及非负有界性；研究了这些种群动力系统的最优输入率、收获率和出生率控制问题，获得了一批重要的理论成果。

Direct torque control is another high performance control technique of AC motor, it discard the decouple idea of vector control, but adapt flux oriented control and transient space vector theory, directly control stator flux and torque, it has the advantage of rapid torque response and less relying on stator parameters, but has the disadvantage of bigger torque ripple.

直接转矩控制技术是继矢量控制技术之后的又一种交流电机高性能控制技术，它摈弃了矢量控制中解耦的控制思想，采用定子磁链定向和瞬时空间矢量理论，直接对电机定子磁链和转矩进行控制，具有转矩响应快、对电机参数依赖小的优点，但它的不足之处就是存在转矩脉动。

This paper studies application of predictive control algorithm in industrial furnace temperature control from the instance of glass furnace. In this paper, after introducing the research and development of intellective control algorithm of industrial furnace temperature control we simply analyze the basic theory and prepotency of predictive control algorithm.

论文以玻璃池炉为例研究了预测控制算法在工业窑炉温度控制中的应用，介绍了目前工业窑炉温度控制的智能控制算法研究与发展，同时简单分析了预测控制算法的基本理论及其优势。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。