控制

Moreover,in this dissertation,a method ispresented to control safe basin with the fractal erosion,that is by the application ofthe weak parameter periodic perturbation with an optimal frequency to control thefractal erosion basin,and the analytical study shows that the essence of the methodis that the parameter periodic perturbation can be used to delay the occurrence ofhomoclinic tangencies.

并且在本文提出了一种对分形侵蚀安全域进行控制的方法，那就是应用具有最优频率的参数周期扰动对于已受到分形侵蚀的安全域加以控制，在理论分析中得到这种控制分形侵蚀安全域的方法实质上延缓了鞍点同宿相切的发生，同时考虑了外加噪声对控制后安全域的影响，得到这种控制方法具有很好的鲁棒性。

The multivariable constrained control software packages of some foreign software companies, which all center on predictive control techniques and integrated control, optimization and modeling together, have obtained great successful applications in hundreds of industrial enterprises involved in petrochemical, chemical, oil-refining and steel plants, and created distinct benefits.

国外几家控制与优化软件公司推出的以预测控制技术为核心的多变量约束控制软件包，集控制、优化及建模于一体，在国外获得了极大的成功，为成百上千的工业企业创造了巨大的经济效益，应用遍及石化、化工、炼油、钢铁等领域，成为当今最受关注的控制技术和软件。

Skyhook control, ON-OFF control which is based on skyhook control thought and fuzzy logic control have been studied and the time domain and frequency domain simulation programme was realized using Malab high-level language, Simulink and corresponding toolbox.

仿真结果表明Skyhook控制、ON-OFF控制和模糊逻辑控制方法都能在合理的轮胎动载荷和悬架动行程的前提下提高车辆的乘坐舒适性，其中Skyhook控制和模糊逻辑控制方法对车辆行驶平顺性的改善尤为显著。

Mathematical model of the higher four level inverted pendulum is particularly educed in this paper.

其次，本文主要研究了倒立摆系统的各种控制方法，包括现代理论控制方法（极点配置法、线性二次型最优控制）、滑模变结构控制方法、两种智能控制方法。

Accordingly, it is important to explained the foundation controls a part to realize closed circuit to stabilize pilot meaning, pointed out controlling a method without the model is closed circuit of implementation of fundamental control part stable pilot good method.

因此，说明了基础控制部分实现闭环稳定控制的重要意义，指出了无模型控制方法是基础控制部分实现闭环稳定控制的好方法。

The difference between china poultry industry and international standard is becoming smaller and smaller in breeder,disease control,nutrition and technique after rapid development in china ,but the difference is still big on poultry house environmental control,The effection of house environment improvement on chick health and performance is overlooked . Poultry house environmental control is becoming more and more important in poultry industry.

随着近年来养鸡业的迅猛发展，目前我国在品种、营养、疾病控制和饲养技术方面与国际先进水平的差距逐渐缩小，但在环境控制方面还存在着很大的差距，环境控制对家禽生产的影响一直没有得到应有的重视，在国内目前基本解决了家禽良种引进、烈性传染病控制、营养和饲养技术等问题的前提下，鸡舍环境控制在家禽生产中起着非常重要的作用。

According to the characteristics of gas-collector pressure and suction-control of blower system for coke oven in Xiangtan iron and steel company, primary system is developed. Fuzzy control technology and routine PID technology are combined, and the control method of the pressure of gas collector in coke oven is given based on the fuzzy theory ,then decoupling control is adopted for coupling phenomenon.

针对湘钢焦炉集气管压力和鼓冷系统吸力控制特点，对原有系统进行改造，将模糊控制技术和常规PID控制技术相结合，提出了一种基于模糊理论的焦炉集气管压力控制方法，结合相邻通道的波动引起的耦合现象，采用模糊解耦原则进行解耦控制。

According to the characteristics of gas-collector pressure and suction-control of blower system for coke oven in Xiangtan iron and steel company, primary system is developed. Fuzzy control technology and routine PID technology are combined, and the control method of the pressure of gas collector in coke oven is given based on the fuzzy theory ,then decoupling control is adopted for coupling phenomenon.

中文摘要：针对湘钢焦炉集气管压力和鼓冷系统吸力控制特点，对原有系统进行改造，将模糊控制技术和常规PID控制技术相结合，提出了一种基于模糊理论的焦炉集气管压力控制方法，结合相邻通道的波动引起的耦合现象，采用模糊解耦原则进行解耦控制。

The oil pump control system of governor oil pressure unit at power plant of Naban reservoir was modified with contact-free,soft start,intelligent pressure control unit,which not only remove the defects from traditional oil pump motor control mode consisting of relay and contactor,but also upgrade the control automation degree,improve starting performance and permit convenient operation.

通过利用无触点的智能软启动压力控制装置对那板水库电站调速器油压装置油泵控制系统的改造，解决了油泵电动机采用传统继电器———接触器控制方式所存在诸多缺陷，提高控制的自动化程度，改善启动性能，方便操控，经过3年多的应用，运行良好，为水电站的调速器油压装置油泵控制提供了一个好的借鉴。

The first control strategy has the disadvantages such as a large amount of computations, inherent pull-out torque, difficulties in realizing the adaptive control and so forth. For the rotor flux-oriented control, changing of load or the rotor speed will result in increased or decreased torque winding currents, which will change the magnetic field distribution in the air gap. Assumption that magnetic field is approximately equal to that generated by torque windings will affect the levitation performances.

分析表明：气隙磁场定向控制中存在最大转矩限制、非线性机械特性，难以实现自适应控制等问题；对转子磁场定向控制而言，当负载或转速变化时，由于转矩控制绕组转矩电流变化将导致气隙磁场发生改变，如果仍以转子磁场近似替代气隙磁场作为悬浮依据，必然影响到悬浮控制性能。

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。