The article also lays stress on proposing a practical open loop control system. The system is of many advantages, such as simple structure, low cost, and reliable operation, etc.
并着重提出了一种实用的开环控制系统，因它具有结构简单、成本低、工作可靠等特点。
At last, experiment of open loop and closed loop system are completed, which is in accord with the simulation result. It verified feasibility and advantage of the control scheme.
最后完成了系统的开环和闭环实验，取得了和仿真一致的结果，从而验证了控制方案的可行性和优越性。
A kind of the pulse control mode, the drive and motor closed loop, but not to the numerical control system, the feedback device, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
This design is the use of leading correction principle, finally meet the performance index of a control system open loop gain, phase margin, angular frequency requirements.
本设计利用超前校正原理，最终满足对控制系统性能指标开环放大系数、相角裕量、截止角频率的要求。
Firstly, during the period of open loop control, system traces the change of LPG injection of engine quickly by checking the pre-set two-dimension MAP if conditions of engine are changed suddenly.
首先，在开环控制部分，如果发动机发生突变，系统利用制好的二维MAP图查找所需喷气量，快速跟踪发动机喷气量的变化。
Fig. 37.1 is a general representation of an open-loop control system.
图37.1是对开环控制系统的一般性表示。
This paper deals with the stability improvement of open-loop excitation system by using feedforward compensation control.
本文论述了用前馈补偿控制提高开环励磁系统稳定性问题。
Computer use of vertical feed system for open-loop control.
利用微机对纵进给系统进行开环控制。
A rotor flux oriented control system with flux and open-loop speed estimators is described. The key module of this system is the flux and speed estimator.
介绍了一种采用磁链和开环速度估算器的转子磁场定向的控制系统，系统设计的的关键问题是磁链的观测和速度的准确估算。
With the help of the method, the control accuracy similar to that of close loop system can be obtained and the system has the same stability as that of open loop system.
采用这种控制方式，可以获得类似闭环系统的控制精度和开环系统的稳定性。
The important features of the system are:it possesses not only the control precision of the fully closed-loop systems, but also the stability of the open loop systems.
该系统可对各种类型的数控机床实现以高精度、高稳定性和优良的动态性能为特征的全闭环位置控制。
It proves that the controller is flexible reliable and easy to use, and can be used in other open - loop and accurate step motor control system.
结果表明，该步进电机控制器具有控制灵活，安全可靠，抗干扰性能好等优点，也能应用于机器人等其它步进电机实现开环控制系统要求灵活性且精度较高的场合。
To design the control strategy for heating metal, the open loop system model of the metal heat conductor shall be obtained first.
设计金属加热的控制策略，首先要获得金属导热体的开环系统模型。
A kind of the use of impulsive control mode, the drive and motor closed loop, but not feedback to the numerical control system, this drive, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
In this paper, the structural characteristics, parameters calculation, performance analysis, open loop hydraulic system with integrated plug in valves and PLC control system are presented.
介绍了该新型程控液压模锻锤结构特点、参数计算、性能分析、插装阀集成开式液压系统和PLC程序控制系统。
The gauge control system especial AGC system can deteriorate open loop control of plate shape especially when the mill rigidity is small, making edge wave of rolling plate.
厚度控制系统特别是AGC系统对中厚板板形的开环控制有一定影响，特别是刚度偏小的轧机在轧制宽薄中厚板时容易出现边浪。
Magnetic bearing control system is an equipment involved electromagnetic, control theory, mechanical theory, rotor dynamics and other subjects of the complex non-linear open-loop unstable system.
磁轴承控制系统是一个涉及了电磁学、控制科学、机械科学以及转子动力学等多门学科的复杂非线性开环不稳定系统。
On the basis of three-phase inverting circuit, this paper describes how to make the control method of open loop system in closed loop system.
以三相逆变电路为基础，阐述了如何将开环系统的控制方法用于闭环系统，并且介绍了这种新的控制方法在实际中的应用，证明了该方法的有效性。
Then, a new sufficient condition for the stability of open-loop system is proposed based on linear matrix inequality (LMI); and a fuzzy controller is designed via non-quadratic PDC control law.
然后，基于一系列线性矩阵不等式，得到了开环系统稳定的充分条件，进而又基于非二次PD C控制律，设计出了模糊控制器。
This method can not only control size of the starting current efficiently but also improve open-loop starting performance of BLDCM, so improve the reliability of the system.
该起动控制方法不但有能效控制起动电流大小，而且改善了BLD—CM开环起动性能，提高了系统的可靠性。
A practical open-loop control system for the three-phase grid inverter was also developed in the work.
实际开发了一套针对三相并网逆变器的开环控制系统。
In static design, we choose important system elements and determine system control scheme, which provide good basis for the open-loop control and closed-loop control.
通过静态设计、系统元件的选型，静态特性的分析和控制方案的选择，为开环控制打下基础。
Based on the dual function S-rough set and system law generation, disturb recognition criteria of the open-loop control is given.
利用函数单向s -粗集对偶，结合系统规律生成，提出了开环控制系统的扰动识别准则，并给出了开环控制系统扰动识别的结构图和具体实现过程。
Finally, relative experiments of 3-phase ac motor SVPWM open-loop control are achieved using this experiment platform, the testing result of system comes to the request designed.
最后，在该实验平台上实现了三相交流电动机SVPWM算法的开环控制实验，实验结果表明系统达到了设计要求。
It includes the function of the control system, the fundamental theory of microcomputer control of a filament winding machine, the construction of open-loop and closed-loop systems and conclusions.
计算机控制纤维缠绕的基本原理；开环系统和闭环系统的组成以及研究的结论。
Open-loop unstable system with time delay is difficult to control using routine control methods.
开环不稳定时滞系统是工业现场中常见的一类被控过程，这类系统控制难度高，控制精度难以保证。
Open-loop unstable system with time delay is difficult to control using routine control methods.
开环不稳定时滞系统是工业现场中常见的一类被控过程，这类系统控制难度高，控制精度难以保证。
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