查询词典 controlled variable

The method of slide-mode variable structure control is such a strategy that is characterized of low mathematical model precision, insensitiveness to system parameter variation and external disturbances, omission of parameter identifications, fast dynamic response and easy implementation. These advantages make it suitable to high performance vector controlled AC motor drives.

滑模变结构控制是一种强鲁棒性的控制方法，对系统数学模型精度要求不高，具有快速响应、对参数及外部扰动变化不敏感、无需系统在线辨识，实现简单而且很适合计算机实现等优点，因此，很适合高性能的交流电机矢量控制系统。

This paper uses a new method in which a intermediate variable is used to solve the problem of the controlled circuits. This method can make the calculation simpler.

本文介绍一种通过计算中间变量来求解含受控源电路的方法，这种方法可使含受控源电路的分析计算更加简便、灵活。

The industry control computer correlation controlled variable instruction is requests the movement, the location parameter interpolation according to engineer which the movement and the location parameter and measured, after the analysis computation to obtain, again bequeaths the servo motor by labor controlling machine the instruction the driver.

工业控制计算机的相关控制参数指令是根据工程师要求运动和位置参数和所测的运动、位置参数的差值，分析计算后获得的，再由工控机将指令传给执行电动机的驱动器。

That is, the controller is not making decision of how to maintain the controlled variable at set point.

开环控制的另一个例子是控制器的动作不会影响测量量。

This paper presents a stability criterion for design iterative learning controller. From the criterion,one can change the design problem into finding a positive definite discrete matrix kernel. It has been shown that what kind of variable can be controlled by the iterative learning,(2) and what kind of filter can be included into the controller.

摘要提出了一种针对自学习控制的稳定性判据，应用这一稳定性判据将自学习控制器的设计转化为寻找正定离散矩阵核，从而回答了两个问题，其一什么样的量可以通过自学习叠代加以控制，其二学习叠代中什么样的滤波环节的引入不会影响学习收敛性。

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

In this paper the hydraulic variable pitch system was introduced and the pitch controlled software was designed.

本文介绍了液压变桨距系统的工作原理，设计了变桨控制器的软件系统。

An electronic control module is coupled to an electrically controlled variable flow rate pneumatic valve to control the flow rate therethrough.

电子控制模块联接到所述流速可变的电控气动阀上以控制通过其的流速。

Aim To reduce the error of the valve controlled system with energy saving hydraulic pump, which is caused by variable gain characteristic.

目的减少由于节能液压源下的阀控系统变增益带来的跟踪误差。

Energy saving hydraulic pump ; valve controlled system ; tracking control ; variable gain ; feedforward compensation

节能液压源；阀控系统；跟踪控制；变增益；前馈补偿

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。