feed forward principle

Application of feedforward and feedback control strategy to rolling line of control cooling in Baosteel Wiring Mill;

前馈和反馈相结合的控制策略在宝钢线材厂控冷轧线上的应用实践

A design of feedforward attemperator control system for a pressure reducer and attemperator;

减温减压装置前馈温度控制系统设计

Digital Feedforward Control Based on Pade Approximation;

高精度伺服系统基于Pade近似的数字前馈控制器

The pH value is controlled effectively using computer processing system,feed forward mathematical mode control,feed backward mathematical mode feedback modification and auto-control neutralization agent addition.

研究了废水(工业废水)pH控制过程中的明显非线性与时滞性特点,探讨了采用计算机处理系统,利用前馈数学模型控制,后馈数学模型反馈修正、自动控制中和剂投加量的方法,来有效控制废水的pH值。

On this foundation,in view of features that the elevator starts and stops frequently,the ideal starting time parameter and the value of feed forward adjustment when input power .

在此基础上,根据电梯起停频繁的特点,利用直流母线电压变化率推导出起动时刻理想初始参数和在输入功率变化时的前馈调节量,提高了系统的快速性。

A compound control system that was composed of PID control unit working with static feed forward supported by a miniature programmable logic controller as hardware platform was discussed in this paper.

对于热交换器等系统,普通PID控制难以满足工艺要求,为寻找经济实用的途径,探讨了以微型PLC为硬件平台,通过软件的方式实现静态前馈和PID控制组成的复合控制系统,对工业过程中热交换器温度进行有效的控制,在保证较高性价比的前提下,实现复合控制和逻辑控制的较好结合。

Application of neural network technology on feed-forward control of main-steam temperature;

神经网络技术在主蒸汽温度控制系统前馈中的应用

Two methods were used to improved annealing quality, one was pulse-burning technology which could improve burning efficiency and make an uniformed temperature pattern, another was a feed-forward model combined with PID controller applied for different annealing stage.

以模具钢热处理炉设计为背景,在采用国外先进集散控制系统结构的基础上,针对温度控制问题,一方面通过采用脉冲燃烧方案提高燃烧效率和温度场的均匀性;另一方面,针对不同的退火阶段设计了前馈模型,结合PID算法有效提高了温度控制精度,满足预硬化热处理的要求。

Aiming at the influence of the inertia of a clean-room manipulater on the system performance,based on creating the relation of inertia and position using the kinetic energy formula,the paper presents a kind of control strategy with position PI closed loop and feed-forward paraneter tuning.

针对洁净机器人手臂的转动惯量对系统动态性能的影响,在利用动能公式分析得到其转动惯量与位置关系的基础上,提出了一种位置PI闭环加前馈参数整定的控制方法。

To the defects of existed methods for furnace temperature setting,an improved strategy of dynamical optimization for furnace temperature is proposed based on the feed forward compensation.

针对加热炉优化控制中大回路反馈补偿存在延迟,不能及时反应工况变化的特点,提出一种基于前馈补偿的加热炉炉温设定值的动态优化控制策略。

The control strategy possesses feed forward compensation ability for steam flow disturbance by introducing the steam flow signal to neural network controller.

将蒸汽流量信号作为神经网络的输入,使系统具有前馈补偿能力。

Precision servo control of GMA based on compounding feedforward compensation;

复合前馈补偿的超磁致伸缩执行器精密伺服控制

A High Performance CMOS Operational Amplifier Implemented with Feedforward Compensation Technology;

一种基于前馈补偿技术的高性能CMOS运算放大器

Based on the model of strip in cooling process,feedforward compensation was implemented for the presetting model.

以热轧层流冷却系统为研究对象,对如何提高带钢卷取温度控制精度进行了研究;在带钢冷却模型的基础上,对预设定模块进行了前馈补偿;考虑模型的不确定性和大时滞特性,采用模糊Smith预估器提高了反馈控制的精度;结果证明所采用的这些措施大大提高了卷取温度的控制精度。