300棒材生产线精整区自动控制系统改造

针对300棒材机组半连轧生产线精整设备落后的问题,介绍其自动控制系统的改造方案。     

风机冷风保安控制系统优化

介绍菜钢型钢AV80风机冷风保安控制系统的优化改造,以增加其控制安全性及可靠性.     

基于仿控一体化系统的PCS实时控制研究

介绍基于数字DSP2812的PCS主电路原理和控制方法,并由该电路拓扑结构建立数学方程式与仿真的统一模型,使用MATLAB中的Embedded Coder工具箱,对该系统进行实时仿真和直接生成控制代码,进而实现PCS测控算法和动态过程的仿真与控制一体化设计.     

Guaranteed transient performance based control with input saturation for near space vehicles

This paper describes the design of guaranteed transient performance based attitude control for the near space vehicle(NSV)with control input saturation using the backstepping method.To improve the robust controllability of the NSV,the parameter adaptive method is used to tackle the integrated effect of unknown time-varying disturbance and control input saturation.Based on the backstepping technique and parameter estimated outputs,a robust attitude control scheme is proposed for the NSV with input saturation.A novel robust attitude control scheme is then proposed based on a prescribed performance bound(PPB)which characterizes the convergence rate and maximum overshoot of the attitude tracking error.The closed-loop system stability under both the developed robust attitude control schemes is proved using Lyapunov’s method and uniformly asymptotical convergence of all closed-loop signals is guaranteed.Finally,simulation results are given to show the effectiveness of both the proposed robust constrained attitude control schemes.     

Adaptive neural network control for a class of continuous stirred tank reactor systems

In this paper, the control problem of continuous stirred tank reactors （CSTR） is studied. The considered CSTR are required to contain unknown functions and unknown dead zone input. An adaptive controller that uses the neural networks （NNs） is provided to solve the unknown terms. The proposed approach overcomes the effect of the dead zone input. The dead zone input in the systems is compensated for by introducing a new Lyapunov form and Young＇s inequality. The backstepping procedure is exploited to implement controller design with adaptation laws. The stability is analyzed using Lyapunov method. The performance is examined for CSTR to confirm the effectiveness of the proposed approach based on computer simulation.     

分子筛自控系统原理

介绍分子筛的主要用途,阐述分子筛自动控制原理及故障形成原理.     

一种基于 PLC 和 HMI 的层压控制系统

为实现对铝基覆铜板层压工艺中两个关键参数温度和压力的自动控制,在采用分级蓄能层压工艺的基础上,设计一种基于三菱PLC和台达HMI的自动化层压控制系统。介绍控制系统的硬件组成、控制流程、HMI的软件设计及PID参数的整定。     

V型滤池电气自控系统应用分析

从控制网络的选择、机泵阀门设备的控制、供电系统设计及电气线缆布置等方面,介绍滤池电气控制系统的优化,以更好地实现滤池自动化控制.     

变电站综合自动化系统的安全措施

分析变电站综合自动化系统中测控装置和监控装置分别在出现故障情况下所需要采取的必要的安全措施,以保证综合自动化系统的正常运行。     

基于模糊PID控制的螺杆余热发电技术

介绍安钢第一炼轧厂螺杆余热蒸汽发电的工艺流程及技术特点,重点阐述其模糊PID控制原理。