串级控制

This design is the engineering of the instrumentation system to thereactor in PX Plant in which there are 4 single loop control, 2cascade control and all the controllers and control valves areselected and calculated carefully to the system, the CENTUM controlsystem will be used .

本设计对PX装置异构化单元反应器进行自动控制系统设计，其中共设计单回路系统4个，串级控制系统2个，并对控制系统所涉及到的控制器，控制阀等进行了选择且进行了相关的计算。

It has very important significance to research the polymerize technology and design control system.

在分析聚合工艺基础上，提出了控制系统的设计方案和实现方法，重点讨论了聚合釜温度串级控制和多电机总线控制。

Polymerize technology control system cascade control fieldbus control

聚合工艺；控制系统；串级控制；总线控制

Among many oter things,I Taking the machine rotation rate as a control quantity of the subcontrol circuit,a set of PID cascade control system was designed.

介绍连体膨胀压缩机的工作原理，并综合透平膨胀机和离心式压缩机的调节特点，结合连体膨胀压缩机的结构，采用压力反馈、进口节流的调节方式实现对系统恒压输出的控制，其中将机器的转速作为副控制回路的被控量，由此设计一套PID 串级控制系统。

This paper proposes an active tolerance scheme of cascaded control according to the thought of reconstruction of control law.

本文利用控制律重构设计的思想，提出了串级控制系统主动容错控制方案。

Simulation results showed that the control system performance is obviously better than the conventional cascade control.

仿真研究结果表明，这种方法具有全局优化的能力，对PID控制的参数优化设计是成功和有效的，系统动态品质明显优于通常的PID串级控制，系统控制性能得到了较大提高。

The effectiveness of this control strategy is being confirmed by a comparison with simulation results of PID cascade control and single model control.

与PID串级控制和单一模型控制的仿真结果对比，证实了本控制策略的有效性。

Oven temperature control is a big pure lag system. We have adopted the PID cascade control to solve this problem.

烘箱温度控制系统是一个大纯滞后控制系统，我们采用了PID串级控制方法，有效地解决了这个问题。

This problem can be solved by adopting an auto control scheme which combines expert control with traditional cascade control.

采用专家控制与传统串级控制相结合的加氯系统自动控制方案，能有效地解决上述问题。

After a deep research on the controlled object, Cascade control as the control method is chosen and professional operators 'experience is introduced into the heating control of the sheet.

本文在对被控对象做了深入研究的基础上，采用了串级控制的实现方法，并把现场操作人员丰富的实践经验引入到控制思想中，从而实现了对板材加热的控制。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。