这些元素可被分为三类:
1.变量模块,包括:
•三种类型的输入模块:MV(操作变量),DV(干扰变量)和UNM(不可测量干扰);
•包含输出端口(POV之间的连接)的输出模块。
2.系统相关的模块,包括:
•包含了部分整体模型的子系统模块。子系统通过输入/输出端口(具体化为子系统内部作为输入/输出连接器(锚))与外部模块连接。
•InPort(输入端口)和OutPort(输出端口)是有效地具体化子系统与外部模块连接的模块。
• MIMO模块则用于将多输入-多输出传递函数归并入单个管理矩阵中。
3.不同的传递函数运算符根据各自的公式和合适的描述列在下表。
| | |
| ------------- |:-------------:| :-----:|
|纯增益(非因果)模块|
|延时模块 |
| 一阶模块 |
| 二阶模块 |
|斜坡模块(水平)|
|零增益模块|
|PID模块|
|求和模块 |
要使用“SMOCPro文库目录”,用户必须:
1.单击要使用的模块;
2.按住鼠标选择按钮(左键)并将元素拖到模型构建窗口;
3.松开鼠标按钮;
4.使用工具栏中的工具进行连接,调整和执行元素的其它操作。
文库窗口菜单
若要访问文库窗口菜单,当光标处于目录窗口时单击鼠标右键。可用的菜单是:
|Library Window Menu(文库窗口菜单)||
| ------------- |:-------------:| :-----:|
|
原文:
These elements can be classified into three categories:
1.The variable blocks consisting of:
• Three types of input blocks: MV (Manipulated Variable), DV (Disturbance Variable) and UNM (Unmeasured Disturbance)
• The output blocks with an output port for POV-to-POV links
- The system related blocks consisting of:
• The sub-system block that contains part of the overall model. A subsystem is in connection with the outside blocks via input/output ports that are materialized inside the subsystem as input/output connectors (or anchors).
• The InPort and OutPort are blocks that effectively materialize a sub-system’s connection to the outside blocks.
• The MIMO block is utilized to lump Multiple-Input-Multiple-Output transfer functions into a single manageable matrix. - The different transfer function operators listed on the table below with their respective formulas and applicable descriptions.
Pure (non-causal) gain block
Delay block
First order block
Second order block
The β parameter allows for modelling overshoot and/or inverse responses.
Ramp block (levels)
A pure integrator (consistent with AIDAPro) can be defined by changing the type of a block inside the model window itself.
NOTE: As of PCTP 2009 the default input horizon (compaction point) has been changed from 1 to 100 for a ramp-only model. The user has to manually adjust this value to a desired one.
Zero gain block
The zero gain blocks can be used to mimic the closed-loop process dynamics.
PID block
The quantities (P, I, D) are the gains of the proportional, integral and derivative actions, respectively. In this application, the derivative action is applied on the error from set point.
Sum block
To use the “SMOCPro Library Catalogue,” the user must: - Click on the block to be used.
- Hold the select (left) mouse button down and drag the element to the model builder widow.
- Release the mouse button.
- Use the tools in the toolbar to link, align and perform other actions with the elements.
Library Window Menus
To access the library window menus, click the right mouse button when the cursor is in the catalogue window. The available menus are:
Library Window Menu
Copy – Copy the selected element.
Paste – Paste an element on the active window that has been previously copied.
Remove – Remove the element from the active window.
View – Open the View submenu to customize the window’s appearance.
Icon – Open the Icon submenu to customize icons.
Catalogue – Open the Catalogue submenu to work with catalogues.
2016.7.25