Modelling of Process Dynamics
动态过程建模
Dynamic Process Modeling
• What do we mean?
• Representing the dynamics of a continuous industrial process as a mathematical expression or
“model”
• Why do we want to do this?
• Because the model will enable us to predict the future behavior of the outputs of the process
• What’s the significance of that?
• Insight into the future permits better control decisions to be made now
Modeling - 2
动态过程建模
• 建模是什么意义呢
• 用数据或模型表达动态工业过程
• 为什么要这么做呢？
• 因为模型能让我们预测未来输出过程的表现
• 最终要的是什么
• 实现未来可允许的、同时现在能做的最优控制选择
Modeling - 3
AVEVA APC Models
Model-based
Predictive
Controller
AVEVA APC
Input/Output
Model
-ARX
-FIR
Datafile
(Process Response
Test)
Identification
G(s)
Transfer Function
Model
Transform
Control System
Design
Modeling - 4
AVEVA APC 模型
Model-based
Predictive
Controller
AVEVA APC
Input/Output
Model
-ARX
-FIR
Datafile
(Process Response
Test)
Identification
G(s)
Transfer Function
Model
Transform
Control System
Design
Modeling - 5
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