dynamic process models

dynamic process models - Dynamic Process Models 1. 2. 3. 4....

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Dynamic Process Models 1. Introduction 2. State-space models 3. Transfer function models 4. Introduction to discrete-time models
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Theoretical Process Models Conservation equations » Fundamental basis for model development » » Nonlinear ODEs Constitutive equations » Semi-empirical relations required to complete model » Reaction rates, heat transfer rates, etc. » Nonlinear algebraic equations Parameter estimation » Needed to determine unknown parameters » Reaction rate constants, heat transfer coefficients, etc. » Yields parameter values that best fit available data
Background image of page 2
Empirical Process Models Obstructions to fundamental modeling » Limited understanding of physicochemical mechanisms » Lack of modeling expertise and/or limited development time » Resulting model unnecessarily complex for controller design Alternative: empirical modeling » Build model directly from dynamic data » Often use discrete-time models Unknown Process u ( t ) Input Empirical Model Measured output Predicted output + - Error y ( t ) ) ( ˆ t y e ( t )
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Empirical Modeling Process Data generation » Input sequence design » » Data analysis Model formulation » Determination of appropriate model form
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

dynamic process models - Dynamic Process Models 1. 2. 3. 4....

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online