1. Introduction. Added value of a DT? Flashcards
Added Value of a DT? - Humman Interaction
How does the application layer can queries the DT. WITH HUMAN INTRVENTION
The application layer (AL) queries the Digital Twin, and convert this into
actionable information. By HMI and also (dashboarding - virtual reality - augmented reality)
Added value of a Digital Twin?-AUTOMATED INTERACTION WITH THE REAL ASSET
Examples of automated interactions, and where “you”are situated in the DT
**Examples **of automated interaction
- Automatic emergency stop
- Setting update
- Software update
- Adaptive control
OVERVIEW OF COMMON CONTROL METHODS
Example of controllers
What is the PID controller - for which systems are the best controllers- what is the step response and how to tune a PID controller
How to tune a PID controller?
- Manual & intuitive with step response shaping
- Tune for desired bandwidth and phase margin
- Ziegler-Nichols, Astrom-Hagglund, Kaiser-Rajka
- Root locus method
- Automatic tuners
- Frequency domain: Bode, Nyquist & Nichols
- Great for Linear Time-Invariant systems!
What is a FEEDFORWARD, and what are the advantages?
Feedforward relieves control effort of PID controller
- PID controller then only acts on the model error
- Feedforward signal ideally comes from model info
- Can significantly improve control performance
What is a cascade control
What is a Model Predictive Control
What are the motion profiles?
The input of the control for motion applications
ADAPTIVE CONTROL USING A DIGITAL TWIN
What is ADAPTIVE CONTROL
USING A DIGITAL TWIN
Control that is needed for systems tyme-varying parameters and dynamics
Differences between Robust Control en Adaptive Control
ADAPTIVE CONTROL
How to implement the Gain Scheduling
MPC and DT (model predictive control)
How does the MPC acts in the DT
ONLINE TRAJECTORY OPTIMIZATION
Conclucions Automated Interaction with DT?
Interaction via a human operator/designer and value creation
Which of information is presente to the human, what for and how?
Go from data to information: The information is presented through HMI (data to information) or dashboads or VR or AR
Industrially relevant examples:
Can the DT be deployed on different layers?
Depending on the value of the assets, the DT can be deployed on
different levels
