Model based control system are usually discrete and the control signal is fed to a plant model first so it will be possible to predict what will happen next, accordingly an optimum value for the control signal is calculated before it is sent to the real plant.
Non-model based control techniques just react to the plant response and there is no estimation for what might happen in future this is one of the main issues that causes instability in delayed plants but model-based control system can handle such plants much better.
Nonlinear plants, time varying plant are also controlled much better by model based techniques. Model based Predict Control or MPC is one of the most famous model-based techniques.
Model based control system are usually discrete and the control signal is fed to a plant model first so it will be possible to predict what will happen next, accordingly an optimum value for the control signal is calculated before it is sent to the real plant.
Non-model based control techniques just react to the plant response and there is no estimation for what might happen in future this is one of the main issues that causes instability in delayed plants but model-based control system can handle such plants much better.
Nonlinear plants, time varying plant are also controlled much better by model based techniques. Model based Predict Control or MPC is one of the most famous model-based techniques.
Model based control systems gives you the perspective to view the system from a higher generic level. You could understand the skeletal and behavioural aspects for the system by looking at the models and can edit them. Model based systems aslo give you the insight to set you alarm conditions , events at a higher level.You can extract out the Monitoring and Control view of the system from the model based approach.
In non-model based systems, it becomes difficult to view the system from various perspectives like, control flow, command control etc. Not having model maked it implicit fir you to constrain the control functionality that depends on the realtime behaviour of the system.
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