I am studying control theory (among other things) at a university. I know about linear, non-linear, continuous, discrete, robust, etc. control theory. However one thing that has never been adequately explained has been, how do we get the process model which to design the control for?
Simple electronic circuits and simple physical phenomena can be easily converted to mathematics, but what do I do if the real world process is very complicated? E.g. a multirotor RC helicopter or a space rover? There are probably two cases:
- Designing a new complicated process/device (and control for it).
- Designing a control for an existing complicated process/device.
Are there any organized or commonly used methods to get the model? Any books/resources/search term suggestions which I might find useful?