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After the basic PID controller, what would you consider the most useful tools for control?
by dimatura 6y ago
After the basic PID controller, what would you consider the most useful tools for control?
- tshaddox 6y agoI know virtually nothing about control theory, but when I was into RC quadcopters back around 2011 I know Kalman filters got name dropped a lot. https://en.wikipedia.org/wiki/Kalman_filter https://en.wikipedia.org/wiki/Kalman_filter
- aiprof 6y agoKalman filters and variations are covered in Ch. 19. It can be viewed as a special case of belief updating in a partially observable Markov decision process.
- thx2099100 6y agothe next step after PID control is state-space based control. it's not a single tool but more of a framework. it goes beyond frequency based representations and can also model non-linear control problems. the kalman filter is an example of the use of this framework where it's combined with statistics. the problem in control theory though is that once you want to go beyond linear control things get very difficult, most of the literature seems to be about finding clever ways of approximating your problem into something linear.
- 6gvONxR4sf7o 6y agoCheck out model predictive control. And LQR if you haven’t learned that yet. And the bazillion state estimation techniques that start with Kalman filtering variants (eg UKF) and progressively account more and more for nonlinearities.