4 ms·
> I realized that PID loop only works well for linear systems In practice, PID is applied to nonlinear systems too. The catch is the nonlinear system need to e
by wenc 9y ago
> I realized that PID loop only works well for linear systems
In practice, PID is applied to nonlinear systems too. The catch is the nonlinear system need to either be:
1) locally linear within the region of interest (very often the case)
2) mildly nonlinear
3) linearizable (by doing a mathematical transformation)
- airbreather 9y agoI have found that fuzzy logic control has proven to be useful for non-linear and multi-order systems in the past. The first time I build a fuzzy logic controller for an industrial plant optimisation I was very surprised at performance vs complexity and how imprecise the characterisations can be and still get very good results.