International Journal of Control, Vol.92, No.4, 717-733, 2019
Fastest recovery after feedback disruption: nonlinear delay-differential systems
The problem of reducing operating errors after a feedback disruption is considered for a class of nonlinear delay-differential systems. It is shown that there are optimal controllers that reduce such errors in minimal time, once feedback has been restored. It is further shown that optimal performance can be approximated by bang-bang controllers - controllers that are easy to design and implement.