Adaptive state controller with suspension of the recurrent estimation process

The present publication introduces a practical solution to the synthesis problem of an adaptive structure of a linear discrete system with a state-space controller. The mechanism of adaptation and the method implemented with the aim to stop the recurrent estimation in order to prevent bursting of parameters are clearly shown. The control and adaptive algorithms are not described in detail, however their application is explained within the text. Additional pulse-relay controller (PRC) was implemented to support the control process at the time of the initial formation of the input-output data, required for the implementation of the adaptive observer. Simulation study results are shown in the case of a system represented by a 5
^-th
order mathematical model, describing an industrial steam super-heater. The suggested adaptive structure can be successfully implemented to both - modal controllers and those with linear quadratic control (LQR)