Simplified adaptability conditions for the control system with identifier and reference model

Consideration is given to the adaptive control of a nonlinear object with t he mathematical model of a certain structure and controller with implicit r eference model and subsystem for real-time parametric identification. For t his class of systems, conditions that enable a substantial reduction of the requirements on the identifier are formulated. Examples show that in parti cular cases these conditions can be reduced to a simple constructive form s uitable for applications.