Methods and algorithms of the sustainable synthesis of adaptive control systems for the technological process of formalin production have been proposed in this article. Parameters of the regulator are estimated in the developed adaptive control system, i.e. the purpose of adaptation is reduced to the estimation of coefficients of the regulator providing the specified behavior of the system. The results obtained and the analysis of transition processes based on the modeling of the control system showed that with adaptive control, mass fractions of formaldehyde and methanol in formalin are held within 36.5÷37.5% and 0.7÷0.9% respectively, while the specific consumption of the methanol decreases by 3÷4%, which allows the process in mode close to the optimal.

This article describes the synthesis technique of static and recurrent algorithms for adaptive parametric and structurally optimized controllers for systems with a reference model. As models, systems are used that are described in the form of a state space, transfer functions, and vector difference equations. And also considered the task of developing adaptive-interval algorithms for the synthesis of control systems for technological objects.

The article presents simple algorithms for adaptive control of an object with unknown parameters, based on the use of an adaptive observer as a control device. The observer does not identify the object, but immediately adjusts it so that the outputs of the object correspond to the reference model.