Abstract
The main component of the process of automation of any technological process is its identification (determination of the dynamic structure and parameters, usually represented as a transfer function Laplace.Currently, the effective methods of obtaining adequate mathematical models of the studied industrial control facilities are experimental methods; based on the processing of the results of both active experiment (removal of acceleration characteristics, obtaining frequency characteristics) and passive experiment with random realization of the input signals of a stochastic object on the studied channel with further processing of the experimental data associated with the solution of the Wiener-Hopf integral equation in the frequency, time domains or using operational amplifiers.All these methods make it possible to obtain the required mathematical models of complex technological processes (transfer function) in the form of an operator expression representing the ratio of power polynomials.The study of the obtained object model in the form of an operator expression cannot be used for modeling using operational amplifiers.The paper proposes we have developed a method that allows to produce an equivalent adequate function chart for the complex facility by the operator expression.Dividing all numerator and denominator additives of operator expression by the denominator component with the maximum degree of а0s n can help to ensure the replacement of all differentiators with integrating factors.The resulting expression will transform into the flow chart.We have provided an example of structured modelling of complex industrial facility.