Calculation, modeling and description features of cascade systems in MATLAB

A simulation of a cascade system, during which the problem of determining the transfer function of a cascade system for analytical reception of the transient response occurred, is performed. It is proven that the equivalent object used in many modelling works and the cascade system are not the same. Transients obtained by using an equivalent object are different from real transients in a cascade control system. The analytical expression of the description of cascade system is received as a result of researches.