Abstract
The article considers the possibility of using the Poincare-Steklov filter to build an interfacefor hardware in the loop (HIL) simulation of system. The Z and Y forms of the filter representationare given. HIL simulation involves splitting the initial system into parts, with one part being modelednumerically on a computer, and the second part is represented by a real physical object. Theparts of the system exchange data with each other through a hardware-software interface, whichcan be implemented in different ways and should ensure stability, as well as convergence of theresults of HIL simulation to the results of modeling the original system. The variants of constructingsoftware and hardware interfaces ITM, TLM, TFA, PCD, DIM, GCS and the Poincare-Steklovfilter are described in the relevant literature sources.The article shows how the original nonlinearsystem was divided into parts using the Poincare-Steklov filter, which, accordingly, led to the splittinginto parts of the system of equations describing the behavior of the original system. Next, itwas shown how the values of the stabilizing parameters of the Poincare-Steklov filter were calculatedand the systems of equations of the system divided into parts were corrected in accordancewith the obtained values. At the next stage, the article presents the results of numerical modelingof the initial and partitioned system in MATLAB. When modeling in parts, the parts of the systemexchanged data with each other at each step of the simulation only once with a delay of h. This method of numerical modeling of a system divided into parts is as close as possible to the processes occurringduring semi-natural modeling of systems. A comparison of the obtained simulation results ofthe initial and the system divided into parts allowed us to conclude that the Poincare-Steklov filter,with the correct choice of the values of the stabilizing parameters, allows for the stability and convergenceof the results of semi-natural modeling of both linear and nonlinear systems.
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