Modeling of electrical systems and control systems by modern MATLAB packages

Introduction. Packages Simulink and SimPowerSystem are used by most researchers separately due to problems with the mutual transfer of data between functional blocks. In particular, issues of simulation and construction of dynamic models of various systems are solved using the Simulink package, modeling of electrical, electrical systems and electric drive systems are solved using SimPowerSystem. Aim: to develop methods of their mutual application both in the educational process and in production for the design of nodes and research etc. Materials and methods. In practice, research in the field of electronic and electronic circuits is carried out by analytical calculations. The impossibility of direct routing of signals from Simulink and SimPowerSystem packages in MATLAB is shown. In some cases, only data packets, output signals and vice versa are used. The process of combining two circuits modeled in different packages is described in stages using the following examples: transferring values from Simulink models to MATLAB, transferring values from MATLAB to a Simulink model, transferring values from Simulink to SimPowerSystem. Results. All examples are gave in an accessible, understandable form, with diagrams, graphs, algorithm of actions, code, expected results, so that the reader can understand their principle. Possible problems when executing the examples and their possible solutions are discussed. Conclusion. The joint use of the Simulink and SimPowerSystem blocks allows you to simulate very complex dynamic systems, while increasing their functionality and visibility, especially when modeling electrical systems.