A universal numerical method of modelling electromechanical converters and systems

A general approach to the construction of magnetic equivalent circuits of electrical machines is described. The approach considered is based on a tooth contour. Such equivalent circuits make it possible to simulate the magnetic fields of electrical machines with several orders of magnitude fewer elements compared with traditional methods. A universal method for the numerical modelling of electromagnetic processes in electromechanical systems is proposed. The method is based on a new type of equivalent circuit, which enables a system of equations of electrical machines with connected electric circuits of arbitrary configuration to be set up. General equations for the magnetic fields and electric circuits of an electrical machines are written using a common basis - the nodal potential method. The time needed to calculate the magnitudes of the magnetic fields and the electrical processes of an electrical machines is reduced by several orders of magnitude.