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Background: Dynamics of electrical machines is usually modelled by using electrical equivalent circuits with concentrated parameters. The most widely used package for this purpose is MatLab Simulink. A common drawback of chain models of electric machines is that they do not take into account non-traditional features of their design, which can only be taken into account by solving this problem in a field setting. At the same time, the calculation time of the field dynamic models is by several orders of magnitude longer than that of chain models. Currently, there is no modeling technology allowing the use of high-speed dynamic field models in simulation packages such as Simulink. Therefore, it is now urgent to develop dynamic models of electrical machines, in which the precision and versatility of field models is combined with the high speed of chain models. Materials and methods: Magnetic field was calculated using a finite element library EMLib, the simulation results of a series of magnetic field calculations were approximated by multidimensional splines using the MatLab package, and the chain model of the electric machine was constructed in Simulink. Results: A technology of conducting a computational experiment has been suggested, which applies preliminary field calculation results approximation to chain models for simulating dynamic modes of electromechanical devices and thus shortens the integration process by two-three orders of magnitude while maintaining the accuracy of the field models. This allows the use of field-dynamic models in simulating operation of electromechanical devices in electric drive control models. «Вестник ИГЭУ» Вып. 6 2016 г. ФГБОУВО «Ивановский государственный энергетический университет имени В.И. Ленина» 58 Conclusions: The reliability of the results obtained using the new technology is confirmed by its use in solving problems of simulating the start of DC motors including those of non-traditional design. Compared to a similar problem solved by the well-known CAE-systems, the time is reduced by three orders of magnitude. The suggested technology can be used in designing electrical machines and electrical control systems. The development of this technology is expected in the direction of high-speed dynamic field models of all types of electric machines.

Simulink technology for modeling dynamic modes of electric machine operation using a field calculations library