High-performance flux-switching DC motors for energy facilities

Abstract

An overview of flux–switching DC Motor, which received an impetus to development due to progress in the field of information and power electronics, is given. The relevance of the optimization procedures that would allow to determine the best ratios of the elements of the magnetic system in terms of increasing the specific torque in each dimension is shown. Based on the ratios of elements of the magnetic system obtained using a finite element analysis, fragments of the electromagnetic calculation technique of a machine are given. According to the proposed method of calculation, an electric machine with a power of 18 kW was designed. It is shown that the specific torque and its pulsations in the studied electric machine are close to those of an asynchronous machine with a squirrel–cage rotor of the same size. At the same time, it is superior to the asynchronous machine in terms of its adjustment characteristics, overload capacity, speed control range, and manufacturability. The field of application of such an electric machine is mechanisms with a large range of speed control, large overload torques and high requirements for specific indicators of torque and power. An example of such a mechanism is electric and hybrid transport.