Abstract
The paper presents a mathematical model of an asynchronous squirrel-cage motor with arbitrarily asymmetrical stator windings. The structure of the mathematical model equations is analysed in detail using the assumption about the symmetry of the rotor cage. A particular arrangement of the mutual inductance matrix of stator windings and rotor cage meshes is shown. As a result of applying of a special analysis method, the frequency spectrum of currents and electromagnetic torque in steady state of a squirrel-cage motor with asymmetrical stator windings is determined. Relationships are given which allow to calculate the currents and the electromagnetic torque quantitatively.—An analysis of a short-circuit of an elementary coil in one of the phases of an otherwise fully symmetrical motor is given as an application example.
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