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Electromagnetic coupling characteristics and suppression methods of orthogonal winding planar induction motor based on additional eddy current
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DOI：10.1016/j.mechatronics.2026.103574.png)
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Abstract
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In the orthogonal winding planar induction motor (OWPIM), two sets of windings wound in the orthogonal direction are arranged at different vertical heights of the stator core. When two sets of windings are energized simultaneously, the OWPIM has the characteristics of electromagnetic coupling, which will bring about the problems of strong nonlinear and difficult to accurately control such as the decrease of electromagnetic force, the aggravation of electromagnetic force fluctuation and the irregular fluctuation frequency. In order to study the electromagnetic coupling mechanism of the OWPIM to achieve accurate modeling analysis and control, this paper first draws the conclusion that the air gap magnetic density of the OWPIM satisfies the linear superposition relationship through the analysis of the synthetic magnetic field. On this basis, starting from the lateral end effect of the secondary conductive plate, the electromagnetic coupling effect and its impact caused by the additional eddy currents of the secondary conductive plate when two sets of windings are energized simultaneously were derived through electromagnetic field analysis and calculation methods, and experimentally verified. Finally, the measures to reduce the electromagnetic coupling effect of the OWPIM are provided.
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