Abstract
This paper presents inductance characteristics analysis of the consequent-pole permanent magnet in-wheel motor (CPM). Considering the specialty of consequent-pole structure, this paper analyzes the change rule of the winding self-inductance via equivalent magnetic circuit method (EMCM). The corresponding equivalent resistance is directly given when the rotor is in different positions. Based on this, equivalent magnetic circuit (EMC) that reflects the inductance of the CPM is summarized in this paper. In order to analyze the difference and connection of the inductance among the CPM, two models with 36 slots 32 poles and 48 slots 40 poles are established and compared. Moreover, the Fourier analysis expression of winding self-inductance is deduced to prove the different periodicities of winding self-inductance between two motors. The experimental result is consistent with the theoretical analysis, and the conclusion effectively proves the close relationship between the inductance characteristics and its internal structure of the motor.
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