The analyses and prediction of an highaccurate no linear inductance analysis formulation of six-phase ten-pole fault-tolerant permanent magnet machine

Taking a six-phase ten-pole fault tolerance permanent magnetic machine (FTPMM) as an example, its chief elements of wingding self inductance, such as: magnetizing inductance, harmonic leakage inductance, slot opening leakage inductance and slot inner leakage inductance, are got under analyzing the distribution of magnetic flux, and the large inductance is accomplished by adding the leakage of slot and harmonics. In order to improve the validity of the optimization in motor design, it is taking a six-phase ten-pole FTPMM as an example, and a new magnetic circuit model and arithmetic are brought forward, then a high accurate no linear analysis formulations of winding self inductance and its portions are got by introducing two parameters: the calculation thickness and magnetic force of slot opening. At the end, under the verification of FEM, the most error of self inductance calculated separately by the analysis method and FEM is below 1%, so, the analysis formulation offer a theory rule to motor optimization design and performance analysis.