PROJECT TITLE :
Modeling and Analysis of Interturn Short Fault in Permanent Magnet Synchronous Motors With Multistrands Windings
This paper develops an analytical model for describing the behaviors of the interturn short fault in the permanent magnet synchronous motors (PMSMs) with multistrands windings. An analysis of the fault modes resulted from the deterioration of insulation in multistrands windings are first distributed. According to the attainable fault influences, a uniform expressions of interturn short-circuit current, phase voltages, and electromagnetic torque for modeling the different modes of interturn short faults are then derived. The proposed model allows finding out the postfault performances of those motors under transient and steady state, together with fault resistance, quadrature- and direct-axis current, or speed variations. Each finite-element analysis and experimental results demonstrate the effectiveness of the developed model for predicting the interturn short-circuit behaviors within the PMSMs with multistrands windings.
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