Starting performance analysis of solid salient poles synchronous motor by Finite Element Method

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Ryosuke Tan, Design Section Large Rotating Machinery Department 1, Rotating Machinery Systems Division, TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

Abstract

For large capacity salient solid poles synchronous motor, starting torque and current are important design factor. High-precision analysis methods are required for compact design of rotating machines, but transient analysis by 3D FEM is not practical due to long calculation time. However, 2D FEM accuracy is not enough because the effects of magnetic pole and coil ends cannot be considered. We suggest high-precision analysis of 2D FEM with consideration of leakage inductance and magnetic pole resistivity for starting characteristics.

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