Multi-objective optimum design of five-phase squirrel cage induction motor by differential evolution algorithm

• DOI: 10.1016/j.egyr.2022.09.098
• Publication Date: 2022-10-05T09:06:42Z
• Authors: Hansi Chen; Jinghong Zhao; Hanming Wang; Qingfei Zhang; Xiangyu Luo; Hao Xu; Yiyong Xiong
• Keywords: Leakage inductance; Torque ripple; Permeance; Squirrel-cage rotor

Compared with the traditional induction motors, five-phase squirrel cage motor (FSCIM) have advantages of lower torque ripple and single-phase power, flexible control strategy, higher power density fault-tolerant operation, which has been widely applied on electrical vehicles, rail transit, underwater vehicles so on. This paper presents an analytical design optimization method based coupling electromagnetic equivalent circuit (EEC) differential evolution algorithm (DEA). Furthermore, difference between three winding harmonic specific leakage permeance is investigated in detail. The nonlinear oeolotropic influences geometrical parameters (slots openings, main dimension ratio, yoke height, airgap length, etc.) performances basic FSCIM model are evaluated model. For more accurate results, characteristics structure, iron core saturation, rotor slot skew width, stator end winding, inductance structure considered. Meanwhile, efficiency, factor, maximum torque, fill factor material consumption calculated as comprehensive objective function. transient finite element analysis (TFEA) experimental test verify accuracy proposed optimum In addition, feasibility multi scheme provided by verified TFEA.