Sensitivity Analysis of Rotor Strength of Megawatt High Speed Permanent Magnet Motor
Wang Tianyu1, Wang Zerun2, Bai Bin1, Zhang Yue3, Zhang Fengge2
1. Institute of Mechanics Shenyang Institute of Engineering Shenyang 110136 China;
2. Institute of Electrical Engineering Shenyang University of Technology Shenyang 110870 China;
3. Institute of Electrical Engineering Shandong University Jinan 250061 China
To solve the problem of structural strength of the overlaid rotor of the megawatt high speed permanent magnet motor, taking a 1.12MW high speed permanent magnet motor with 18 000r/min as an example, a three-dimensional finite element model of the rotor structure was established to calculate the stress of the permanent magnet and its sheath under extreme working conditions. The input variables were sheath material, magnetic insulation material, sheath thickness, interference between sheath and permanent magnet, and the calculated results of rotor stress were used as output variables to establish orthogonal test data. The sensitivity of rotor strength was analyzed by variance analysis method. At the same time, by comparing the stress effects of input variables at different levels, the selection principles of rotor structure parameters and materials are summarized.
王天煜, 汪泽润, 白斌, 张岳, 张凤阁. MW级高速永磁电机转子强度敏感性分析[J]. 电工技术学报, 2021, 36(zk1): 107-114.
Wang Tianyu, Wang Zerun, Bai Bin, Zhang Yue, Zhang Fengge. Sensitivity Analysis of Rotor Strength of Megawatt High Speed Permanent Magnet Motor. Transactions of China Electrotechnical Society, 2021, 36(zk1): 107-114.
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2021, Vol. 36 
