Design of Tubular Permanent Magnet Synchronous Linear Motor by Reliability-Based Robust Design Optimization
Zhang Chunlei1,2, Zhang Hui1,2, Ye Peiqing1,2
1. Department of Mechanical Engineering Tsinghua University Beijing 100084 China; 2. Beijing Key Laboratory of Precision/Ultra-Precision Manufacturing Equipments and Control Tsinghua University Beijing 100084 China
Abstract：With the advantages of low cost and high robustness, linear hall sensors are utilized to detect the mover position of the tubular permanent magnet synchronous linear motor (TPMSLM). However, the position detection accuracy of linear hall sensor is affected by magnetic field harmonics. To reduce the harmonics, the TPMSLM was designed by reliability-based robust design optimization (RBRDO) considering the manufacturing tolerance. Firstly, a model of the position identification and thrust force analysis was established. The relationship between design variables and design objectives was analyzed. Then, the response surface model of design objectives was established by the neural network. The probability constraints were obtained by Pareto optimal front under different thrust coefficients. Finally, the total harmonic distortion is greatly reduced by RBRDO, while the thrust coefficient and the peak flux density are slightly reduced. And the position detection accuracy is improved from 357μm to 109μm.
张春雷, 张辉, 叶佩青. 高霍尔位置检测精度的圆筒型永磁同步直线电机设计[J]. 电工技术学报, 2022, 37(10): 2481-2490.
Zhang Chunlei, Zhang Hui, Ye Peiqing. Design of Tubular Permanent Magnet Synchronous Linear Motor by Reliability-Based Robust Design Optimization. Transactions of China Electrotechnical Society, 2022, 37(10): 2481-2490.
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2022, Vol. 37 
