Modelling method for nonlinear output force of electromagnetic actuator

被引：0
|
作者：
Liu W. [1 ,2 ]
Gao Y. [1 ,2 ]
机构：
[1] Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing
[2] University of Chinese Academy of Sciences, Beijing
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 09期
关键词：
Electromagnetic actuator; Experimental modelling; Gaussian process regression; Nonlinear; Polynomial regression;
D O I：
10.15938/j.emc.2020.09.013
中图分类号：
学科分类号：
摘要：
A modelling method combining experimental test and regression analysis is proposed for nonlinear output force of electromagnetic actuator with complex magnetic field distribution. The electromagnetic force at several different spatial points in the working area of magnetic field was measured through the calibration experiment. Based on the calibration experimental data, the electromagnetic force model was established by polynomial regression method and Gaussian process regression method. Based on the polynomial regression method, the polynomial parameter model of electromagnetic force was established, and the coefficient of the polynomial model was calculated by the least square method. Based on the Gaussian process regression method, the conditional probability model of electromagnetic force was established, and the selection of covariance function and the optimization algorithm of super parameters were analyzed. Taking an electromagnetic actuator used in an active vibration isolation device for space microgravity as an example, the prediction accuracy and calculation efficiency of the polynomial model of electromagnetic force and the Gaussian process regression model of electromagnetic force were compared. The calculation time of the polynomial model of electromagnetic force in one prediction is less than 1 ns, and the prediction accuracy of electromagnetic force in the main direction is better than 12.5‰. The calculation time of the Gaussian process regression model of electromagnetic force in one prediction is about 24 ms, and the prediction accuracy of electromagnetic force in the main direction is better than 8‰. © 2020, Harbin University of Science and Technology Publication. All right reserved.
引用
收藏
页码：115 / 125
页数：10
相关论文
共 31 条
  • [1] El-SHAFEI A, DIMITRI A S, SAQR T, Et al., Test rig characterization and dynamic testing of a smart electro-magnetic actuator journal integrated bearing, Mechanisms and Machine Science, 21, (2015)
  • [2] LI Deguang, LIU Shuqin, BIAN Bin, Mechanism and restraint of beat vibration in the magnetic bearing induction motor, Electric Machines and Control, 16, 2, (2012)
  • [3] CHO D J, WOO D K, RO J S, Et al., Novel electromagnetic actuator using a permanent magnet and an inter-locking mechanism for a magnetic switch, IEEE Transactions on Magnetics, 49, 5, (2013)
  • [4] LU Jinbai, WANG Yi, XIE Jiangjian, Et al., Control method for permanent magnetic vacuum circuit breaker based on coil current, High Voltage Engineering, 39, 4, (2013)
  • [5] JACKSON M, KIM Y, WHORTON M., Design and analysis of the g-LIMIT baseline vibration isolation control system, AIAA Guidance, Navigation, and Control Conference and Exhibit, (2002)
  • [6] REN Weijia, LI Zongfeng, GAO Yang, Microgravity active vibration isolation system for space science in China, The 61st International Astronautical Congress, (2010)
  • [7] HONG D P, HWANG H Y, LEE M Y, Et al., New electromagnetic actuator for active vibration isolators, International Journal of Precision Engineering and Manufacturing, 16, 1, (2015)
  • [8] YANG Shengming, Electromagnetic actuator implementation and control for resonance vibration reduction in miniature magnetically levitated rotating machines, IEEE Transactions on Industrial Electronics, 58, 2, (2011)
  • [9] ZHANG Yuanwen, YANG Leping, ZHU Yanwei, Et al., Self-docking analysis and velocity-aimed control for spacecraft electromagnetic docking, Advances in Space Research, 57, 11, (2016)
  • [10] YUAN Yonglinag, YANG Zhen, ZHANG Xiuhua, Binding process analysis of a novel electromagnetic docking mechanism based on ADAMS, Journal of Machine Design, 33, 10, (2016)
1234