基于历史与磁检测信息的永磁同步平面电机定位方法（英文）

发布时间：2018-02-28 11:11

本文关键词： 多自由度定位位移测量传感器系统及应用永磁同步平面电机磁性装置　出处：《电工技术学报》2017年12期 　论文类型：期刊论文

【摘要】：通过检测永磁同步平面电机固有的空间磁场实现平面三自由度定位,能够简化运动位移传感器的结构布局,对电流相位的确定和运动控制的精度实现具有重要意义。然而,由于磁场空间分布的非线性,若直接采用常规的数学方法计算三自由度位移,会导致问题极其复杂且求解精度低。本文从信息融合的角度,运用电机运动的连续性与惯性,提出一种顺序求解算法,可实现平面三自由度位移的高精度、快速求解。该算法基于电机的历史位移和磁场检测信息,解决了原方法由于计算模型限制导致的收敛速度慢的问题。这种基于顺序求解的定位方法较原方法提高了位移分辨率和计算效率,为实现永磁同步平面电机的高精度运动控制铺平道路。
[Abstract]:By detecting the inherent space magnetic field of permanent magnet synchronous plane motor to realize plane three degree of freedom positioning, the structural layout of motion displacement sensor can be simplified, and it is of great significance to determine the current phase and realize the precision of motion control. Because of the nonlinearity of the spatial distribution of the magnetic field, if the conventional mathematical method is used to calculate the displacement of three degrees of freedom directly, the problem will be extremely complicated and the accuracy of the solution will be low. In this paper, the continuity and inertia of the motion of the motor are used in the view of information fusion. In this paper, a sequential algorithm is proposed, which can solve the displacement of three degrees of freedom accurately and quickly. The algorithm is based on the information of the historical displacement and magnetic field of the motor. The problem of slow convergence caused by the limitation of computational model is solved, and the displacement resolution and computational efficiency are improved compared with the original method. It paves the way for high precision motion control of permanent magnet synchronous plane motor.
【作者单位】：清华大学电子工程系;清华大学摩擦学国家重点实验室;清华大学精密超精密制造装备及控制北京市重点实验室;
【基金】：Supported by National Science Foundation of China(51175296,51475262,51677104)~~
【分类号】：TM341

【相似文献】