永磁同步电机转子初始位置的静止型估计

发布时间：2018-04-15 21:07

本文选题：永磁同步电机 + 矢量控制　；参考：《电机与控制学报》2014年07期

【摘要】：针对传统永磁同步电机转子初始位置静止型辨识方法的注入频率过高和电流不可控等问题,提出了一种基于正弦电流注入的估计方法。在电流闭环控制的基础上,当给定子注入正弦电流时,永磁同步电机的凸极效应与转子磁极方向的非线性磁路饱和特性使得电流环控制器输出电压中含有转子磁极位置信息与极性信息,可分别用于转子磁极的初次辨识角度估计和极性判断。该方法消除了定子电阻与电感的影响,降低了注入正弦电流的频率要求,且可控的定子电流有效防止因电流过大而损坏变频器或因电流过小而影响估计精度。内嵌式永磁同步电机Matlab仿真和永磁同步电梯曳引机实验均验证了该方法的可行性。
[Abstract]:In view of the traditional permanent magnet synchronous motor rotor initial position static type identification method of high injection frequency and current is not controllable, proposes an estimation method based on sinusoidal current injection. Based on current closed-loop control, when the injected sinusoidal current to the stator, the nonlinear magnetic saturation characteristic of permanent magnet synchronous motor raisedeffect with the rotor magnetic pole direction for the rotor position information and contains the polarity information of the current loop controller output voltage, can be used for the initial identification of the rotor poles angle estimate and polarity. This method eliminates the influence of stator resistance and inductance, reduced into sinusoidal current frequency, stator current and controlled to prevent because the current is too large or too small for the current transducer damage and affect the estimation accuracy. He Yongci Matlab simulation of interior permanent magnet synchronous motor synchronous elevator The feasibility of the method is verified by the machine experiment.

【作者单位】：华南理工大学自动化科学与工程学院;
【基金】：中央高校基金(2013ZM0105)
【分类号】：TM341

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