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Analytical approach of current deformation based on the influence of motor space harmonics in a closed-loop of Field Oriented Control

机译:磁场定向控制闭环中基于电动机空间谐波影响的电流变形分析方法

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The reason for the stator current deformation of a Permanent Magnet Synchronous Motor (PMSM) can be categorized into 3 groups: the time harmonics from the voltage power supply, the space harmonics from the non-sinusoidal coil distribution and the nonlinearity of the stator inductance. The classic Field Oriented Control (FOC) system has control over the 1st order, assuming the three phase currents are symmetrical and sinusoidal and the existence of the current harmonic components are ignored. In this paper, the impact of motor space harmonics on the current ripple due to the closed-loop FOC control is analyzed by using system transfer function and Bode diagram.
机译:定子电流变形的原因是永磁同步电动机(PMSM)的定子,可以分为3组:从电压电源的时间谐波,来自非正弦线圈分布的空间谐波和定子电感的非线性。经典面向控制(FOC)系统的控制(FOC)系统对第1顺序进行控制,假设三相电流是对称的,并且忽略了当前谐波分量的存在。在本文中,通过使用系统传递函数和钻头图来分析电机空间谐波对电流纹波上的影响。

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