A dynamic angle calibration method for sensored FOC-controlled IPMSM in field weakening region

F. Ludwig, Habil Andreas Mockel
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Abstract

In this paper a new method of dynamic flux angle adjustment as a function of field weakening d-axis current by passing through a pre-application teach-in process is proposed. The aim is to reduce torque ripple, power dissipation in the electric drive system and instability of the current control loop caused by faulty rotor flux angle information. Torque-forming parts of the supposed d-current are measured at idle and iteratively forced to zero by varying the actual flux angle. Experiments showed that the proposed calibration method is able to compensate flux angle shifts and their effects on the operation behavior at field weakening.
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磁场减弱区感应式焦控永磁同步电机动态角度标定方法
本文提出了一种基于磁场减弱d轴电流动态调节磁通角的新方法,该方法通过应用前的教学过程实现。其目的是减少因转子磁链角信息错误而引起的转矩脉动、电驱动系统的功耗和电流控制回路的不稳定。假设的d电流的转矩形成部分在空闲时测量,并通过改变实际磁通角迭代地强制为零。实验表明,所提出的校准方法能够补偿磁场减弱时磁通角偏移及其对工作行为的影响。
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