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首页> 外文期刊>IEEE Transactions on Industrial Electronics >A Rotor Position and Speed Observer for Permanent-Magnet Motors With Nonsinusoidal EMF Waveform
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A Rotor Position and Speed Observer for Permanent-Magnet Motors With Nonsinusoidal EMF Waveform

机译:具有非正弦电动势波形的永磁电动机的转子位置和速度观测器

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摘要

A new nonlinear reduced-order observer to estimate the rotor speed and position for permanent-magnet motors, with arbitrary electromotive force (EMF) waveform, is presented. The proposed observer is suitable for the realization of a torque control with minimum torque ripple. In order to implement the observer, the EMF generated by the motor is first obtained experimentally offline. After that, it is approximated by a Fourier series in order to develop the model to be used in the online estimation. Fronr'the estimated EMF, rotor position and speed are calculated using the relationship between the EMF and the rotor variables. The proposal is validated with experimental results.
机译:提出了一种新的非线性降阶观测器,用于估计具有任意电动势(EMF)波形的永磁电动机的转子速度和位置。提出的观察者适用于实现具有最小转矩波动的转矩控制。为了实现观察者,首先通过实验离线获得由电动机产生的EMF。之后,通过傅立叶级数对其进行逼近,以开发用于在线估计的模型。使用EMF和转子变量之间的关系可以计算出估计的EMF,转子位置和速度。该提案已通过实验结果验证。

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