基于电流的无刷直流电机偏心负载耦合检测

T. Ishikawa, R. Toyota, M. Matsunami, N. Kurita, T. Matsuura
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引用次数: 2

摘要

提出了一种利用两相电流幅值对无刷直流电机偏心负载进行诊断的新方法。实验验证了两相电流幅值的傅里叶分析和小波分析是有效的。特别是,两相电流幅值的傅里叶分析与负载转矩成正比,在低速时为转矩常数的倒数系数。所提出的方法对利用定子电流估计偏心负载量是非常有用的。
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Current-based detection of eccentric load coupled to brushless DC motor
This paper proposes a new diagnosis method for the eccentric load coupled to a brushless DC motor, which utilizes the amplitude of two-phase current. The experiment verifies that the Fourier analysis and the Wavelet analysis of the amplitude of two-phase current are effective. Especially, the Fourier analysis of the amplitude of two-phase current is proportional to the load torque with the coefficient of the inverse of torque constant at a low speed. The proposed method is very useful to estimate the amount of eccentric load using the stator current.
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