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Analysis of stable operating condition of q-axis current feedback control system of IPMSM in flux weakening region

机译:弱磁区IPMSM q轴电流反馈控制系统稳定运行条件分析

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A torque control method for permanent magnet synchronous motor (PMSM) in flux weakening region has been proposed. However in particular case, current control response of proposed method becomes oscillatory. Therefore, stable operating condition is analyzed in this paper. It is revealed that the gain of transfer function from feedback component of voltage phase angle to actual q-axis current is increased in the high frequency region close to the resonant frequency. It is revealed that the ratio of d-axis and q-axis stator windings linkage flux should be considered for the stable operation because it affects the q-axis current control performance. The revealed stable operating condition is verified by experimental test with 1kW class IPMSM.
机译:提出了一种弱磁区域永磁同步电动机(PMSM)的转矩控制方法。然而,在特定情况下,所提出方法的电流控制响应变得振荡。因此,本文分析了稳定的工作条件。结果表明,在接近谐振频率的高频区域,从电压相角的反馈分量到实际q轴电流的传递函数的增益增加。结果表明,为了稳定运行,应考虑d轴与q轴定子绕组的磁链之比,因为它会影响q轴电流控制性能。通过1kW级IPMSM的实验测试证实了所揭示的稳定运行状态。

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