In this letter, we propose a novel position sensorless control method for switched reluctance machines (SRMs). This method is based on a residual inductance calculation and a polynomial fitting solution. Due to its ability to implement position sensorless heavy load starting control, the proposed method eliminates the need for filters and additional hardware; Not only numerical information about the inductance of each phase of the motor is used but also information about the shape of the inductance curve. The use of multiple information can improve robustness and overcome errors due to the integral term at low speed, so it enables fast motor starting without the need for a position sensor, even under heavy load conditions up to twice the rated load. Its effectiveness is validated through experimental results. Furthermore, it exhibits reasonable simplicity and robustness; thus, providing a promising solution for implementing position sensorless control in SRMs.

中文翻译：

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一种基于残余电感计算和多项式拟合的SRM无传感器重载启动控制方法


在这封信中，我们提出了一种用于开关磁阻电机（SRM）的新型无位置传感器控制方法。该方法基于残余电感计算和多项式拟合解。由于能够实现无位置传感器重载启动控制，该方法无需滤波器和额外的硬件；不仅使用有关电机每相电感的数字信息，还使用有关电感曲线形状的信息。多个信息的使用可以提高鲁棒性并克服低速时积分项带来的误差，因此即使在高达两倍额定负载的重负载条件下，也可以在不需要位置传感器的情况下实现快速电机启动。通过实验结果验证了其有效性。此外，它还表现出合理的简单性和鲁棒性；因此，为在 SRM 中实现无位置传感器控制提供了一个有前途的解决方案。