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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >Position Sensor Fault Detection of IPMSM Using Single DC-Bus Current Sensor With Accuracy Uncertainty
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Position Sensor Fault Detection of IPMSM Using Single DC-Bus Current Sensor With Accuracy Uncertainty

机译：使用单个直流公交电流传感器的IPMSM定位传感器故障检测，具有精度不确定性

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摘要

This paper proposes a position sensor fault detection scheme using single dc-bus current sensor for interior permanent magnet synchronous motor (IPMSM) drives. The three-phase currents are derived from the single current sensor, and the accuracy uncertainty of the sensor is also considered. The six active vectors are divided into three groups for sensor calibration. Then, the proposed dc-bus current sensor offset error calibration method is implemented by setting two opposite basic vectors together and measuring the current values on both sides of the junction point in a same time interval. If the sum of the two sampled currents is not zero, it indicates that the offset error of the dc-bus current sensor exists. Therefore, a corresponding compensation method is proposed. Meanwhile, the dc-bus current slopes under different switching states are closely related to the rotor position, which are utilized for position sensor error detection. Finally, the effectiveness of the proposed scheme is verified by experimental results on a 5-kW IPMSM motor prototype.
机译：本文采用了用于内部永磁同步电机（IPMSM）驱动器的单直流总线电流传感器的位置传感器故障检测方案。三相电流来自单电流传感器，也考虑了传感器的精度不确定性。六个有效载体分为三组，用于传感器校准。然后，通过将两个相对的基本向量设置在一起并在相同的时间间隔中测量结点两侧的电流值来实现所提出的直流总线电流传感器偏移误差校准方法。如果两个采样电流的总和不为零，则表示存在DC总线电流传感器的偏移误差。因此，提出了相应的补偿方法。同时，不同开关状态下的直流母线电流斜率与转子位置密切相关，转子位置用于定位传感器错误检测。最后，通过5-kW IPMSM电机原型的实验结果验证了所提出的方案的有效性。

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