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http://dx.doi.org/10.6113/TKPE.2022.27.5.402

Disturbance Observer-based Current Measurement Offset Error Compensation in Vector-controlled SPMSM Drives  

Lee, Sang-Min (Dept. of Mechatronics Engineering, Incheon Nat'l Univ)
Lee, Kibok (Dept. of Smart Mobility Engineering, Inha Univ)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.27, no.5, 2022 , pp. 402-409 More about this Journal
Abstract
In vector-controlled drive systems, the current measurement offset error causes unwanted torque ripple, resulting in speed and torque control performance degradation. The current measurement offset error is caused by various factors, including thermal drift. This study proposes a simple DC offset error compensation method for a surface permanent magnet motor based on a disturbance observer. The disturbance observer is designed in the stationary reference frame. The proposed method uses only the measured current and machine parameters without additional hardware. The effect of parameter variations is analyzed, and the performance of the current measurement offset error compensation method is validated using simulation and experimental results.
Keywords
Current measurement offset error; Disturbance observer; Vector controlled SPMSM drives;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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