A Robust Position Sensor Offset Correction Method Based on Harmonic Current Injection for SPMSM
Abstract
The performance of the surface-mounted permanent magnet synchronous motor (SPMSM) drive system under the rotor field orientation (RFO) control scheme may significantly deteriorate in the presence of position sensor offset (PSO). To address this problem, first, the effects of the SPMSM drive system under PSO are investigated. Furthermore, a robust online PSO correction method based ond-axis harmonic current injection is proposed. Compared with existing schemes, the proposed scheme is independent of motor parameters so that exhibits high robustness to parametric uncertainties. Finally, the effectiveness of the proposed method is verified by experiments.
Fields of Study & Subjects
Sensorless Control of Electric Motors
Electric Motor Design and Analysis
Magnetic Bearings and Levitation Dynamics
Publication details
- Journal / source
- IEEE Transactions on Energy Conversion
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Volume
- 41
- Issue
- 3
- Pages
- 1869–1880
- Publication date
- 27 January 2026
- Language
- EN