关键词: 永磁同步电机；矢量控制；拟合插值；参数标定

Abstract: This paper presents a calibration and data processing method for permanent magnet synchronous motors (PMSM) based on engineering practice, aiming to ensure calibration data accuracy and maximize drive system performance. By leveraging the mathematical model of PMSM and vector control principles, combined with current distribution strategies for maximum torque current ratio, weak magnetic flux ratio, and maximum torque voltage ratio, a PMSM calibration method is proposed. The calibrated data undergoes fitting and interpolation processing to generate final controllable calibration parameters. The proposed method enables the derivation of torquecurrent relationships across the full speed range, and based on this, establishes flux linkage, inductance, d-axis and q-axis current relationship tables along with efficiency distribution diagrams, thereby completing motor parameter calibration. The proposed method streamlines the entire calibration process, ensures standardized procedures, and demonstrates universal applicability, enabling precise control and efficient operation of the tested motor systems.

Key words: permanent magnet synchronous motor; field-oriented control; fitting interpolation; parameter calibration