Deadbeat Predictive Current Control of PMSM Based on High-Order ESO

Résumé fourni par la source

The deadbeat predictive current control (DPCC) of permanent magnet synchronous motors has the advantages of fast dynamic response, simple control structure, etc. Nevertheless, when the traditional DPCC model is employed in the control of permanent magnet motors under conditions of high fundamental frequency and low carrier ratio, the current prediction error undergoes a marked escalation, and the cross-coupling of torque and flux intensifies appreciably. Concurrently, parameter mismatch within the traditional DPCC model will give rise to current oscillation and current static error, and in extreme instances, it will culminate in the instability of the current loop. Hence, this paper advances an enhanced deadbeat current prediction based on the high-order extended state observer (HESO). This methodology boasts superior torque-flux decross-coupling capacity, dq-axis current prediction accuracy under circumstances of high fundamental frequency and low carrier ratio, and augmented robustness in the presence of parameter mismatch.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.