Abstract
In the field-oriented control of permanent magnet synchronous motor (PMSM), there are dq axis currents cross coupling effect and current harmonics which result from the inverter dead zone, motor magnetic field distribution harmonics, current sampling error, and etc. They affect severely the motor control performance. In this paper, a proportional resonance active disturbance rejection control (PR-ADRC) method for current loop control was proposed, which can effectively suppress current harmonics as well as dq axis currents decoupling. In order to eliminate the influence of motor parameter perturbation on the controller design, a stator resistance independent ADRC was derived from the motor model, and the proportional resonant term was introduced in the extended state observer. The resonant frequency can be set to the frequency of suppressed current harmonics. The suppression mechanism of current harmonics was explained through the analysis of the transfer function of the proposed PR-ADRC, and the parameter design method and stability proof of PR-ADRC were also given. Finally, the current decoupling and harmonic suppression effect of the proposed PR-ADRC were verified by experiments.
| Translated title of the contribution | Research on Current Decoupling and Harmonic Suppression Strategy of Permanent Magnet Synchronous Motor Based on Proportional Resonance Type ADRC |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 9062-9071 |
| Number of pages | 10 |
| Journal | Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering |
| Volume | 42 |
| Issue number | 24 |
| DOIs | |
| State | Published - 20 Dec 2022 |