Model Parameter Correction Algorithm for Predictive Current Control of SMPMSM

- Journal title : Journal of Power Electronics
- Volume 16, Issue 3, 2016, pp.1004-1011
- Publisher : The Korean Institute of Power Electronics
- DOI : 10.6113/JPE.2016.16.3.1004

Title & Authors

Model Parameter Correction Algorithm for Predictive Current Control of SMPMSM

Li, Yonggui; Wang, Shuang; Ji, Hua; Shi, Jian; Huang, Surong;

Li, Yonggui; Wang, Shuang; Ji, Hua; Shi, Jian; Huang, Surong;

Abstract

The inaccurate model parameters in the predictive current control of surface-mounted permanent magnet synchronous motor (SMPMSM) affect the current dynamic response and steady-state error. This paper presents a model parameter correction algorithm based on the relationship between the errors of model parameters and the static errors of dq-axis current. In this correction algorithm, the errors of inductance and flux are corrected in two steps. Resistance is ignored. First, the proportional relations between inductance and d-axis static current errors are utilized to correct the error of model inductance. Second, the flux is corrected by utilizing the proportional relations between flux and q-axis static current errors under the condition that inductance is corrected. An experimental study with a 100 W SMPMSM is performed to validate the proposed algorithm.

Keywords

Model parameter;Parameter correction algorithm;Predictive current control;Surface-mounted permanent magnet synchronous motor;

Language

English

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