摘要详情

ID / 提交时间

38 / 2025-01-24 20:35:29

标题

A Sensorless Robust Control Method for Permanent Magnet Synchronous Motor Drive

关键字

model predictive control (MPC),robustness

主题及专题

Review group 13

状态

全文被拒

作者

JiaYing Xu / North China University of Technology

Xiaoguang Zhang / North China University of Technology

Ruifang Chen / North China University of Technology

Xiang Yu / North China University of Technology

Jose Rodriguez / Universidad San Sebastian

摘要

The conventional permanent magnet synchronous motor (PMSM) drive systems typically rely on phase current sensors for feedback control. However, sensor failures, measurement errors, and rising costs can undermine the system's reliability and economy. To address these issues, this paper proposes a PMSM drive control method that eliminates the need for current sensors. This method uses sliding mode observer (SMO) to estimate the dq-axis currents, with the error between the estimated and measured speeds serving as a switch function to generate the sliding mode, thus stabilizing the current estimation without relying on current sensors. Based on this, this paper designs real-time extraction of motor parameters instead of model parameters to improve the robustness of the system. The proposed sensorless method is low in complexity, enabling the PMSM drive system to operate reliably and stably, while achieving satisfactory dynamic performance and strong robustness. Simulation results demonstrate that the proposed method can operate stably without current sensors, validating its design and effectiveness.