以改进电压模型转子磁链为基础,构建了无轴承异步电机转子磁链定向无速度传感器矢量控制系统。MATLAB/Simulink仿真结果表明:与传统方法相比,所提出的改进电压模型转子磁链提高了转子磁链的观测精度；同时,基于无轴承异步电机转子磁链定向无速度传感器矢量控制系统,在空载调速和加载情况下,辨识转速和实测转速具有很好的一致性,电机能够稳定悬浮运行,充分验证了所提方案的有效性。

Based on the improved voltage model rotor flux, a speed sensorless vector control of bearingless induction motor was constructed based on rotor-flux orientation. MATLAB/Simulink simulation results show that the improved voltage model rotor flux proposed improves the observation accuracy of the rotor flux. At the same time, based on the speed sensorless vector control of bearingless induction motor oriented by rotor-flux, the identified speed and the measured speed has a good consistency under the condition of no-load speed regulation and load, and the motor can be stable suspension operation, that verifies the effectiveness of the proposed scheme.

TM 301.2

国家自然科学基金项目(51675244)；江苏省重点研发计划项目(BE2016150)；江苏高校优势学科建设工程项目