Sensorless Control of Permanent Magnet Bearingless Synchronous Motors Using Online Parameter Identification

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Sun, Haijun^1

School of Information and Control Engineering, Liaoning Shihua University, Fushun Liaoning

113001, China^1

关键词: Bearingless synchronous motor;    Motor parameters;    On-line parameter identification;    Position estimation;    Rotor position estimation;    Sensorless vector control system;    Space positions;    Stable suspensions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/3/032178/pdf
DOI  :  10.1088/1755-1315/252/3/032178

来源: IOP

【 摘 要 】

A novel rotor position estimation scheme using online parameter identification based on grey model is suggested in this paper, which will meet the need of sensorless control for permanent magnetism bearingless synchronous motor (PMBSM). The scheme is computationally simple and does not rely on the motor parameters. And then, the sensorless vector control system of PMBSM is set up based on this position estimation approach. The results of simulation and experiments show that the proposed method is capable of precisely estimating the rotor space position and is able to achieve stable suspension under the bigger disturbance.