TY - JOUR
T1 - Precise current control of PMSM based on parameter identification
AU - Xu, Dong
AU - Wang, Tianmiao
AU - Liu, Jingmeng
AU - Wei, Hongxing
PY - 2008/11
Y1 - 2008/11
N2 - In the current loop of PMSM (Permanent Magnet Synchronous Motor), the parameter change of stator resistance and inductance affects the performance of current controller. The back-EMF (ElectroMotive Force) deteriorates the current follow-up performance along with the increase of speed. A precise current control method is proposed, which corrects the controller coefficient and compensates back-EMF by parameter identification. Because the id of surface-mounted PMSM equals to zero in vector control, statistical average is used to identify motor inductance, based on which, model reference identification is designed to identify stator resistance and rotor flux according to Popov super-stable theory. The identified resistance and inductance are used to correct the parameters of PI controller while the inductance and flux to compensate back-EMF. Simulation results show that, the precise current control is achieved with proposed method, better than that of PI control or general back-EMF compensation.
AB - In the current loop of PMSM (Permanent Magnet Synchronous Motor), the parameter change of stator resistance and inductance affects the performance of current controller. The back-EMF (ElectroMotive Force) deteriorates the current follow-up performance along with the increase of speed. A precise current control method is proposed, which corrects the controller coefficient and compensates back-EMF by parameter identification. Because the id of surface-mounted PMSM equals to zero in vector control, statistical average is used to identify motor inductance, based on which, model reference identification is designed to identify stator resistance and rotor flux according to Popov super-stable theory. The identified resistance and inductance are used to correct the parameters of PI controller while the inductance and flux to compensate back-EMF. Simulation results show that, the precise current control is achieved with proposed method, better than that of PI control or general back-EMF compensation.
KW - Back-EMF compensation
KW - Coefficient correction
KW - Current loop
KW - PMSM
KW - Parameter identification
UR - https://www.scopus.com/pages/publications/56349104764
M3 - 文章
AN - SCOPUS:56349104764
SN - 1006-6047
VL - 28
SP - 30
EP - 35
JO - Dianli Zidonghua Shebei/Electric Power Automation Equipment
JF - Dianli Zidonghua Shebei/Electric Power Automation Equipment
IS - 11
ER -