Title :
MTPA control of PMSM system considering saturation and cross-coupling
Author :
Zheng Li ; Hongmei Li
Author_Institution :
Dept. of Electr. Eng., Hefei Univ. of Technol., Hefei, China
Abstract :
Based on Finite Element Analysis (FEA) of Permanent Magnet Synchronous Motor (PMSM), after taking into account of magnetic saturation and cross-coupling effect, the relationship between flux linkage and stator current becomes nonlinear. Making use of two-dimensional surface to fit the flux linkage and stator current, then solving partial derivative to the fitted flux linkage with respect to stator current, time variable self and mutual inductances of PMSM are obtained, and then, the mathematical model of PMSM is established considering magnetic saturation, cross-coupling and cogging torque. Based on the suggested PMSM model, the maximum torque per ampere (MTPA) control is researched and implemented for vector controlled PMSM system, and the comparison with traditional vector controlled PMSM system is studied. At last, system simulation is carried out to validate the effectiveness of suggested MTPA control.
Keywords :
finite element analysis; machine vector control; magnetic flux; permanent magnet motors; stators; synchronous motors; torque control; MTPA control; PMSM; cogging torque; cross-coupling; finite element analysis; flux linkage; machine vector control; magnetic saturation; mathematical model; maximum torque per ampere; mutual inductances; permanent magnet synchronous motor; self inductances; stator current; Control systems; Couplings; Inductance; Magnetic flux; Saturation magnetization; Stators; Torque; Cross-coupling; MTPA control; Magnetic saturation; Vector controlled PMSM system;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Print_ISBN :
978-1-4673-2327-7
