Title :
Flux-weakening control of permanent magnet synchronous motor using leading angle
Author_Institution :
Dept. of Electr. Eng., Chendu Electromech. Coll., Chengdu, China
Abstract :
In order to expand the high speed operation range of permanent magnet synchronous motor (PMSM), a leading angle flux-weakening control method is presented in this paper. The angle offset of flux-weakening is gained by integrating the error of given index and calculation index, which is the utilization of motor´s terminal voltage to the voltage of DC bus, and then a voltage loop is established to maintain the stability of flux-weakening system. In different speed region, the optimum d-axis and q-axis current command can be calculated according to the new electrical angle of PMSM. The method is suitable for flux-weakening control of any kind of PMSM. The results of simulation and experimentation demonstrate the feasibility of this strategy.
Keywords :
machine control; permanent magnet motors; synchronous motors; DC bus voltage; PMSM; angle offset; calculation index; leading angle flux-weakening control method; motor terminal voltage; optimum d-axis current command; permanent magnet synchronous motor; q-axis current command; voltage loop; Indexes; Mathematical model; Permanent magnet motors; Stators; Synchronous motors; Torque; Voltage control;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6073576