Title :
Research on the PMSM servo system position sensor correction
Author :
Liu, Jun ; Xie, Xiajie ; Han, Haiyun ; Qin, Haihong ; Zhu, Deming ; Ao, Ran
Author_Institution :
Shanghai Dianji Univ., Shanghai, China
Abstract :
The objective of this paper is to discuss the position sensor correction methods for PMSM servo system, and both the software method and the hardware method are considered. The position sensor is a key equipment in the servo system and its effects on the vector control and the overall performance of servo system are introduced first. Then the software method and the hardware method to correct the position sensor with zero position are investigated respectively, and the performances under two methods are compared. The results show that both methods are effective to eliminate the rotor position error. Finally, a prototype with incremental encoder position sensor is developed and the results validate the analysis in this paper.
Keywords :
machine vector control; permanent magnet motors; servomechanisms; synchronous motors; PMSM servo system; hardware method; incremental encoder position sensor; permanent magnet synchronous motor; position sensor correction; rotor position error elimination; software method; vector control; Accuracy; Hardware; Machine vector control; Rotors; Servomotors; Software; Torque; incremetal encoder; servo system; zero adjustment;
Conference_Titel :
Power Electronics and Motion Control Conference (IPEMC), 2012 7th International
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-2085-7
DOI :
10.1109/IPEMC.2012.6259050
