Title :
Position and speed sensorless control for PMSM drive using direct position error estimation
Author :
Sakamoto, Kiyoshi ; Iwaji, Yoshitaka ; Endo, Tsunehiro ; Takakura, Yuhachi
Author_Institution :
Hitachi Res. Lab., Hitachi Ltd., Japan
Abstract :
A new position and speed sensorless control approach is proposed for permanent magnet synchronous motor (PMSM) drives. The controller directly computes an error for the estimated rotor position and adjusts the speed according to this error. The derivation of the position error equation and an idea for eliminating the differential terms, are presented. The proposed approach is applied to a vector controlled PMSM AC drive and phase locked loop (PLL) control is employed for speed adjustment. Several simulations are carried out. The proposed control scheme is verified by experiments using a 3.7 kW salient pole PMSM
Keywords :
angular velocity control; errors; machine vector control; parameter estimation; permanent magnet motors; phase locked loops; position control; synchronous motor drives; 3.7 kW; PLL control; PMSM drives; direct position error estimation; permanent magnet synchronous motor drives; phase locked loop control; position error equation; position sensorless control; salient pole PMSM; speed adjustment; speed sensorless control; vector control; Differential equations; Error analysis; Error correction; Estimation error; Magnetic variables control; Permanent magnet motors; Phase locked loops; Sensorless control; State estimation; Voltage;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975540
