Title :
Analyses and compensation of rotor position detection error in a sensorless PM brushless DC motor
Author :
Shen, J.X. ; Tseng, K.J.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
A PM brushless DC motor can be sensorlessly controlled using phase voltage or terminal voltage. However, such control might cause a detection error of the rotor position. This paper computes and analyzes the detection error and the motor commutation angle, and presents an error compensation circuit to make the motor commutate normally. Experimental results are included to verify the computation equations and the compensation circuit
Keywords :
brushless DC motors; commutation; error compensation; machine control; permanent magnet motors; rotors; compensation circuit; error compensation circuit; motor commutation angle; phase voltage; rotor position detection error; sensorless PM brushless DC motor; terminal voltage; Brushless DC motors; Circuit analysis computing; Commutation; DC motors; Error analysis; Error compensation; Error correction; Rotors; Sensorless control; Voltage control;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769034
