Title :
Study on Rotor Position Detection Error in Sensorless BLDC Motor Drives
Author :
Qiang, Li ; Ruixia, Wang
Author_Institution :
Sch. of Autom., Nanjing Univ. of Sci. & Technol.
Abstract :
In this paper, the main reason causing rotor position detection error in sensorless BLDC motor drives that the band pass filters are employed to get the zero-crossings of back-emf is presented. The effects on commutation that result from the rotor position detection error are investigated, and the simulation results are given. The correction method is suggested, and the experimental results are provided
Keywords :
DC motor drives; brushless DC motors; commutation; rotors; back-emf; brushless DC motor; commutation; rotor position detection error; sensorless BLDC motor drive; Band pass filters; Brushless DC motors; Circuits; Commutation; DC motors; Frequency; Low pass filters; Rotors; Sensorless control; Voltage; BLDCM; Back-EMF; commutation; correction; rotor position detection error;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778322
