Title :
Stationary plane based investigation of the behavior of PM BLDC drives
Author :
Buja, Geogiana ; Bertoluzzo, M. ; Keshri, Ritesh K. ; Menis, R.
Author_Institution :
Dept. of Ind. Eng., Univ. of Padova, Padova, Italy
Abstract :
The paper investigates the behavior of permanent magnet (PM) brushless DC (BLDC) drives in the stationary plane. The vectors of the phase currents and back-emfs are first drawn under ideal square-wave current supply. Development of a constant torque from the motor is explicated with the help of the vector representation. Trajectories of the tips of the motor current and voltage vectors are then traced for various motor speeds taking into account the phase commutations. Torque developed by the motor and its ripple are determined from the vector tip trajectories. Theoretical findings are supported by simulation results obtained by using the data of a PM BLDC drive designed for the propulsion of electric vehicles.
Keywords :
DC motor drives; brushless DC motors; commutation; electric potential; electric propulsion; electric vehicles; permanent magnet motors; torque motors; PM BLDC drive; back-EMF; electric vehicle propulsion; motor current; permanent magnet brushless DC drive; phase commutation; phase current vector; square-wave current supply; stationary plane based investigation; torque ripple; vector tip trajectory; voltage vector; Brushless motors; Commutation; Permanent magnet motors; Torque; Trajectory; Transistors; Vectors; PM BLDC drive; electric vehicle propulsion; stationary plane representation; vector trajectories;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6700229
