Title :
Performance characteristics of brushless DC drives
Author :
Spée, René ; Wallace, Alan K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
A simulation model for the performance prediction of brushless DC drives is used to investigate the speed control obtained from modulation index and commutation advance variations for a motor of complex magnetic circuit geometry powered by a sine-coded PWM (pulsewidth modulation) inverter. The results of the study show the effects of motor model complexity on voltage and torque. Optimum performance conditions in the field-weakening mode are determined, and the value of motors using sinusoidal induced voltages is explored
Keywords :
DC motors; electric drives; machine theory; PWM inverters; brushless DC drives; commutation; field-weakening; machine theory; magnetic circuit geometry; modulation index; performance prediction; simulation model; sinusoidal induced voltages; speed control; torque; voltage; Brushless DC motors; Brushless motors; Circuit simulation; Commutation; DC motors; Predictive models; Pulse width modulation inverters; Solid modeling; Velocity control; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
