Title :
Space-vector PWM based direct torque control of PM brushless machine drives having non-ideal characteristics
Author :
Leong, J.H. ; Zhu, Z.Q. ; Liu, J.M.
Author_Institution :
Univ. of Sheffield, Sheffield, UK
Abstract :
A SVPWM-based DTC scheme for PM BLAC machines having non-sinusoidal back-EMF and cogging torque is presented. It employs an improved electromagnetic torque observer, which takes into consideration the effect of non-sinusoidal back-EMF and cogging torque. The effectiveness of the improved SVPWM-based DTC scheme in minimizing both the low and high frequency pulsating torque induced stator torsional vibration is proven experimentally.
Keywords :
AC machines; brushless machines; electric drives; machine control; observers; permanent magnet machines; torque control; vibrations; PM BLAC machines; PM brushless machine drives; SVPWM-based DTC scheme; cogging torque; electromagnetic torque observer; high-frequency pulsating torque-induced stator torsional vibration minimization; low-frequency pulsating torque-induced stator torsional vibration minimization; nonideal characteristics; nonsinusoidal back-EMF; space-vector PWM-based direct torque control; Current measurement; Forging; Inverters; Modulation; Observers; Switching frequency; Torque; direct torque control; permanent magnet brushless drives; space vector pulse width modulation;
Conference_Titel :
Ecological Vehicles and Renewable Energies (EVER), 2013 8th International Conference and Exhibition on
Conference_Location :
Monte Carlo
Print_ISBN :
978-1-4673-5269-7
DOI :
10.1109/EVER.2013.6521611
