[PDF] Top 20 Direct torque control of brushless DC drives with reduced torque ripple

... magnet brushless ac (BLAC) and brushless dc (BLDC) drives [1], [2] are used extensively for many applications, ranging from servos to traction ...vector control is often employed, while ... See full document

... obtain direct flux and electromagnetic torque control, indirect voltage and current control, sinusoidal current and flux, low torque ripple, superior torque dynamics and ... See full document

... different control strategy for BLDC machines has been presented. Torque ripples have been reduced by using voltage controller with ...simple control scheme and phase currents are kept balanced ... See full document

... Direct Torque Control (DTC) strategies of Induction motor drives are mostly used in variable speed applications ...prominent control objective concerning the induction motor is to keep ... See full document

... Abstract Torque-Ripple control of brushless DC motor has been the main obstacle in drive system in which speed fluctuation, vibration and acoustics noise should be ...and ... See full document

... the direct torque control (DTC) of BLDC motor drives by using particle swarm optimization ...versus torque characteristics. Direct torque control (DTC) is one of ... See full document

... direct control of the electromagnetic torque and the stator flux through the application of suitable combinations of the control signals of the inverter ...switches. Brushless DC ... See full document

... Abstract—Bearingless brushless DC (BBLDC) motor in the flywheel energy storage system has advantages of low energy consumption, high critical speed and better speed adjustment ...However, torque ... See full document

... starting torque is limited to ...current ripple can be achieved with the proposed split clamping PWM technique and analytically it is clear that with   30 o , split clamping gives minimum distortion and ... See full document

... excessive-torque ripple and acoustic ...to reduced dc voltage sign pulse ...the torque ripple at low velocity, chopping cutting-edge law is normally ...Therefore, torque ... See full document

... controlling brushless direct current (bldc) motor drives, including the foundation investigation utilizing sensors, confinements and ...routine control and detecting methods have been enhanced ... See full document

... Measured torque waveforms are shown in ...commutation torque ripples are compared in the both controllers, PI controller and Fuzzy Logic ...Electromagnetic torque(Nm) is plotted in the Y axis. ... See full document

... inverter. DC power is supplied by rectifying the 3 phase ac supply. Control configuration shown is composed of a single-speed ...Speed control output is directly fed to the PWM module as the duty ... See full document

... commutation torque ripple in BLDCM ...the torque ripple is effectively ...conventional control is done using ...for torque ripple ... See full document

... motor drives requires two hysteresis ...and torque ripples, current harmonics and switching frequency of power electronics devices ...is reduced by small flux hysteresis band and torque ... See full document

... speed control. For speed control ac drives are used which require a power electronic converter for their supply (mostly an inverter with a dc link), therefore number of machine phases is ... See full document

... of Direct Torque Control was introduced in the mid 1980's ...simple control structure as it is sensitive to only variation of stator resistance ...the control stucture between DTC and ... See full document

... motor drives such as motion control, it is usually desirable that the motor can provide good dynamic torque response as it is obtained from dc motor ...Many control schemes have been ... See full document

... speed control is done by the variable dc link voltage of ...have reduced switching ...variable dc link voltage of VSI for improving power quality at ac ... See full document

... motors. Torque ripple generates acoustic noise and ...reduce torque ripples while using these Permanent magnet BLDC motors for home appliances ... See full document