A Comparative Study of PWM Techniques for Multiphase Induction Motor Drives

2018 ◽  
Vol 19 (5) ◽  
Author(s):  
Mo. Suhel A. Shaikh ◽  
Rakesh Maurya
Keyword(s):  
Induction Motor ◽  
Induction Motors ◽  
Harmonic Distortion ◽  
Motor Drives ◽  
Current Waveform ◽  
Induction Motor Drives ◽  
Distortion Factor ◽  
Stator Current ◽  
Three Phase

Abstract This paper deals with the performance analysis of different PWM techniques for three-phase and dual three-phase induction motors. In this paper, the dual three-phase induction motor is reconnected as a three-phase and six-phase winding configurations and its performances are investigated. The comparative evaluation for the aforesaid machine configurations are carried out in terms of quality of stator current waveform with different PWM techniques. Total harmonic distortion are obtained in terms of harmonic distortion factor for stator current. The theoretical findings are further verified through simulation and experimental results.

scholarly journals The Re-examination of Adjustment of the Rotor Magnetic Field Observer in the Induction Motor

2013 ◽  
Vol 4 (1) ◽  
pp. 38-44
Author(s):  
Alexander Burkov ◽  
Evgenii Krasilnikyants ◽  
Alexander Smirnov ◽  
Georgy Bouldukan
Keyword(s):  
Magnetic Flux ◽  
Induction Motor ◽  
Induction Motors ◽  
Motor Drives ◽  
Fine Tuning ◽  
Active Components ◽  
Induction Motor Drives ◽  
Flux Observer ◽  
Stator Current ◽  
Constant Magnitude

Abstract Wide use of induction motor drives makes the problems related to induction motors very topical. One of such problems is the maximal utilization of torque and velocity of induction motors. In this regard the use and accurate adjustment of rotor magnetic flux observers may be helpful. The technique of observer adjustment is subject of special interest. This technique can be regarded as optimal if it ensures constant acceleration that, in turn, corresponds to constant magnitude of active and magnetizing components of stator current. In contrast, nonoptimal tuning of the magnetic flux observer creates a transient response caused by variation of magnetic and active components of the stator current resulting in changing acceleration of the motor. However, the parameters of non-optimal process can be used for fine tuning of the observer which considers the variation of the time constants obtained analyzing the drive's magnetic circuit saturation. It is possible to conclude that implementation of fine adjustment of rotor magnetic flux observer is of critical importance for induction motor torque and velocity maximum utilization.

scholarly journals Direct Torque Control for Dual Three-Phase Induction Motor Drives

2005 ◽  
Vol 41 (6) ◽  
pp. 1627-1636 ◽  
Author(s):  
R. Bojoi ◽  
F. Farina ◽  
G. Griva ◽  
F. Profumo ◽  
A. Tenconi
Keyword(s):  
Induction Motor ◽  
Direct Torque Control ◽  
Motor Drives ◽  
Torque Control ◽  
Induction Motor Drives ◽  
Three Phase
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