Title :
on the Performance of Optimal Flux Search Controller for DTC Based Induction Motor Drives
Author :
Kaboli, S. ; Zolghadri, M.R. ; Vahdati-Khajeh, E. ; Homaifar, A.
Author_Institution :
Sch. of Electr. Eng., Sharif Univ. of Technol., Tehran
Abstract :
Application of a flux search controller in direct torque control of induction motor drives produces divergence problem and steady state flux ripple, because of the disturbance in the control loop. In this paper, an investigation about the origin of this noise has been performed. It is shown that the variation of voltage harmonics is the main reason of disturbance in the flux control loop. The minimum allowable value of flux step has been determined based on this analysis to prevent the divergence problem. Feasibility of noise cancellation has been discussed. Experimental results are presented to justify the theoretical analysis
Keywords :
harmonics suppression; induction motor drives; machine control; optimal control; torque control; DTC based induction motor drives; control loop disturbance; direct torque control; divergence problem; flux control loop; noise cancellation; optimal flux search controller; steady state flux ripple; voltage harmonics; Induction motor drives; Lighting control; Motor drives; Noise cancellation; Noise level; Optimal control; Stators; Steady-state; Torque control; Voltage;
Conference_Titel :
Electric Machines and Drives, 2005 IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-8987-5
Electronic_ISBN :
0-7803-8988-3
DOI :
10.1109/IEMDC.2005.195957
