Induction Motor Sensorless and Closed Loop Torque Control in Frequency Converters

2018 ◽  
Author(s):  
Vedrana Jerkovic Stil ◽  
Kresimir Miklosevic ◽  
Zeljko Spoljaric ◽  
Goran Kurtovic
Keyword(s):  
Induction Motor ◽  
Closed Loop ◽  
Torque Control ◽  
Frequency Converters

scholarly journals Study of Direct Torque Control Scheme for Induction Motor Based on Torque Angle Closed-Loop Control

2015 ◽  
Vol 9 (1) ◽  
pp. 600-609
Author(s):  
Xuande Ji ◽  
Daqing He ◽  
Yunwang Ge
Keyword(s):  
Induction Motor ◽  
Closed Loop ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Torque Control ◽  
Closed Loop Control ◽  
Current Waveform ◽  
Loop Control ◽  
Waveform Distortion ◽  
Torque Angle

For disadvantages of the large flux and torque ripple and current waveform distortion of Direct Torque Control (BASIC-DTC), the DTC scheme for induction motor based on torque angle closed-loop control was presented and the proposed scheme was realized with three methods of torque angle closed-loop control. The main characteristics of three methods of torque angle closed-loop control for the proposed scheme was analyzed, emphasizing their advantages and disadvantages. The performance of three methods of torque angle closed-loop control for the proposed scheme was studied in terms of flux and torque ripple, current waveform distortion and transient responses. Simulation results showed that the proposed scheme improves the performance of induction motor BASIC-DTC by combining low flux ripple, low torque ripple and low current waveform distortion’s characteristics with fast dynamics.

scholarly journals The complex controller for three-phase induction motor direct torque control

2009 ◽  
Vol 20 (2) ◽  
pp. 256-262 ◽  
Author(s):  
Alfeu J. Sguarezi Filho ◽  
E. Ruppert Filho
Keyword(s):  
Induction Motor ◽  
Closed Loop ◽  
Direct Torque Control ◽  
Torque Control ◽  
Closed Loop System ◽  
Low Speed ◽  
Tuning Method ◽  
Three Phase ◽  
Model Complex ◽  
System Frequency

This paper proposes a design and tuning method for a complex gain controller, based on the three-phase induction motor mathematical model complex transfer function to be used in the direct torque control at low speed which is a problem so far. The design and tuning of the complex gain is done by using the closed loop system frequency-response function. Experimental results are presented to validate the controller and operation at low speed is also explored.

Real Time Implementation of High Performance’s Direct Torque Control of Induction Motor on FPGA

2014 ◽  
Vol 9 (5) ◽  
pp. 919 ◽  
Author(s):  
Saber Krim ◽  
Soufien Gdaim ◽  
Abdellatif Mtibaa ◽  
Mohamed Faouzi Mimouni
Keyword(s):  
Real Time ◽  
Induction Motor ◽  
Direct Torque Control ◽  
Torque Control
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