Accurate Discrete-Time Modeling for Improved Torque Control Accuracy for Induction Machine Drives at Very Low Sampling-to-Fundamental Frequency Ratios

2019 ◽  
Author(s):  
Yang Xu ◽  
Chikara Morito ◽  
Robert D. Lorenz
Keyword(s):  
Fundamental Frequency ◽  
Discrete Time ◽  
Induction Machine ◽  
Torque Control ◽  
Time Modeling ◽  
Induction Machine Drives ◽  
Machine Drives ◽  
Frequency Ratios ◽  
Discrete Time Modeling ◽  
Control Accuracy

scholarly journals Novel DTC induction machine drive improvement using controlled rectifier for DC voltage tuning

2019 ◽  
Vol 10 (3) ◽  
pp. 1223
Author(s):  
Nour Mohamed ◽  
Tedjini Hamza ◽  
Gasbaoui Brahim
Keyword(s):  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control ◽  
Voltage Source ◽  
Voltage Vector ◽  
Torque Control Strategy ◽  
Torque Response ◽  
Induction Machine Drives ◽  
The Difference ◽  
Machine Drives

<span lang="EN-US">The application of the direct torque control strategy for induction machine drives is mainly characterized by torque and flux distortions caused by voltage vector limitation. The goal of this paper is to perform the conventional DTC induction machine drives and reduce ripples of both flux and torque response. The proposed contribution is based on the control of the DC output side of the rectifier feeding the voltage source inverter by means of PI controller in order to adapt the voltage vector used in typical DTC switching table. Mathematic models are built using MATLAB Simulink and programming environment; the simulation results show the difference between the proposed method and classical DTC.</span>

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