Torque Ripple Minimization in Direct Torque Control based IM Drive Part-II: Multirate Control Strategy

2008 ◽  
Author(s):  
Saurabh N. Pandya ◽  
J. K. Chatterjee
Keyword(s):  
Control Strategy ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Torque Control ◽  
Multirate Control

scholarly journals Performance Improvement of Matrix Converter Direct Torque Control System

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3247
Author(s):  
Bowei Zou ◽  
Yougui Guo ◽  
Xi Xiao ◽  
Bowen Yang ◽  
Xiao Wang ◽  
...  
Keyword(s):  
Control Strategy ◽  
Control Method ◽  
Asynchronous Motor ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Matrix Converter ◽  
Torque Control ◽  
Theoretical Simulation ◽  
Existing Problems ◽  
The Matrix

In asynchronous motor direct torque control systems, the power supply using the matrix converter can achieve the effect of direct torque control and also has the advantages of the matrix converter. Nonetheless, direct torque control still has drawbacks in terms of pulsation. In this paper, the characteristics of direct torque control method and its existing problems are analyzed in depth. In view of the shortcomings of torque ripple, an improved scheme of torque tracking control is proposed based on conventional control methods. On the basis of theoretical simulation, DSP and FPGA algorithms are designed respectively in C language and VHDL to implement the proposed control strategy. Finally, a highly integrated experimental platform of matrix converter has been developed to verify the proposed control strategy. The simulation and experimental results verify the correctness and effectiveness of the improved scheme.

Study of Direct Torque Control System of Matrix Converter Multiple Voltage Vectors

2012 ◽  
Vol 588-589 ◽  
pp. 1615-1618
Author(s):  
Zhou Yue
Keyword(s):  
Control System ◽  
Control Strategy ◽  
Direct Torque Control ◽  
Input Voltage ◽  
Torque Ripple ◽  
Matrix Converter ◽  
Torque Control ◽  
Voltage Vector ◽  
Simulation Results ◽  
Zero Voltage

In order to reduce torque ripple. Studied direct torque control of motor that fed by matrix converter. Illustrated control strategy the multiple voltage vector of matrix converter. Full utilize big and small input voltage of matrix converter synthesis long, short and zero voltage vector based on direct torque control of motor that fed by matrix converter, through the rational use of long, short and zero voltage vector to reduce torque ripple. The simulation results demonstrated that the validity of theoretical analysis and modulation strategy presented.

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