Constant Frequency Torque Controller for DTC with Multilevel Inverter of Induction Machines

Direct Torque Control using multilevel inverter (DTC-MLI) with hysteresis controller suffers from high torque and flux ripple and variable switching frequency. In this paper, a constant frequency torque controller is proposed to enhance the DTC-MLI performance. The operational concepts of the consta...

Full description

Bibliographic Details
Main Authors: Norjulia, Mohamad Nordin, Naziha, Ahmad Azli, Nik Rumzi, Nik Idris, Nur Huda, Ramlan, Sutikno, Tole
Format: Article
Language:English
Published: Institute of Advanced Engineering and Science (IAES) 2016
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/13449/
http://umpir.ump.edu.my/id/eprint/13449/
http://umpir.ump.edu.my/id/eprint/13449/1/Constant%20Frequency%20Torque%20Controller%20for%20DTC%20with%20Multilevel%20Inverter%20of%20Induction%20Machines.pdf
Description
Summary:Direct Torque Control using multilevel inverter (DTC-MLI) with hysteresis controller suffers from high torque and flux ripple and variable switching frequency. In this paper, a constant frequency torque controller is proposed to enhance the DTC-MLI performance. The operational concepts of the constant switching frequency torque controller of a DTC-MLI system followed by the simulation results and analysis are presented. The proposed system significantly improves the DTC drive in terms of dynamic performance, smaller torque and flux ripple, and retains a constant switching frequency.