Direct Torque Control with 5-level Cascaded H-Bridge Multilevel Inverter for Induction Machines

被引：0
|
作者：
Nordin, N. M. [1 ]
Idris, N. R. N. [1 ]
Azli, N. A. [1 ]
机构：
[1] Univ Teknol Malaysia, Fac Elect Engn, Dept Energy Convers, Utm Skudai, JohorBahru, Malaysia
来源：
IECON 2011: 37TH ANNUAL CONFERENCE ON IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2011年
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D O I：
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a Direct Torque Control (DTC) utilizing a 5-level cascaded H-bridge multilevel inverter (CHMI) for induction machines. A multilevel hysteresis controller for flux and torque, with 12-sector stator flux angle detection and a precise look-up table for optimum vector selection is proposed to enhance DTC performances. A theoretical concept of the proposed DTC system in terms of flux and torque control and estimations and optimal voltage vector selection are studied in this work. The simulation results obtained from MATLAB/Simulink software showed that the proposed system significantly improved the DTC drive in terms of dynamic performance, smaller torque and flux ripple and lower THD.
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页数：7
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