International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 3, No 4: December 2013

Simple Switching Strategy for High-Torque Control Performance utilizing Neutral Point Clamped Multilevel Inverter

Nor Faezah Alias (Universiti Teknikal Malaysia Melaka)
Auzani Jidin (Universiti Teknikal Malaysia Melaka)
Atikah Razi (Universiti Teknikal Malaysia Melaka)
Tole Sutikno (Universitas Ahmad Dahlan)
Huzainirah Ismail (Universiti Teknikal Malaysia Melaka)

Article Info

Publish Date
01 Dec 2013

Abstract

Three-level Neutral Point Clamped (NPC) inverter allows the configuration of switching devices to operate at high voltage and produce lower current/voltage harmonics. It is known that, DTC of induction machine which employs hysteresis controller has major drawbacks namely larger torque ripple and variable switching frequency. This paper aims to propose a suitable voltage vector selection to provide better torque regulation and lower switching frequency by employing DTC with 3-level NPC multilevel inverter. A simple switching strategy was formulated using 7-level torque hysteresis and 2-level flux hysteresis controllers to give more options in selecting an appropriate voltage vector, inherently, according the motor operation conditions. The improvements offered were verified through simulations.DOI: http://dx.doi.org/10.11591/ijpeds.v3i4.5248

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Journal Info
International Journal of Power Electronics and Drive Systems (IJPEDS)
Website

Abbrev

IJPEDS

Publisher

Institute of Advanced Engineering and Science

Subject

Control & Systems Engineering Electrical & Electronics Engineering

Description

International Journal of Power Electronics and Drive Systems (IJPEDS, ISSN: 2088-8694, a SCOPUS indexed Journal) is the official publication of the Institute of Advanced Engineering and Science (IAES). The scope of the journal includes all issues in the field of Power Electronics and drive systems. ...