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

Alias, Nor Faezah and Jidin , Auzani and Razi, Atikah and Sutikno, Tole and Ismail, Huzainirah (2013) Simple Switching Strategy for High-Torque Control Performance utilizing Neutral Point Clamped Multilevel Inverter. Simple Switching Strategy for High-Torque Control Performance utilizing Neutral Point Clamped Multilevel Inverter. pp. 400-408. ISSN 2088-8694

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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 voltagevector, inherently, according the motor operation conditions. The improvements offered were verified through simulations.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Electrical Engineering > Department of Power Electronics & Drives
Depositing User: Ms. ATIKAH RAZI
Date Deposited: 03 Mar 2014 09:32
Last Modified: 28 May 2015 04:18
URI: http://eprints.utem.edu.my/id/eprint/11629

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