A 12-Sector Space Vector Switching Scheme for Performance Improvement of Matrix-Converter-Based DTC of IM Drive

Autor:	Hossein Pirasteh, Saad Mekhilef, S. Hr. Aghay Kaboli, Ahmad Radan, S. Sina Sebtahmadi
Rok vydání:	2015
Předmět:	Engineering Electronic speed control Vector control Stator business.industry Degrees of freedom (statistics) law.invention Direct torque control law Control theory Torque Torque ripple Electrical and Electronic Engineering business Induction motor
Zdroj:	IEEE Transactions on Power Electronics. 30:3804-3817
ISSN:	1941-0107 0885-8993
DOI:	10.1109/tpel.2014.2347457
Popis:	This paper presents a direct torque control (DTC) switching scheme based on the direct matrix converter (DMC) us- ing a 12-side polygonal space vector for variable speed control of an induction motor (IM). The conventional DTC scheme-based matrix converter (MC) is limited by 60° sectors of both flux and voltage vectors, which introduce a high torque ripple. The proposed method utilizes twelve 30° sectors of both flux and voltage vectors to increase the degrees of freedom for selection of proper vectors and reduce the torque ripple. The proposed switching scheme for the MC-based DTC of an IM drive select the appropriate switch- ing vectors for control of torque with small variations of the stator flux within the hysteresis band. This improves the degrees of free- dom in selecting the vector algorithm and the torque ripple as well. Furthermore, during the large torque demand, the probabili- ties of transgressing reference vector limits, which are enclosed by 12-side polygonal space vector, are reduced. Extensive simulation and experimental results are presented to verify the effectiveness of the 12-sector space vector switching scheme for the DTC of an IM fed by the DMC.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a8a742d5d383a0bc1a6f54d7d1942df7 https://doi.org/10.1109/tpel.2014.2347457 Zobrazit plný text záznamu