Direct torque control with reduced switching losses for asymmetric multilevel inverter fed induction motor drives

Samir Kouro, Rafael Bernai, Hernán Miranda, José Rodríguez, Jorge Pontt

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Citations (Scopus)

Abstract

In this paper a high performance torque and flux control strategy for multilevel inverter fed induction motor drives is presented. The control method is based on Direct Torque Control operating principles. The stator voltage vector reference is computed from the stator flux error imposed by the torque controller. This voltage reference is then generated using an asymmetric cascaded H-bridge multilevel inverter. This inverter provides nearly sinusoidal voltages with very low distortion, using less switching devices. Due to the small dv/dt's, torque ripple is greatly reduced. In addition, the asymmetric multilevel inverter can generate a high and fixed switching frequency output voltages with less switching losses, since only the small power cells of the inverter operate at high switching rate. Therefore a high performance and also efficient torque and flux controller is obtained, enabling a DTC solution for multilevel inverter powered motor drives.

Original languageEnglish
Title of host publicationConference Record of the 2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting
Pages2441-2446
Number of pages6
Volume5
DOIs
Publication statusPublished - 2006
Event2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting - Tampa, FL, United States
Duration: 8 Oct 200612 Oct 2006

Other

Other2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting
Country/TerritoryUnited States
CityTampa, FL
Period8/10/0612/10/06

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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