Investigation of the performance of a DTC strategy dedicated to the control of B4 fed induction motor drives

Abstract

Purpose – This paper seeks to investigate the performance of a DTC strategy dedicated to the control of four‐switch three‐phase (B4) inverter fed induction motor drives. The major advantage of the B4 inverter is the reduced number of the involved power switches which opens up crucial cost benefits.Design/methodology/approach – The principle of operation of the B4 inverter fed induction motor drive is recalled in a first step. Then, the basis of the proposed DTC strategy is presented. Following this, the synthesis of the corresponding vector selection table is carried out considering a subdivision of the space vector plan into sixteen sectors.Findings – It has been found experimentally that the B4 inverter fed induction motor drive offers, under the proposed control strategy, interesting performance.Research limitations/implications – This work should be extended considering a comparison between the performance of B4 inverter fed induction motor drive under the proposed DTC strategy and those of the B6 inv...