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Variable switching point predictive torque control with extended prediction horizon

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

Details

Original languageEnglish
Title of host publication2015 IEEE International Conference on Industrial Technology, ICIT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2352-2357
Number of pages6
EditionJune
DOIs
Publication statusPublished - 18 Mar 2015
Publication typeA4 Article in a conference publication
Event2015 IEEE International Conference on Industrial Technology, ICIT 2015 - Seville, Spain
Duration: 17 Mar 201519 Mar 2015

Conference

Conference2015 IEEE International Conference on Industrial Technology, ICIT 2015
CountrySpain
CitySeville
Period17/03/1519/03/15

Abstract

This paper introduces the extension of the prediction horizon in the one-step variable switching point predictive torque control (VSP2TC). Even though in the majority of power electronics applications using model predictive control (MPC) based schemes, a prediction horizon of one suffices, the use of longer prediction horizons offers substantial performance benefits. To highlight this, the proposed algorithm is applied to a low voltage (LV) drive system, which comprises a two-level inverter and an induction machine (IM). As it is shown, by extending the prediction horizon, important drive quality indices, such as the torque ripple, and the total harmonic distortion (THD) of the stator currents are reduced. However, the computational effort required for solving the formulated optimization problem in real time can be overwhelming. The implementation of a branch-and-bound technique is introduced to front this tricky matter. Simulation results verify the performance of the presented control strategy.