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Variable switching point predictive current control of quasi-Z-source inverters

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

Details

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherIEEE
Pages2773-2780
Number of pages8
ISBN (Electronic)9781509053667
DOIs
Publication statusPublished - 17 May 2017
Publication typeA4 Article in a conference publication
EventAPPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION -
Duration: 1 Jan 1900 → …

Publication series

Name
ISSN (Electronic)2470-6647

Conference

ConferenceAPPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION
Period1/01/00 → …

Abstract

This paper presents a variable switching point predictive current control (VSP2CC) for the quasi-Z-source inverter (qZSI). The proposed VSP2CC aims to regulate the current on the ac side as well as the inductor current and capacitor voltage of the quasi-Z-source network. Unlike the previously presented model predictive control (MPC) strategies for the qZSI, with the proposed control scheme the optimal switch position can be changed at any time instant within the sampling interval. By doing so, the shoot-through state can be applied for a shorter time than the sampling interval which in turn results in lower output and inductor currents ripples. Experimental results, based on an FPGA, are provided to verify the proposed control technique. As it is shown, in comparison with the conventional MPC, the proposed method results in lower inductor current ripples and less output current THD.

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