Fast Finite Control Set Model Predictive Control for Multilevel Inverters

Dimas Schuetz, Fernanda Carnielutti, Mokhtar Aly, Margarita Norambuena, Jose Rodriguez, Humberto Pinheiro

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

Abstract

This paper proposes a FCS-MPC strategy for multilevel inverters, called Fast FCS-MPC, that makes use of a coordinate transformation in order to represent the inverter voltage vectors with integer entries. First, it is assumed that the current reference and the actual current at k + 1 are equal, and the voltage reference needed to adequately track the desired current at k+1 is estimated. The voltage reference is then rounded to obtain the nearest inverter voltage vector. In the second step, the voltages of the internal capacitors of the multilevel inverter need to be regulated to their reference values. This is accomplished by solving another optimization problem, considering only the redundancies of the chosen voltage vector. The operation of the proposed Fast FCS-MPC is presented both for linear region and overmodulation. The proposed Fast FCS-MPC does not need weighting factors for the cost function, presents a low computational burden, achieves good steady-state and transient responses, as well as properly balances and regulates the internal capacitor voltages. In order to demonstrate the good performance of the proposed algorithm, Hardware-in-The-Loop results are presented, considering as an example a three-phase grid-Tied NPC inverter with L filter.

Original languageEnglish
Title of host publication6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages29-34
Number of pages6
ISBN (Electronic)9781665425575
DOIs
Publication statusPublished - 2021
Event6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021 - Jinan, China
Duration: 20 Nov 202122 Nov 2021

Publication series

Name6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021

Conference

Conference6th IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics, PRECEDE 2021
Country/TerritoryChina
CityJinan
Period20/11/2122/11/21

Keywords

  • Grid-Tied Inverters
  • Model Predictive Control
  • Multilevel Converters

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Control and Systems Engineering

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