Performance Improvement of Model Predictive Control for Modular Multilevel Converters by Auto-regulating the Weighting Factor Value

Mahyar Khosravi, Davood Arab Khaburi, Meysam Yousefzadeh, Jose Rodriguez

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

Abstract

The Model Predictive Control (MPC) has attracted much attention for controlling power electronic topologies, such as Modular Multilevel Converters (MMC). Despite numerous advantages of MMC, several control objectives, i.e. circulating and output currents control, and also the cell capacitors' voltage balancing should be realized. Although implementing several control objectives with a single cost function is an inherent feature of the MPC scheme, choosing appropriate weighting factor values is an important issue, besides the well-known high computational load problem. In this paper, a technique is proposed for adjusting the weighting factor value, in a way that the output current THD and also the circulating current RMS values are simultaneously minimized. This is done by designing a simple look-up table and also using sgn functions, in order to auto-update the weighting factor value during the converter operation. Finally, the performance of the proposed method is validated through conducting some simulations in the MATLAB/Simulink environment.

Original languageEnglish
Title of host publication2021 12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780738111971
DOIs
Publication statusPublished - 2 Feb 2021
Event12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021 - Tabriz, Iran, Islamic Republic of
Duration: 2 Feb 20214 Feb 2021

Publication series

Name2021 12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021

Conference

Conference12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021
Country/TerritoryIran, Islamic Republic of
CityTabriz
Period2/02/214/02/21

Keywords

  • Model Predictive Control
  • Modular Multilevel Converter
  • Weighting factor

ASJC Scopus subject areas

  • Mechanical Engineering
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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