Self-healing model predictive controlled cascaded multilevel inverter

Mitchell Easley, Matthew Baker, Ahmad Khan, Mohammad B. Shadmand, Haitham Abu-Rub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work presents a modified model predictive control (MPC) with open-circuit fault-detection and fault-tolerance capabilities for grid-connected multilevel inverters. The proposed self-healing model predictive control (SMPC) approximates the error in the inverter output voltage, and executes a diagnostic algorithm if this error exceeds a pre-defined tolerance. This diagnostic algorithm determines the switch with an open-circuit failure in a duration less than one fundamental period. After an open-circuit failure is detected, the controller will reduce the set of permissible control actions, allowing the inverter to retain healthy operation. Unlike the existing methods, the proposed SMPC combines fault-detection techniques with the direct application for corrective actions for fast fault clearness. The theoretical analysis and case studies verify the functionality of the proposed self-healing MPC scheme for a grid-tied seven-level cascaded multilevel inverter (CMI).

Original languageEnglish
Title of host publication2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages239-244
Number of pages6
ISBN (Electronic)9781728103952
DOIs
Publication statusPublished - Sep 2019
Event11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States
Duration: 29 Sep 20193 Oct 2019

Publication series

Name2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
CountryUnited States
CityBaltimore
Period29/9/193/10/19

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Keywords

  • Fault-detection
  • Fault-tolerance
  • Model predictive control
  • Open-circuit fault
  • Smart inverter

ASJC Scopus subject areas

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

Cite this

Easley, M., Baker, M., Khan, A., Shadmand, M. B., & Abu-Rub, H. (2019). Self-healing model predictive controlled cascaded multilevel inverter. In 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 (pp. 239-244). [8913011] (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2019.8913011