Model Predictive Control Method for Flying Capacitor Five-Level Commonly-Grounded Photovoltaic Inverter

Mokhtar Aly, Fernanda Carnielutti, Margarita Norambuena, Venkata Yaramasu, Samir Kouro, Jose Rodriguez

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

Abstract

Multilevel grid-tied inverters have been widely introduced for integrating photovoltaic (PV) inverters for several output power ranges. Among the existing multilevel inverters (MIs), the flying capacitor (FC) based topologies are preferred. However, PV systems are subjected to leakage currents due to the existing parasitic capacitance of PV panels and the common mode voltages in PV inverter topologies. Hence, multilevel FC based commonly grounded PV inverters can provide efficient solutions by merging the inherent MIs benefits with total elimination of leakage currents. Therefore, this paper presents model predictive control (MPC) method for commonly-grounded single phase five-level FC PV inverter. The proposed MPC method provides a multi-objective controller for capacitor voltages control in addition to high quality sinusoidal current injection into the grid. The modelling, design, and simulation results of the proposed MPC method are provided in this paper.

Original languageEnglish (US)
Title of host publicationProceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1003-1008
Number of pages6
ISBN (Electronic)9781728163444
DOIs
StatePublished - May 24 2021
Externally publishedYes
Event12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 - Virtual, Singapore, Singapore
Duration: May 24 2021May 27 2021

Publication series

NameProceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

Conference

Conference12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Country/TerritorySingapore
CityVirtual, Singapore
Period5/24/215/27/21

Keywords

  • commonly grounded PV inverters
  • leakage currents
  • model predictive control (MPC)
  • multilevel inverters (MIs)
  • photovoltaic (PV)

ASJC Scopus subject areas

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

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