Modulated Model Predictive Current Control of a Three-Phase Photovoltaic Central Inverter

Alexander Dahlmann, Venkata Yaramasu, Samir Kouro, Matias Aguirre, Tripura Pidikiti

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

Abstract

A three-phase two-level voltage source inverter is the most widely adopted configuration for the grid-integration of large-scale photovoltaic energy systems. To obtain high energy conversion during a wide dynamic range and to comply with the stringent grid codes, faster and high-performance nonlinear controllers are required. This paper develops a novel modulated model predictive current control method to control the photovoltaic central inverter for maximum energy yield and reactive power control. The developed control method estimates the future values of stationary-frame grid currents and assesses them by a duty-cycle optimized cost function. Three stationary voltage vectors corresponding to the low cost value are then synthesized by the space vector modulation stage to produce gating signals for the central inverter. The proposed control method ensures constant switching frequency, low steady-state errors and fast transient response simultaneously during rapid environmental changes. To verify the feasibility of the developed control method, simulation studies are conducted on a 1-MVA photovoltaic system, under solar irradiance, temperature and reactive power changes.

Original languageEnglish (US)
Title of host publication2020 IEEE International Power and Renewable Energy Conference, IPRECON 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728161860
DOIs
StatePublished - Oct 30 2020
Event2020 IEEE International Power and Renewable Energy Conference, IPRECON 2020 - Karunagappally, India
Duration: Oct 30 2020Nov 1 2020

Publication series

Name2020 IEEE International Power and Renewable Energy Conference, IPRECON 2020

Conference

Conference2020 IEEE International Power and Renewable Energy Conference, IPRECON 2020
Country/TerritoryIndia
CityKarunagappally
Period10/30/2011/1/20

Keywords

  • Central inverter
  • current control
  • modulated model predictive control
  • photovoltaic energy
  • space vector modulation
  • two-level voltage source inverter

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Modulated Model Predictive Current Control of a Three-Phase Photovoltaic Central Inverter'. Together they form a unique fingerprint.

Cite this