Predictive Control of Two-Stage Grid-Connected Photovoltaic Energy System with Constant Switching Frequency

Alexander Dahlmann, Venkata Yaramasu, Apparao Dekka, Samir Kouro, Sanjeevikumar Padmanaban

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

1 Scopus citations

Abstract

In photovoltaic energy systems, a two-stage power conversion system composed of boost converter and three-phase voltage source inverter improves the energy conversion efficiency. A novel deadbeat current control (DBCC) for the boost converter and a modulated model predictive current control (M2PCC) for the grid-side converter are proposed to obtain constant switching frequency operation. The DBCC regulates the inductor current for the maximum power point tracking, while the M2PCC controls the stationary-frame grid currents such that the grid active and reactive powers are regulated with excellent power quality. The proposed control strategies ensure less steady-state error and fast transient response under a wide dynamic range. To verify the feasibility of the proposed controls, simulation studies are conducted on a 12-kW system at different irradiance, temperature and grid reactive powers.

Original languageEnglish (US)
Title of host publication2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages346-351
Number of pages6
ISBN (Electronic)9781728169903
DOIs
StatePublished - Sep 28 2020
Event11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 - Dubrovnik, Croatia
Duration: Sep 28 2020Oct 1 2020

Publication series

Name2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

Conference

Conference11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Country/TerritoryCroatia
CityDubrovnik
Period9/28/2010/1/20

Keywords

  • Boost converter
  • deadbeat control
  • modulated model predictive control
  • photovoltaic energy

ASJC Scopus subject areas

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

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