Grid-connected solar inverter capable of not returning electricity to the single-phase grid by controlling the power point of the PV panels

Richard Duran

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

Abstract

This article presents a grid-connected high-frequency solar inverter capable of operating in countries where their electric infrastructure or electric normative framework does not allow solar photovoltaic (PV) micro-generation in urban environments. The proposed inverter is based on an isolated single-state Dual - Active - Bridge Series - Resonant (DABSR) DC/AC converter. Unlike other DABSR structures, a full-wave Cycloconvert is used in the topology to convert the high-frequency AC into the desired line-frequency AC output without the necessity of unfolding bridges. The phase shift modulation strategy is applied to control the power flow. A modified version of the conventional Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm is developed to ensure an instantaneous self-consumption with zero injection to the electricity grid. Finally, simulations are shown to verify the functionality of the inverter.

Original languageEnglish
Title of host publicationProceedings of the 2023 IEEE 30th International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350315578
DOIs
StatePublished - 2023
Event30th IEEE International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2023 - Lima, Peru
Duration: 2 Nov 20234 Nov 2023

Publication series

NameProceedings of the 2023 IEEE 30th International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2023

Conference

Conference30th IEEE International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2023
Country/TerritoryPeru
CityLima
Period2/11/234/11/23

Keywords

  • DABSR converter
  • DC/AC converter
  • micro-generation
  • MPPT
  • P&O algorithm
  • PV
  • Solar inverter

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