Modeling and Control of a Three-phase Grid-connected Inverter under Fault conditions

Alejandro Rolan, Pablo Gimenez, Sauro J. Yague, Santiago Bogarra

Research output: Book chapterConference contributionpeer-review

4 Citations (Scopus)

Abstract

The aim of this paper is to study the behavior of a three-phase inverter with an RL filter powered by a renewable energy source and connected to a grid under fault conditions. The novelty of the work lies in proposing a mathematical model which can be solved analytically. So, a comprehensive analytical solution is given, which can be used to describe the behavior of a three-phase inverter under both symmetrical and unsymmetrical faults. Firstly, a complete mathematical model of the system is given. Secondly, a control is applied for both symmetrical (three-phase faults) and unsymmetrical (one-phase and two-phase faults) conditions, making use of the positive- and negative-sequence components for the latter. Finally, a mathematical model for the whole system Is developed. The analytical approach is valid for any fault conditions, either symmetrical or unsymmetrical, which helps in the understanding of the behavior of three-phase inverters connected to a faulty grid and simplifies its study. The analytical model is validated through simulations carried out in Matlab-simulink™.

Original languageEnglish
Title of host publicationSPEEDAM 2018 - Proceedings
Subtitle of host publicationInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages479-484
Number of pages6
ISBN (Print)9781538649411
DOIs
Publication statusPublished - 23 Aug 2018
Event2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2018 - Amalfi, Italy
Duration: 20 Jun 201822 Jun 2018

Publication series

NameSPEEDAM 2018 - Proceedings: International Symposium on Power Electronics, Electrical Drives, Automation and Motion

Conference

Conference2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2018
Country/TerritoryItaly
CityAmalfi
Period20/06/1822/06/18

Keywords

  • Fault conditions
  • Three-phase inverter
  • Voltage sags

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