Analysis of linear Phase-Locked Loops in Grid connected Power Converters

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Abstract

Fast and accurate synchronization capability of grid-connected converters is becoming more and more important to ensure proper performance during transient events, such as grid faults. The higher requirements during the operation, as Fault-Ride-Through with reactive current injection, cause higher requirements on the operation during severe system conditions. This paper analyzes an addition to Synchronous-Reference-Frame Phase-Locked Loops for power electronic converters, that is linearizing the input signal. This enhances the tracking capabilities during abnormal transient events in the power grid. The improved control is analyzed and its increased performance is validated through simulations and experimental results.
Original languageEnglish
Title of host publicationProceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)
Number of pages10
Place of PublicationItaly
PublisherIEEE Press
Publication dateSep 2019
Pages1-10
Article number8915504
ISBN (Print)978-1-7281-2361-5
ISBN (Electronic)978-9-0758-1531-3
DOIs
Publication statusPublished - Sep 2019
Event2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) - Genova, Italy
Duration: 3 Sep 20195 Sep 2019

Conference

Conference2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)
CountryItaly
CityGenova
Period03/09/201905/09/2019

Keywords

  • Converter Control
  • Non-linear control
  • Fault Ride-Through
  • Vector control
  • Alternative energy

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    Steinkohl, J., Wang, X., Davari, P., & Blaabjerg, F. (2019). Analysis of linear Phase-Locked Loops in Grid connected Power Converters. In Proceedings of 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe) (pp. 1-10). [8915504] IEEE Press. https://doi.org/10.23919/EPE.2019.8915504