PLL-Free Voltage Oriented Control Strategy for Voltage Source Converters Tied to Unbalanced Utility Grids

PLL-Free Voltage Oriented Control Strategy for Voltage Source Converters Tied to Unbalanced Utility Grids

Asymmetrical working conditions of the utility grid introduce the large-amplitude negative-sequence component to the output current of the voltage source converter (VSC), causing power semiconductor devices to suffer from thermal fatigue and thermal damage. Though the conventional phase-locked loop...

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Bibliographic Details
Main Authors: Liansong Xiong, Binbing Wu, Xiaokang Liu, Liancheng Xiu, Dongjie Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-02-01
Series:Frontiers in Energy Research
Subjects:
PLL-free
frequency detection
grid-connected VSC
unbalanced grid
converters
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2021.796261/full

Internet

https://www.frontiersin.org/articles/10.3389/fenrg.2021.796261/full

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