Small-Signal Modelling and Stability Assessment of Phase-Locked Loops in Weak Grids

This paper proposes a low-complexity small signal model for a 3-leg converter connected to a balanced three-phase, three-wire weak grid and synchronised to this grid using a PLL implemented in a synchronous rotating d-q axis. A thorough analysis of the system stability as a function of the PLL bandw...

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Bibliographic Details
Main Authors: Claudio Burgos-Mellado, Alessandro Costabeber, Mark Sumner, Roberto Cárdenas-Dobson, Doris Sáez
Format: Article
Language:English
Published: MDPI AG 2019-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/7/1227