Robust Control and Optimization Method for Single-Phase Grid-Connected Inverters Based on All-Pass-Filter Phase-Locked Loop in Weak Grid

Robust Control and Optimization Method for Single-Phase Grid-Connected Inverters Based on All-Pass-Filter Phase-Locked Loop in Weak Grid

In a distributed generation system, the all-pass-filter phase-locked loop (APF-PLL) is a commonly used method for grid synchronization. However, the coupling effect between APF-PLL and current control loop increases the risk of oscillation instability for the inverter in the weak grid. At present, t...

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Bibliographic Details
Main Authors: Longyue Yang, Tian Cao, Huapeng Chen, Xinwei Dong, Shuyuan Zhang
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Energies
Subjects:
grid-connected inverter (GCI)
phase-locked loop (PLL)
complex coefficient filter (CCF)
weak grid
robustness
Online Access:https://www.mdpi.com/1996-1073/15/19/7355

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