Results 241 to 250 of about 11,492 (301)

Transient Stability Enhancement with High Shares of Grid-Following Converters in a 100% Converter Grid

open access: yes2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), 2020
With increasing shares of power electronics-based generation in power grids, grid-following converters may become unstable during faults, resulting from a loss of phase-locked loop (PLL) synchronism. Even when current grid code low voltage ride through (LVRT) requirements are met, PLLs may still become unstable under high shares of grid-following ...
Xianxian Zhao, Damian Flynn
openaire   +3 more sources

Influence of PLL on Stability of Interconnected Grid-Forming and Grid-Following Converters

open access: yesIEEE Transactions on Power Electronics
—This letter analyzes the impact of a phase-locked loop (PLL) on small-signal stability in a system of interconnected grid-forming and grid-following (GFL) converters. It identifies an undiscovered instability phenomenon, i.e., the system is prone to unstable when the bandwidth of PLL used with GFL converter is low. Experiments validate the theoretical
Yang Wu   +4 more
openaire   +3 more sources

Performance assessment of grid-forming and grid-following converter-interfaced battery energy storage systems on frequency regulation in low-inertia power grids

open access: yesSustainable Energy, Grids and Networks, 2021
Power systems with large shares of converter-interfaced renewables may be characterised by low grid inertia due to the lack of frequency containment provided by synchronous generators.
Yihui Zuo, Zhao Yuan, Fabrizio Sossan
exaly   +2 more sources

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