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Comparison of Grid-Forming Converter Control Strategies
2021 IEEE Energy Conversion Congress and Exposition (ECCE), 2021The aim of this paper is to compare three different categories of grid-forming converter control strategies based on their structural differences, and ability to fulfill the requirements that have been recently identified by the European Network of Transmission and System Operators for Electricity (ENTSOE). Among these requirements, the ones associated
Anant Narula +2 more
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Grid Forming Converter Technology and Applications
2022One of the drawbacks of the increasing use of (mostly inverter fed) renewable technologies is the reduction in transient stability of power systems with high renewable penetration. Grid forming inverters provide one solution to maintaining power system stability.
L. Unruh +4 more
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Synchronous Converter Role in a Grid Forming System
IET Conference Proceedings, 2021There is a greater acceptance of the connection of an increasing share of renewable energy sources to electrical power networks at either grid or local utilization voltage levels as the electrical power network operators contend with the competing challenges of changing and increasing load demands, and continuing pressures to reduce net carbon ...
P. Marinakis, N. Schofield
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Sequence Impedance Characteristics of Grid-Forming Converter Controls
2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2020In this paper, the sequence impedance-based small-signal modelling is exemplarily applied to the synchronverter control approach with three different inner control setups and compared against other popular grid-forming concepts, namely droop control and the virtual synchronous generator (VSG). The synchronverter variations differ in terms of whether an
Marc Dokus, Axel Mertens
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Grid Impedance Estimation Through Grid-Forming Power Converters
IEEE Transactions on Power Electronics, 2021In more-electronics power systems, grid-forming power converters, which operate as ac voltage sources, regulate the grid frequency and voltages in replacement of synchronous generators. Notably, grid impedances greatly influence the small signal and voltage stability of grid-forming converters.
Jingyang Fang, Han Deng, Stefan M. Goetz
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Stability of power networks with grid-forming converters
2019 IEEE Milan PowerTech, 2019Due to an increase in converter-interfaced renewable generation, power networks are becoming increasingly reliant on power converters, which have contrasting dynamical behaviour to rotating machines with large inertia. This results in new control challenges for the power grid.
Jeremy Watson +3 more
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Enhanced Current-Limiting Strategy of Grid-Forming Converter Considering Grid-forming Capability
Recently, Grid-forming (GFM) converters have gained significant attention for their ability to enhance power system stability during disturbances. However, conventional current-limiting strategies lack sufficient consideration for preserving GFM capability under current-limited conditions.Maeng, Junyeol, Cui, Shengui
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Current Regulation Of Grid-Forming Converters
2021 IEEE 5th Conference on Energy Internet and Energy System Integration (EI2), 2021Lulu Huang, Shanshan Sun, Wenhe Li
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Stability of grid forming converters under electromechanical restrictions
IET Conference ProceedingsIn this paper, the large signal stability of a grid-forming wind power generation system is analyzed. The conventional methodology of power curves is applied to the grid-forming inverter, incorporating the effects of virtual impedance and current limitations.
Rasmus Kristiansen +2 more
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