The proposed extended admittance modeling method with explicit characterization of synchronization (sync) loops can intuitively reveal the impact of diverse sync dynamics on the oscillatory stability of converter-interlinked power systems.
An event-triggered control strategy using linear and non-linear controllers is proposed to stabilize an offshore MMC-HVDC grid during asymmetrical AC faults by suppressing negative sequence currents.
A power matching-based current limitation scheme is proposed to ensure grid-forming converter synchronization while preventing overcurrents during grid faults. A dynamic virtual damping algorithm is also introduced to enhance fault isolation and maintain the grid-forming properties of the converter even under weak grid conditions.
This paper investigates the performance of grid-forming power converters and proposes supplementary power oscillation damping controllers to effectively damp electromechanical oscillations in modern power systems with increased penetration of converter-interfaced generation.
This paper explores the analysis and implementation of the Dead-Zone Virtual Oscillator Control (DZVOC) strategy for grid-forming inverters to enhance stability in isolated microgrids with increasing renewable energy penetration.
The paper proposes controllers for buses in a DC microgrid that guarantee voltage regulation and output strictly equilibrium-independent passivity (OS-EIP) of the controlled buses, even with uncertain, non-monotone loads. The asymptotic stability of the overall microgrid is ensured by interconnecting the OS-EIP clusters.
The core message of this article is to propose a systematic closed-loop approach to provide optimal dynamic ancillary services, such as fast frequency and voltage regulation, with converter-interfaced generation systems based on local power grid perception.
A novel cut-set and stability-constrained optimal power flow (CSCOPF) formulation that ensures secure, stable, and economic power system operation during active wildfires by integrating advanced contingency analysis techniques.
Dynamic complex-frequency control enhances the richness and flexibility of grid-forming converters to provide crucial dynamic frequency and voltage regulation services for future power systems.
The integration of grid-forming (GFM) converters can effectively enhance the power grid strength and improve the small signal stability of power systems integrated with grid-following (GFL) converters.