An Extended Admittance Modeling Method with Synchronization Nodes for Stability Assessment of Converter-Interlinked Power Systems
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.
Event-Triggered Non-Linear Control Strategy for Stabilizing Offshore MMC Grids During Asymmetrical AC Faults
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.
Improved Current Limiting Control for Grid-Forming Converters during Grid Faults
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.
Enhancing Power System Stability through Power Oscillation Damping Controllers for Grid-Forming Converters in Modern Power Systems
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.
Enhancing Stability in Isolated Grids: Implementation and Analysis of the Dead-Zone Virtual Oscillator Control in Simulink and Typhoon HIL
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.
Voltage Regulation and Stability Analysis of Clustered DC Microgrids with Non-Monotone Loads
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.
Optimal Dynamic Ancillary Services Provision for Converter-Interfaced Generation Based on Local Power Grid Perception
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.
Optimal Power Flow Formulation for Resilient Power System Operation During Wildfires
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 for Enhancing Frequency and Voltage Regulation in Grid-Forming Converters
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.
Enhancing Power Grid Strength Through Grid-Forming Converters: A Small Signal Stability Perspective
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.
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