12 citations · 25 across the 20 of their papers we have counts for
9 papers · 1 filter
Improved Droop Control in DC Microgrids via Voltage-Locked Loop Synchronization
Ognjen Stanojev, Jovan Krajacic, Enea Bianda +2
DC microgrids are low- or medium-voltage networks designed to connect and manage DC-based sources and loads. A key challenge in operating DC microgrids is maintaining the DC voltag…
Limitations of RMS-based Stability Assessment of Converter-based Grids: A Case Study
Pol Jane-Soneira, Ognjen Stanojev, Francisco Canales Perez +3
The increasing penetration of power electronic converters in industrial grids introduces stability challenges at frequencies well above the electromechanical range of traditional p…
A Feedback Stability Theorem for Frequency-dependent Compensation of Excess and Lack of Passivity
Pol Jane-Soneira, Gösta Stomberg, Ognjen Stanojev +2
This article studies the stability of feedback interconnections of linear time-invariant systems based on frequency-dependent passivity indices. Using these frequency-dependent pas…
Dynamic Optimization of Virtual Inertia and Damping in Converter-Based Power Systems
Jovan Krajacic, Maitraya Avadhut Desai, Ognjen Stanojev +1
The transition towards a sustainable power system is enabled by the replacement of conventional synchronous generators with converter-interfaced renewable energy sources. However,…
Exploring Converter Control Duality in Microgrids: AC Grid-Forming vs DC Droop Control
Jovan Krajacic, Ognjen Stanojev, Mario Schweizer +3
Power electronic converters are fundamental building blocks of both AC and DC microgrids, enabling the integration of renewable energy sources, energy storage systems, electronic l…
Grid-Forming Characterization in DC Microgrids
Jovan Krajacic, Ognjen Stanojev, Mario Schweizer +3
DC microgrids are converter-based electrical networks that are increasingly being used in various applications, including data centers and industrial distribution systems. A centra…
EMT and RMS Modeling of Thyristor Rectifiers for Stability Analysis of Converter-Based Systems
Ognjen Stanojev, Pol Jane Soneira, Gösta Stomberg +1
Thyristor rectifiers are a well-established and cost-effective solution for controlled high-power rectification, commonly used for hydrogen electrolysis and HVDC transmission. Howe…
The role of VSG parameters in shaping small-signal SG dynamics
Ferdinand Geuss, Orcun Karaca, Mario Schweizer +1
We derive a small-signal transfer function for a system comprising a virtual synchronous generator (VSG), a synchronous generator (SG), and a load, capturing voltage and frequency…
Effect of Dispatch Decisions on Small-Signal Stability of Converter-Dominated Power Systems
Maitraya Avadhut Desai, Ognjen Stanojev, Simon Muntwiler +1
Small-signal stability of modern converter-dominated power systems has been the subject of extensive research, particularly from the perspective of device-level control design for…