5 papers
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…
Towards Optimal Passive Feedback Control of LTI Systems under LQR Performance
Armin Gießler, Pol Jané-Soneira, Sören Hohmann
We study state-feedback design for continuous-time LTI systems with a control input and an external input-output pair. Our objective is to determine feedback gains that render the…
Data-driven Linear Quadratic Integral Control: A Convex Formulation and Policy Gradient Approach
Armin Gießler, Pol Jané-Soneira, Sören Hohmann
This paper studies the data-driven synthesis of linear quadratic integral (LQI) controllers for continuous-time systems. The objective is to achieve optimal state-feedback control…
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…