36 citations · 107 across the 25 of their papers we have counts for
25 papers
Comparison of Current-Limiting Strategies for Grid-Forming Converters Under Grid Faults
Maitraya Avadhut Desai, Ramona Stoll, Xiuqiang He +2
This paper investigates the performance of three state-of-the-art current-limiting strategies for grid-forming (GFM) converters under grid faults. These highly effective strategies…
Adaptive Control of Unknown Linear Switched Systems via Policy Gradient Methods
Felix Laurent, Feiran Zhao, Jaap Eising +1
We consider the policy gradient adaptive control (PGAC) framework, which adaptively updates a control policy in real time, by performing data-based gradient descent steps on the li…
From Inference to Control: Structure-Guided Control of Hypergraph Dynamics
Robin Delabays, Yuanzhao Zhang, Can Chen +2
Controllability determines whether a system's state can be guided toward any desired configuration, making it a fundamental prerequisite for designing effective control strategies.…
Gaussian behaviors: representations and data-driven control
András Sasfi, Ivan Markovsky, Alberto Padoan +1
We propose a modeling framework for stochastic systems, termed Gaussian behaviors, that describes finite-length trajectories of a system as a Gaussian process. The proposed model n…
System Level Synthesis for Affine Control Policies: Model Based and Data-Driven Settings
Lukas Schüepp, Giulia De Pasquale, Florian Dörfler +1
There is an increasing need for effective control of systems with complex dynamics, particularly through data-driven approaches. System Level Synthesis (SLS) has emerged as a power…
Safety Filter for Limiting the Current of Grid-Forming Matrix Modular Multilevel Converters
Michael Schneeberger, Silvia Mastellone, Florian Dörfler
Grid-forming (GFM) converters face significant challenges in limiting current during transient grid events while preserving their grid-forming behavior. This paper offers an elegan…
Robust Feedback Optimization with Model Uncertainty: A Regularization Approach
Winnie Chan, Zhiyu He, Keith Moffat +3
Feedback optimization optimizes the steady state of a dynamical system by implementing optimization iterations in closed loop with the plant. It relies on online measurements and l…
Learn to Bid as a Price-Maker Wind Power Producer
Shobhit Singhal, Marta Fochesato, Liviu Aolaritei +1
Wind power producers (WPPs) participating in short-term power markets face significant imbalance costs due to their non-dispatchable and variable production. While some WPPs have a…
Optimizing Social Network Interventions via Hypergradient-Based Recommender System Design
Marino Kühne, Panagiotis D. Grontas, Giulia De Pasquale +3
Although social networks have expanded the range of ideas and information accessible to users, they are also criticized for amplifying the polarization of user opinions. Given the…
A Stability Condition for Online Feedback Optimization without Timescale Separation
Mattia Bianchi, Florian Dörfler
Online Feedback Optimization (OFO) is a control approach to drive a dynamical plant to an optimal steady state. By interconnecting optimization algorithms with real-time plant meas…
Grid-Forming Control of Modular Dynamic Virtual Power Plants
Xiuqiang He, Josué Duarte, Verena Häberle +1
This article explores a flexible and coordinated control design for an aggregation of heterogeneous distributed energy resources (DERs) in a dynamic virtual power plant (DVPP). The…
Carbon-Aware Computing for Data Centers with Probabilistic Performance Guarantees
Sophie Hall, Francesco Micheli, Giuseppe Belgioioso +2
Data centers are significant contributors to carbon emissions and can strain power systems due to their high electricity consumption. To mitigate this impact and to participate in…
Network-aware Recommender System via Online Feedback Optimization
Sanjay Chandrasekaran, Giulia De Pasquale, Giuseppe Belgioioso +1
Personalized content on social platforms can exacerbate negative phenomena such as polarization, partly due to the feedback interactions between recommendations and the users. In t…
Decentralized Feedback Optimization via Sensitivity Decoupling: Stability and Sub-optimality
Wenbin Wang, Zhiyu He, Giuseppe Belgioioso +2
Online feedback optimization is a controller design paradigm for optimizing the steady-state behavior of a dynamical system. It employs an optimization algorithm as a dynamic feedb…
MIMO Grid Impedance Identification of Three-Phase Power Systems: Parametric vs. Nonparametric Approaches
Verena Häberle, Linbin Huang, Xiuqiang He +3
A fast and accurate grid impedance measurement of three-phase power systems is crucial for online assessment of power system stability and adaptive control of grid-connected conver…
Trust Region Policy Optimization with Optimal Transport Discrepancies: Duality and Algorithm for Continuous Actions
Antonio Terpin, Nicolas Lanzetti, Batuhan Yardim +2
Policy Optimization (PO) algorithms have been proven particularly suited to handle the high-dimensionality of real-world continuous control tasks. In this context, Trust Region Pol…
Robust online joint state/input/parameter estimation of linear systems
Jean-Sébastien Brouillon, Keith Moffat, Florian Dörfler +1
This paper presents a method for jointly estimating the state, input, and parameters of linear systems in an online fashion. The method is specially designed for measurements that…
Hybrid Angle Control and Almost Global Stability of Non-synchronous Hybrid AC/DC Power Grids
Ali Tayyebi, Florian Dörfler
This paper explores the stability of nonsynchronous hybrid ac/dc power grids under the grid-forming hybrid angle control strategy. We formulate dynamical models for the ac grids an…
On the Certainty-Equivalence Approach to Direct Data-Driven LQR Design
Florian Dörfler, Pietro Tesi, Claudio De Persis
The linear quadratic regulator (LQR) problem is a cornerstone of automatic control, and it has been widely studied in the data-driven setting. The various data-driven approaches ca…
Structural Balance and Interpersonal Appraisals Dynamics: Beyond All-to-All and Two-Faction Networks
Wenjun Mei, Ge Chen, Noah E. Friedkin +1
Structural balance theory describes stable configurations of topologies of signed interpersonal appraisal networks. Existing models explaining the convergence of appraisal networks…
Frequency Stability of Synchronous Machines and Grid-Forming Power Converters
Ali Tayyebi, Dominic Groß, Adolfo Anta +2
An inevitable consequence of the global power system transition towards nearly 100% renewable-based generation is the loss of conventional bulk generation by synchronous machines,…
Stability of Dynamic Feedback Optimization with Applications to Power Systems
Sandeep Menta, Adrian Hauswirth, Saverio Bolognani +2
We consider the problem of optimizing the steady state of a dynamical system in closed loop. Conventionally, the design of feedback optimization control laws assumes that the syste…
The Kuramoto model on oriented and signed graphs
Robin Delabays, Philippe Jacquod, Florian Dörfler
Many real-world systems of coupled agents exhibit directed interactions, meaning that the influence of an agent on another is not reciprocal. Furthermore, interactions usually do n…
The effect of transmission-line dynamics on grid-forming dispatchable virtual oscillator control
Dominic Groß, Marcello Colombino, Jean-Sébastien Brouillon +1
In this work, we analyze the effect of transmission line dynamics on grid-forming control for inverter-based AC power systems. In particular, we investigate a dispatchable virtual…