92 citations · 182 across the 26 of their papers we have counts for
27 papers
A control-oriented wind turbine dynamic simulation framework which resolves local atmospheric conditions
Z. Feng, Y. Liu, R. Ferrari +1
Wind turbines may experience local weather perturbation, which is not taken into account by the commonly-used wind turbine simulation packages. Without this information, it is extr…
An Economic Model Predictive Control Approach for Load Mitigation on Multiple Tower Locations of Wind Turbines
Zhixin Feng, Alexander J. Gallo, Yichao Liu +3
The current trend in the evolution of wind turbines is to increase their rotor size in order to capture more power. This leads to taller, slender and more flexible towers, which th…
A Fully Homomorphic Encryption Scheme for Real-Time Safe Control
Pieter Stobbe, Twan Keijzer, Riccardo M. G. Ferrari
Fully Homomorphic Encryption (FHE) has made it possible to perform addition and multiplication operations on encrypted data. Using FHE in control thus has the advantage that contro…
Hierarchical Cyber-Attack Detection in Large-Scale Interconnected Systems
Twan Keijzer, Alexander J. Gallo, Riccardo M. G. Ferrari
In this paper we present a hierarchical scheme to detect cyber-attacks in a hierarchical control architecture for large-scale interconnected systems (LSS). We consider the LSS as a…
Convex Model Predictive Control for Down-regulation Strategies in Wind Turbines
Jean Gonzalez Silva, Riccardo Ferrari, Jan-Willem van Wingerden
Wind turbine (WT) controllers are often geared towards maximum power extraction, while suitable operating constraints should be guaranteed such that WT components are protected fro…
Unbiased Active Inference for Classical Control
Mohamed Baioumy, Corrado Pezzato, Riccardo Ferrari +1
Active inference is a mathematical framework that originated in computational neuroscience. Recently, it has been demonstrated as a promising approach for constructing goal-driven…
Active power control of wind farms: an instantaneous approach on waked conditions
Jean Gonzalez Silva, Bart Matthijs Doekemeijer, Riccardo Ferrari +1
This paper presents a closed-loop controller for wind farms to provide active power control services using a high-fidelity computational fluid dynamics based wind plant simulator.…
Beta Residuals: Improving Fault-Tolerant Control for Sensory Faults via Bayesian Inference and Precision Learning
Mohamed Baioumy, William Hartemink, Riccardo M. G. Ferrari +1
Model-based fault-tolerant control (FTC) often consists of two distinct steps: fault detection & isolation (FDI), and fault accommodation. In this work we investigate posing fault-…
A Switching Thrust Tracking Controller for Load Constrained Wind Turbines
Jean Gonzalez Silva, Daan van der Hoek, Sebastiaan Paul Mulders +2
Wind turbines are prone to structural degradation, particularly in offshore locations. Based on the structural health condition of the tower, power de-rating strategies can be used…
Cryptographic switching functions for multiplicative watermarking in cyber-physical systems
Alexander J. Gallo, Riccardo M. G. Ferrari
In this paper we present a novel switching function for multiplicative watermarking systems. The switching function is based on the algebraic structure of elliptic curves over fini…
The Proportional Integral Notch and Coleman Blade Effective Wind Speed Estimators and Their Similarities
Yichao Liu, Atindriyo K. Pamososuryo, Sebastiaan P. Mulders +2
The estimation of the rotor effective wind speed is used in modern wind turbines to provide advanced power and load control capabilities. However, with the ever increasing rotor si…
Design of multiplicative watermarking against covert attacks
Alexander J. Gallo, Sribalaji C. Anand, André M. H. Teixeira +1
This paper addresses the design of an active cyberattack detection architecture based on multiplicative watermarking, allowing for detection of covert attacks. We propose an optima…
Towards Stochastic Fault-tolerant Control using Precision Learning and Active Inference
Mohamed Baioumy, Corrado Pezzato, Carlos Hernandez Corbato +2
This work presents a fault-tolerant control scheme for sensory faults in robotic manipulators based on active inference. In the majority of existing schemes, a binary decision of w…
Periodic Load Rejection for Floating Offshore Wind Turbines via Constrained Subspace Predictive Repetitive Control
Yichao Liu, Riccardo M. G. Ferrari, Jan-Willem van Wingerden
Individual Pitch Control (IPC) is an effective control strategy to mitigate the blade loads on large-scale wind turbines. Since IPC usually requires high pitch actuation, the safet…
Active Power Control of Waked Wind Farms: Compensation of Turbine Saturation and Thrust Force Balance
Jean Gonzalez Silva, Bart Doekemeijer, Riccardo Ferrari +1
Active power control regulates the total power generated by wind farms with the power consumed on the electricity grid. Due to wake effects, the available power is reduced and turb…
Detection of Cyber-Attacks in Collaborative Intersection Control
Twan Keijzer, Fabian Jarmolowitz, Riccardo M. G. Ferrari
Road intersections are widely recognized as a lead cause for accidents and traffic delays. In a future scenario with a significant adoption of Cooperative Autonomous Vehicles, solu…
Detection of Network and Sensor Cyber-Attacks in Platoons of Cooperative Autonomous Vehicles: a Sliding-Mode Observer Approach
Twan Keijzer, Riccardo M. G. Ferrari
Platoons of autonomous vehicles are being investigated as a way to increase road capacity and fuel efficiency. Cooperative Adaptive Cruise Control (CACC) is an approach to achieve…
A Topology-Switching Coalitional Control and Observation Scheme with Stability Guarantees
Paula Chanfreut, Twan Keijzer, Riccardo M. G. Ferrari +1
In this paper a coalitional control and observation scheme is presented in which the coalitions are changed online by enabling and disabling communication links. Transitions betwee…
Blade Effective Wind Speed Estimation: A Subspace Predictive Repetitive Estimator Approach
Yichao Liu, Atindriyo Kusumo Pamososuryo, Riccardo Ferrari +2
Modern wind turbine control algorithms typically utilize rotor effective wind speed measured from an anemometer on the turbine's nacelle. Unfortunately, the measured wind speed fro…
Fault-tolerant Control of Robot Manipulators with Sensory Faults using Unbiased Active Inference
Mohamed Baioumy, Corrado Pezzato, Riccardo Ferrari +2
This work presents a novel fault-tolerant control scheme based on active inference. Specifically, a new formulation of active inference which, unlike previous solutions, provides u…
The Immersion and Invariance Wind Speed Estimator Revisited and New Results
Yichao Liu, Atindriyo Kusumo Pamososuryo, Riccardo M. G. Ferrari +1
The Immersion and Invariance (I&I) wind speed estimator is a powerful and widely-used technique to estimate the rotor effective wind speed on horizontal axis wind turbines. Anyway,…
Fault-Tolerant Individual Pitch Control of Floating Offshore Wind Turbines via Subspace Predictive Repetitive Control
Yichao Liu, Joeri Frederik, Riccardo M. G. Ferrari +3
Individual Pitch Control (IPC) is an effective and widely-used strategy to mitigate blade loads in wind turbines. However, conventional IPC fails to cope with blade and actuator fa…
Fast Adaptive Fault Accommodation in Floating Offshore Wind Turbines via Model-Based Fault Diagnosis and Subspace Predictive Repetitive Control
Yichao Liu, Ping Wu, Riccardo M. G. Ferrari +1
As Floating Offshore Wind Turbines (FOWTs) operate in deep waters and are subjected to stressful wind and wave induced loads, they are more prone than onshore counterparts to exper…
Fault Diagnosis of the 10MW Floating Offshore Wind Turbine Benchmark: a Mixed Model and Signal-based Approach
Yichao Liu, Riccardo Ferrari, Ping Wu +3
Floating Offshore Wind Turbines (FOWTs) operate in the harsh marine environment with limited accessibility and maintainability. Not only failures are more likely to occur than in l…