4 citations · 9 across the 11 of their papers we have counts for
12 papers
Certificate-based Synthesis of Coordinated Droop Control for Heterogeneous Radial Distribution Networks
Georgios Pantazis, Michelle Chong
Voltage certificates for droop-controlled radial distribution networks are often constructed from worst-case quantities. In heterogeneous radial networks, this approach can hide wh…
Data-driven Reachable Set Estimation with Tunable Adversarial and Wasserstein Distributional Guarantees
Georgios Pantazis, Michelle S. Chong
We study finite horizon reachable set estimation for unknown discrete-time dynamical systems using only sampled state trajectories. Rather than treating scenario optimization as a…
Safety monitoring under stealthy sensor injection attacks using reachable sets
Cédric Escudero, Michelle S. Chong, Paolo Massioni +1
Stealthy sensor injection attacks are serious threats for industrial plants as they can compromise the plant's integrity without being detected by traditional fault detectors. In t…
Secondary Controller Design for the Safety of Nonlinear Systems via Sum-of-Squares Programming
Yankai Lin, Michelle S. Chong, Carlos Murguia
We consider the problem of ensuring the safety of nonlinear control systems under adversarial signals. Using Lyapunov based reachability analysis, we first give sufficient conditio…
Plug-and-Play Secondary Control for Safety of LTI Systems under Attacks
Yankai Lin, Michelle S. Chong, Carlos Murguia
We consider the problem of controller design for linear time-invariant cyber-physical systems (CPSs) controlled via networks. Specifically, we adopt the set-up that a controller ha…
Resilient Set-based State Estimation for Linear Time-Invariant Systems Using Zonotopes
Muhammad Umar B. Niazi, Amr Alanwar, Michelle S. Chong +1
This paper considers the problem of set-based state estimation for linear time-invariant (LTI) systems under time-varying sensor attacks. Provided that the LTI system is stable and…
Controller confidentiality for nonlinear systems under sensor attacks
Michelle S. Chong
Controller confidentiality under sensor attacks refers to whether the internal states of the controller can be estimated when the adversary knows the model of the plant and control…
A secure state estimation algorithm for nonlinear systems under sensor attacks
Michelle S. Chong, Henrik Sandberg, Joao P. Hespanha
The state estimation of continuous-time nonlinear systems in which a subset of sensor outputs can be maliciously controlled through injecting a potentially unbounded additive signa…
Adaptive voltage regulation of an inverter-based power distribution network with a class of droop controllers
Michelle S. Chong, Henrik Sandberg
The voltage received by each customer connected to a power distribution line with local controllers (inverters) is regulated to be within a desired margin through a class of slope-…
Distributed L1-state-and-fault estimation for Multi-agent systems
Kazumune Hashimoto, Michelle Chong, Dimos V. Dimarogonas
In this paper, we propose a distributed state-and-fault estimation scheme for multi-agent systems. The proposed estimator is based on an -norm optimization problem, which i…
Linear system security -- detection and correction of adversarial attacks in the noise-free case
Zhanghan Tang, Margreta Kuijper, Michelle Chong +2
We address the problem of attack detection and attack correction for multi-output discrete-time linear time-invariant systems under sensor attack. More specifically, we focus on th…
Vulnerability of linear systems against sensor attacks--a system's security index
Michelle S. Chong, Margreta Kuijper
The `security index' of a discrete-time LTI system under sensor attacks is introduced as a quantitative measure on the security of an observable system. We derive ideas from error…