2 citations · 9 across the 21 of their papers we have counts for
16 papers · 1 filter
State-Robust Observability Measures for Sensor Selection in Nonlinear Dynamic Systems
Mohamad H. Kazma, Sebastian A. Nugroho, Aleksandar Haber +1
This paper explores the problem of selecting sensor nodes for a general class of nonlinear dynamical networks. In particular, we study the problem by utilizing altered definitions…
On Differential Privacy and Traffic State Estimation Problem for Connected Vehicles
Suyash C. Vishnoi, Ahmad F. Taha, Sebastian A. Nugroho +1
This letter focuses on the problem of traffic state estimation for highway networks with junctions in the form of on- and off-ramps while maintaining differential privacy of traffi…
Traffic State Estimation for Connected Vehicles using the Second-Order Aw-Rascle-Zhang Traffic Model
Suyash C. Vishnoi, Sebastian A. Nugroho, Ahmad F. Taha +1
This paper addresses the problem of traffic state estimation (TSE) in the presence of heterogeneous sensors which include both fixed and moving sensors. Traditional fixed sensors a…
Dynamic State Estimation of Nonlinear Differential Algebraic Equation Models of Power Networks
Muhammad Nadeem, Sebastian A. Nugroho, Ahmad F. Taha
This paper investigates the joint problems of dynamic state estimation of algebraic variables (voltage and phase angle) and generator states (rotor angle and frequency) of nonlinea…
Observers for Differential Algebraic Equation Models of Power Networks: Jointly Estimating Dynamic and Algebraic States
Sebastian Nugroho, Ahmad Taha, Nikolaos Gatsis +1
Phasor measurement units ({PMUs}) have become instrumental in modern power systems for enabling real-time, wide-area monitoring and control. Accordingly, many studies have investig…
Feedback Stabilization and Output Tracking for Discrete-Time Lipschitz Nonlinear Systems via Iterative Convex Approximations
Sebastian A. Nugroho, Suyash C. Vishnoi, Ahmad F. Taha +1
The stabilization of unstable nonlinear systems and tracking control are challenging engineering problems due to the encompassed nonlinearities in dynamic systems and their scale.…
Towards Understanding Sensor and Control Nodes Selection in Nonlinear Dynamic Systems: Lyapunov Theory Meets Branch-and-Bound
Sebastian A. Nugroho, Ahmad F. Taha
Sensor and actuator selection problems (SASP) are some of the core problems in dynamic systems design and control. These problems correspond to determining the optimal selection of…
Control Node Selection Algorithm for Nonlinear Dynamic Networks
Aleksandar Haber, Sebastian A. Nugroho, Patricio Torres +1
The coupled problems of selecting control nodes and designing control actions for nonlinear network dynamics are fundamental scientific problems with applications in many diverse f…
Nonlinear Dynamic Systems Parameterization Using Interval-Based Global Optimization: Computing Lipschitz Constants and Beyond
Sebastian A. Nugroho, Ahmad F. Taha, and Vu Hoang
Numerous state-feedback and observer designs for nonlinear dynamic systems (NDS) have been developed in the past three decades. These designs assume that NDS nonlinearities satisfy…
Asymmetric Cell Transmission Model-Based, Ramp-Connected Robust Traffic Density Estimation under Bounded Disturbances
Suyash C. Vishnoi, Sebastian A. Nugroho, Ahmad F. Taha +2
In modern transportation systems, traffic congestion is inevitable. To minimize the loss caused by congestion, various control strategies have been developed most of which rely on…
Robust Dynamic State Estimation of Synchronous Machines with Asymptotic State Estimation Error Performance Guarantees
Sebastian Nugroho, Ahmad F. Taha, Junjian Qi
A robust observer for performing power system dynamic state estimation (DSE) of a synchronous generator is proposed. The observer is developed using the concept of $\mathcal{L}_{\i…
Characterizing the Nonlinearity of Power System Generator Models
Sebastian A. Nugroho, Ahmad F. Taha, Junjian Qi
Power system dynamics are naturally nonlinear. The nonlinearity stems from power flows, generator dynamics, and electromagnetic transients. Characterizing the nonlinearity of the d…
A Control-Theoretic Approach for Scalable and Robust Traffic Density Estimation using Convex Optimization
Sebastian A. Nugroho, Ahmad F. Taha, Christian Claudel
Monitoring and control of traffic networks represent alternative, inexpensive strategies to minimize traffic congestion. As the number of traffic sensors is naturally constrained b…
Simultaneous Sensor and Actuator Selection/Placement through Output Feedback Control
Sebastian Nugroho, Ahmad F. Taha, Tyler Summers +1
In most dynamic networks, it is impractical to measure all of the system states; instead, only a subset of the states are measured through sensors. Consequently, and unlike full st…
Dynamic Actuator Selection and Robust State-Feedback Control of Networked Soft Actuators
Nafiseh Ebrahimi, Sebastian Nugroho, Ahmad F. Taha +3
The design of robots that are light, soft, powerful is a grand challenge. Since they can easily adapt to dynamic environments, soft robotic systems have the potential of changing t…
Robust Control for Renewable-Integrated Power Networks Considering Input Bound Constraints and Worst-Case Uncertainty Measure
Ahmad F. Taha, Mohammadhafez Bazrafshan, Sebastian Nugroho +2
Uncertainty from renewable energy and loads is one of the major challenges for stable grid operation. Various approaches have been explored to remedy these uncertainties. In this p…