no code implementations • 15 May 2024 • Marcus Nóbrega Gomes Jr., Igor Matheus Benites, Salma M. Elsherif, Ahmad F. Taha, Marcio H. Giacomoni
In this paper, however, we develop an alternative method that uses the built-in solver capabilities of Excel, does not require initial mass-conservative estimation, and is free of flow corrections.
no code implementations • 13 May 2024 • Muhammad Nadeem, Ahmad F. Taha
This paper deals with the joint reduction of dynamic states (internal states of generator, solar, and loads, etc) and algebraic variables (states of the network e. g., voltage and phase angles) of a nonlinear differential-algebraic equation (NDAE) model of power networks.
no code implementations • 8 May 2024 • Mohamad Kazma, Ahmad F. Taha
The proposed method is based on optimizing metrics equivalent to the Lyapunov spectrum of exponents; its underlying properties result in a computationally efficient and scalable stable node identification algorithm for renewable energy resources allocation.
no code implementations • 7 Mar 2024 • Marcus Nóbrega Gomes Jr, Ahmad F. Taha, Luis Miguel C. Rápallo, Eduardo M. Mendiondo, Marcio H. Giacomoni
In this paper, we develop a distributed quasi-2D hydrologic-hydrodynamic coupled with a reservoir flood routing model and an optimization approach (MPC) to identify the opening or closing of valves and movable gates working as spillways.
no code implementations • 22 Feb 2024 • Mohamad H. Kazma, Ahmad F. Taha
One common approach to quantify observability for nonlinear systems is via the Empirical Gramian (Empr-Gram) -- a generalized form of the Gramian of linear systems.
no code implementations • 24 Jan 2024 • MirSaleh Bahavarnia, Junyi Ji, Ahmad F. Taha, Daniel B. Work
The main objective of the connected and automated vehicle (CAV) platoon control problem is to regulate CAVs' position while ensuring stability and accounting for vehicle dynamics.
no code implementations • 22 Jan 2024 • Salma M. Elsherif, Mohamad H. Kazma, Ahmad F. Taha
An added challenge is the dependency of the water quality dynamics on the system's hydraulics, which influences the performance of the water quality controller.
no code implementations • 12 Dec 2023 • Wenjie Mei, Muhammad Nadeem, MirSaleh Bahavarnia, Ahmad F. Taha
Finally, the paper demonstrates the efficacy and precision of the proposed NN through the identification and simulation of solution trajectories for the considered DAE-modeled power system.
no code implementations • 29 Nov 2023 • MirSaleh Bahavarnia, Muhammad Nadeem, Ahmad F. Taha
Many mainstream robust control/estimation algorithms for power networks are designed using the Lyapunov theory as it provides performance guarantees for linear/nonlinear models of uncertain power networks but comes at the expense of scalability and sensitivity.
no code implementations • 1 Oct 2023 • Muhammad Nadeem, MirSaleh Bahavarnia, Ahmad F. Taha
Due to the rapid developments in synchronized measurement technologies, there exist enormous opportunities to attenuate disturbances in future power grids with high penetration of renewables and complex load demands.
no code implementations • 30 Jul 2023 • MirSaleh Bahavarnia, Ahmad F. Taha
A typical approach to attenuate the impacts of such perturbations on the system stability is repeating the whole controller design procedure to find an updated stabilizing SOF controller.
no code implementations • 13 Jul 2023 • Mohamad H. Kazma, Sebastian A. Nugroho, Aleksandar Haber, Ahmad F. Taha
The approach is performed by discretizing the system's dynamics using the implicit Runge-Kutta method and by introducing a state-averaged observability measure.
no code implementations • 30 Jun 2023 • Mohamad H. Kazma, Ahmad F. Taha
DAE system theory is less understood in the context of power system dynamics.
no code implementations • 23 Jun 2023 • Mohamad H. Kazma, Ahmad F. Taha
A moving horizon estimation approach is explored to reconstruct the joint differential and algebraic initial states of the system, as a gateway to the OPP problem which is then formulated as a computationally tractable integer program (IP).
no code implementations • 17 Jun 2023 • Suyash C. Vishnoi, Junyi Ji, MirSaleh Bahavarnia, Yuhang Zhang, Ahmad F. Taha, Christian G. Claudel, Daniel B. Work
The effectiveness of the proposed traffic control algorithms is tested using a traffic control example and compared with existing proportional-integral (PI)- and model predictive control (MPC)- based controllers from the literature.
no code implementations • 7 Apr 2023 • Muhammad Nadeem, Ahmad F. Taha
This paper presents a new approach to solve or approximate the AC optimal power flow (ACOPF).
no code implementations • 20 Feb 2023 • Salma M. Elsherif, Ahmad F. Taha, Ahmed A. Abokifa, Lina Sela
Tracing disinfectant (e. g., chlorine) and contaminants evolution in water networks requires the solution of 1- D advection-reaction (AR) partial differential equations (PDEs).
no code implementations • 20 Sep 2022 • Muhammad Nadeem, Ahmad F. Taha
Conventional state estimation routines of electrical grids are mainly reliant on dynamic models of fossil fuel-based resources.
no code implementations • 6 Sep 2022 • Suyash C. Vishnoi, Sebastian A. Nugroho, Ahmad F. Taha, Christian G. Claudel
Various state-estimation methods used for TSE in the literature along with the presented approach are compared with regard to accuracy and computational tractability with the help of a numerical study using the VISSIM traffic simulation software.
no code implementations • 13 Jul 2022 • Shen Wang, Ankush Chakrabarty, Ahmad F. Taha
Traditional control and monitoring of water quality in drinking water distribution networks (WDN) rely on mostly model- or toolbox-driven approaches, where the network topology and parameters are assumed to be known.
no code implementations • 15 Jun 2022 • 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 nonlinear differential algebraic equation (NDAE) power network models, under uncertainty.
1 code implementation • 2 May 2022 • Marcus N. Gomes Junior, Marcio H. Giacomoni, Ahmad F. Taha, Eduardo M. Mendiondo
In addition, there is an absence of a coupled integrated control model for systems composed of watersheds, reservoirs, and channels for flood mitigation.
no code implementations • 29 Apr 2022 • Salma M. Elsherif, Shen Wang, Ahmad F. Taha, Lina Sela, Marcio H. Giacomoni, Ahmed Abokifa
Chlorine is a widely used disinfectant and proxy for water quality (WQ) monitoring in water distribution networks (WDN).
no code implementations • 21 Apr 2021 • Sebastian A. Nugroho, Suyash C. Vishnoi, Ahmad F. Taha, Christian G. Claudel
The stabilization of unstable nonlinear systems and tracking control are challenging engineering problems due to the encompassed nonlinearities in dynamic systems and their scale.
no code implementations • 22 Feb 2021 • Shen Wang, Ahmad F. Taha, Ankush Chakrabarty, Lina Sela, Ahmed Abokifa
Such representation is a byproduct of space- and time-discretization of the PDE modeling transport dynamics.
no code implementations • 27 Dec 2020 • Sebastian A. Nugroho, Ahmad F. Taha
Sensor and actuator selection problems (SASP) are some of the core problems in dynamic systems design and control.
1 code implementation • 25 Apr 2020 • Sebastian A. Nugroho, Ahmad F. Taha, and Vu Hoang
Second, we utilize a derivative-free, interval-based global maximization algorithm based on branch-and-bound framework to numerically obtain the bounding constants.