Search Results for author: Ioannis Zografopoulos

Found 7 papers, 0 papers with code

Event-Triggered Islanding in Inverter-Based Grids

no code implementations27 Jun 2023 Ioannis Zografopoulos, Charalambos Konstantinou

The decentralization of modern power systems challenges the hierarchical structure of the electric grid and requires the implementation of automated schemes that can overcome adverse conditions.

Experimental Impact Analysis of Cyberattacks in Power Systems using Digital Real-Time Testbeds

no code implementations15 Apr 2023 Kalinath Katuri, Ioannis Zografopoulos, Ha Thi Nguyen, Charalambos Konstantinou

Smart grid advancements and the increased integration of digital devices have transformed the existing power grid into a cyber-physical energy system.

Mitigation of Cyberattacks through Battery Storage for Stable Microgrid Operation

no code implementations25 Apr 2022 Ioannis Zografopoulos, Panagiotis Karamichailidis, Andreas T. Procopiou, Fei Teng, George C. Konstantopoulos, Charalambos Konstantinou

In this paper, we present a mitigation methodology that leverages battery energy storage system (BESS) resources in coordination with microgrid (MG) ancillary services to maintain power system operations during cyberattacks.

Behind Closed Doors: Process-Level Rootkit Attacks in Cyber-Physical Microgrid Systems

no code implementations20 Feb 2022 Suman Rath, Ioannis Zografopoulos, Pedro P. Vergara, Vassilis C. Nikolaidis, Charalambos Konstantinou

We investigate the rootkits' precompromise stage involving the deployment to multiple system locations and aggregation of system-specific information to build a neural network-based virtual data-driven model (VDDM) of the system.

Faster than Real-Time Simulation: Methods, Tools, and Applications

no code implementations9 Apr 2021 Xiaorui Liu, Juan Ospina, Ioannis Zografopoulos, Alonzo Russell, Charalambos Konstantinou

Namely, the provided acceleration can be used for improving system scheduling, assessing system vulnerabilities, and predicting system disruptions in real-time systems.

Management Scheduling

Security Assessment and Impact Analysis of Cyberattacks in Integrated T&D Power Systems

no code implementations5 Feb 2021 Ioannis Zografopoulos, Charalambos Konstantinou, Nektarios Georgios Tsoutsos, Dan Zhu, Robert Broadwater

In this paper, we examine the impact of cyberattacks in an integrated transmission and distribution (T&D) power grid model with distributed energy resource (DER) integration.

Blocking

Cyber-Physical Energy Systems Security: Threat Modeling, Risk Assessment, Resources, Metrics, and Case Studies

no code implementations25 Jan 2021 Ioannis Zografopoulos, Juan Ospina, Xiaorui Liu, Charalambos Konstantinou

Leveraging the threat model formulation, we present a CPS framework designed to delineate the hardware, software, and modeling resources required to simulate the CPS and construct high-fidelity models which can be used to evaluate the system's performance under adverse scenarios.

Cryptography and Security Systems and Control Systems and Control

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