Search Results for author: Subhash Lakshminarayana

Found 10 papers, 0 papers with code

A Game-Theoretic Approach for PMU Deployment Against False Data Injection Attacks

no code implementations16 Apr 2024 Sajjad Maleki, Subhash Lakshminarayana, E. Veronica Belmega, Carsten Maple

Phasor Measurement Units (PMUs) are used in the measurement, control and protection of power grids.

The Impact of Load Altering Attacks on Distribution Systems with ZIP Loads

no code implementations10 Nov 2023 Sajjad Maleki, Shijie Pan, E. Veronica Belmega, Charalambos Konstantinou, Subhash Lakshminarayana

Load-altering attacks (LAAs) pose a significant threat to power systems with Internet of Things (IoT)-controllable load devices.

Communication Reduction for Power Systems: An Observer-Based Event-Triggered Approach

no code implementations30 Aug 2023 Gabriel E. Mejia-Ruiz, Yazdan Batmani, Subhash Lakshminarayana, Shehab Ahmed, Charalambos Konstantinou

This paper presents an event detection mechanism that significantly reduces the volume of data transmission to perform necessary control actions, using a scalable scheme that enhances the stability and reliability of power grids.

Event Detection Management

Optimal Placement and Power Supply of Distributed Generation to Minimize Power Losses

no code implementations30 Aug 2023 Shijie Pan, Sajjad Maleki, Subhash Lakshminarayana, Charalambos Konstantinou

Additionally, the reactive power supply from the DGs can further reduce power losses in the distribution grid and improve power transmission efficiency.

Localization of Coordinated Cyber-Physical Attacks in Power Grids Using Moving Target Defense and Deep Learning

no code implementations25 Jul 2022 Yexiang Chen, Subhash Lakshminarayana, Fei Teng

As one of the most sophisticated attacks against power grids, coordinated cyber-physical attacks (CCPAs) damage the power grid's physical infrastructure and use a simultaneous cyber attack to mask its effect.

Meta-Learning

Analysis of Load-Altering Attacks Against Power Grids: A Rare-Event Sampling Approach

no code implementations6 May 2022 Maldon Patrice Goodridge, Subhash Lakshminarayana, Christopher Few

By manipulating tens of thousands of internet-of-things (IoT) enabled high-wattage electrical appliances (e. g., WiFi-controlled air-conditioners), large-scale load-altering attacks (LAAs) can cause severe disruptions to power grid operations.

Data-Driven Detection and Identification of IoT-Enabled Load-Altering Attacks in Power Grids

no code implementations1 Oct 2021 Subhash Lakshminarayana, Saurav Sthapit, Hamidreza Jahangir, Carsten Maple, H Vincent Poor

Timely detection and identification of any compromised nodes are essential to minimise the adverse effects of these attacks on power grid operations.

Edge-computing

A Comparison of Data-Driven Techniques for Power Grid Parameter Estimation

no code implementations8 Jul 2021 Subhash Lakshminarayana, Saurav Sthapit, Carsten Maple

Our results show that the SINDy algorithm outperforms the PINN and UKF algorithms in being able to accurately estimate the power grid parameters over a wide range of system parameters (including high and low inertia systems).

A Meta-Learning Approach to the Optimal Power Flow Problem Under Topology Reconfigurations

no code implementations21 Dec 2020 Yexiang Chen, Subhash Lakshminarayana, Carsten Maple, H. Vincent Poor

To overcome this drawback, we propose a DNN-based OPF predictor that is trained using a meta-learning (MTL) approach.

Meta-Learning

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