Search Results for author: Elena Gryazina

Found 6 papers, 4 papers with code

Power System Anomaly Detection and Classification Utilizing WLS-EKF State Estimation and Machine Learning

1 code implementation26 Sep 2022 Sajjad Asefi, Mile Mitrovic, Dragan Ćetenović, Victor Levi, Elena Gryazina, Vladimir Terzija

This paper presents a new algorithm for detecting anomaly presence, classifying the anomaly type and identifying the origin of the anomaly, i. e., measurements that contain gross errors in case of bad data, or buses associated with loads experiencing a sudden change, or state variables targeted by false data injection attack.

Anomaly Classification Anomaly Detection

COLD: Concurrent Loads Disaggregator for Non-Intrusive Load Monitoring

1 code implementation4 Jun 2021 Ilia Kamyshev, Dmitrii Kriukov, Elena Gryazina

The modern artificial intelligence techniques show the outstanding performances in the field of Non-Intrusive Load Monitoring (NILM).

Non-Intrusive Load Monitoring

Optimal partitioning in distributed state estimation considering a modified convergence criterion

no code implementations9 Apr 2021 Sajjad Asefi, Elena Gryazina, Helder Leite

In this paper, first, a modified convergence criterion is proposed and has been tested for different approaches of DSE problem, considering the most important factors such as iteration number, convergence rate, and data needed to be transferred to/from each area.

Clustering

Application of blockchain for secure data transmission in distributed state estimation

1 code implementation9 Apr 2021 Sajjad Asefi, Yash Madhwal, Yury Yanovich, Elena Gryazina

The application of renewable energy sources in the power grid increases the necessity of tracking the system's state, especially in smart grids, where there is a bidirectional transfer of data and power.

Distributed state estimation: a novel stopping criterion

no code implementations1 Dec 2020 Sajjad Asefi, Sergei Parsegov, Elena Gryazina

Centralized state estimation due to the complexity of new networks and growing size of power network will face problems such as communication bottleneck in real-time analyzing of the system or reliability issues.

Geometry of quadratic maps via convex relaxation

1 code implementation1 Oct 2018 Anatoly Dymarsky, Elena Gryazina, Sergei Volodin, Boris Polyak

We consider several basic questions pertaining to the geometry of image of a general quadratic map.

Optimization and Control

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