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This paper considers the low-observability state estimation problem in power distribution networks and develops a decentralized state estimation algorithm leveraging the matrix completion methodology. Matrix completion has been shown to be…

最优化与控制 · 数学 2019-10-14 April Sagan , Yajing Liu , Andrey Bernstein

With the increase of distributed energy resources in the distribution grid, planning to ensure sufficient infrastructure and resources becomes critical. Planning at the distribution level is limited by the complexities of optimizing…

最优化与控制 · 数学 2022-12-07 Elizabeth Foster , Amritanshu Pandey , Larry Pileggi

This paper proposes a novel fault detector for digital relaying based on independent component analysis (leA). The index for effective detection is derived from independent components of fault current. The proposed fault detector reduces…

系统与控制 · 计算机科学 2016-06-01 Harishchandra Dubey , Soumya Ranjan Mohanty , Nand Kishor

This paper explores whether graph embedding methods can be used as a tool for analysing the robustness of power-grids within the framework of network science. The paper focuses on the strain elevation tension spring embedding (SETSe)…

系统与控制 · 电气工程与系统科学 2021-05-28 Jonathan Bourne

Efficient operation of distribution grids in the smart-grid era is hindered by the limited presence of real-time nodal and line meters. In particular, this prevents the easy estimation of grid topology and associated line parameters that…

系统与控制 · 计算机科学 2020-03-03 Sejun Park , Deepjyoti Deka , Scott Backhaus , Michael Chertkov

The use of phasor angle measurements provided by phasor measurement units (PMUs) in fault detection is regarded as a promising method in identifying locations of power line outages. However, communication errors or system malfunctions may…

系统与控制 · 计算机科学 2016-11-17 Wen-Tai Li , Chao-Kai Wen , Jung-Chieh Chen , Kai-Kit Wong , Jen-Hao Teng , Chau Yuen

The power network reconfiguration algorithm with an "R" modeling approach evaluates its behavior in computing new reconfiguration topologies for the power grid in the context of the Smart Grid. The power distribution network modelling with…

信号处理 · 电气工程与系统科学 2018-06-22 Eonassis O. Santos , Joberto S. B. Martins

We analyze a power distribution line with high penetration of distributed generation and strong variations of power consumption and generation levels. In the presence of uncertainty the statistical description of the system is required to…

最优化与控制 · 数学 2010-06-02 Konstantin S. Turitsyn

In this paper, we address the challenge of learning with limited fault data for power transformers. Traditional operation and maintenance tools lack effective predictive capabilities for potential faults. The scarcity of extensive fault…

机器学习 · 计算机科学 2024-02-14 Chao Wang , Zhuo Chen , Ziyan Zhang , Chiyi Li , Kai Song

This paper introduces a novel graph-analytic approach for detecting anomalies in network flow data called GraphPrints. Building on foundational network-mining techniques, our method represents time slices of traffic as a graph, then counts…

密码学与安全 · 计算机科学 2016-02-04 Christopher R. Harshaw , Robert A. Bridges , Michael D. Iannacone , Joel W. Reed , John R. Goodall

We propose a novel method for topological analysis of unweighted graphs which is based on \textit{persistent homology}. The proposed method maps the input graph to a complete weighted graph where the weighting function maps each edge to a…

代数拓扑 · 数学 2020-07-31 Padraig Corcoran

Accurate estimates of network parameters are essential for modeling, monitoring, and control in power distribution systems. In this paper, we develop a physics-informed graphical learning algorithm to estimate network parameters of…

机器学习 · 计算机科学 2021-02-19 Wenyu Wang , Nanpeng Yu

Diverse fault types, fast re-closures, and complicated transient states after a fault event make real-time fault location in power grids challenging. Existing localization techniques in this area rely on simplistic assumptions, such as…

系统与控制 · 计算机科学 2019-05-20 Wenting Li , Deepjyoti Deka , Michael Chertkov , Meng Wang

Here we develop an approach to predict power grid weak points, and specifically to efficiently identify the most probable failure modes in static load distribution for a given power network. This approach is applied to two examples: Guam's…

最优化与控制 · 数学 2010-09-16 Michael Chertkov , Feng Pan , Mikhail G. Stepanov

The growing complexity of modern Cyber-Physical Systems (CPS) and the frequent communication between their components make them vulnerable to malicious attacks. As a result, secure state estimation is a critical requirement for the control…

最优化与控制 · 数学 2020-10-09 Xusheng Luo , Miroslav Pajic , Michael M. Zavlanos

There is an increasing need for monitoring and controlling uncertainties brought by distributed energy resources in distribution grids. For such goal, accurate multi-phase topology is the basis for correlating measurements in unbalanced…

系统与控制 · 计算机科学 2019-07-15 Yizheng Liao , Yang Weng , Guangyi Liu , Zhongyang Zhao , Chin-woo Tan , Ram Rajagopal

Accurately modeling power distribution grids is crucial for designing effective monitoring and decision making algorithms. This paper addresses the partial observability issue of data-driven distribution modeling in order to improve the…

信号处理 · 电气工程与系统科学 2021-10-08 Shanny Lin , Hao Zhu

This study focuses on the design and development of methods for generating cargo distribution plans for large-scale logistics networks. It uses data from three large logistics operators while focusing on cross border logistics operations…

人工智能 · 计算机科学 2020-09-30 Luka Stopar , Luka Bradesko , Tobias Jacobs , Azur Kurbašić , Miha Cimperman

Cascading failures in power systems propagate non-locally, making the control and mitigation of outages extremely hard. In this work, we use the emerging concept of the tree partition of transmission networks to provide an analytical…

系统与控制 · 计算机科学 2018-08-20 Linqi Guo , Chen Liang , Alessandro Zocca , Steven H. Low , Adam Wierman

Understanding the feasible power flow region is of central importance to power system analysis. In this paper, we propose a geometric view of the power system loadability problem. By using rectangular coordinates for complex voltages, we…

最优化与控制 · 数学 2018-07-31 Y. Weng , R. Rajagopal , B. Zhang