Results 51 to 60 of about 9,828 (215)

PMU-Based ROCOF Measurements: Uncertainty Limits and Metrological Significance in Power System Applications

, 2019
In modern power systems, the Rate-of-Change-of-Frequency (ROCOF) may be largely employed in Wide Area Monitoring, Protection and Control (WAMPAC) applications. However, a standard approach towards ROCOF measurements is still missing.
Derviskadic, Asja, Frigo, Guglielmo, Paolone, Mario, Zuo, Yihui   +3 more
core   +1 more source

Low‐Temperature Processed Optoelectronic Synapses With Enhanced Responsivity for Edge‐Oriented In‐Sensor Reservoir Computing

Advanced Materials Technologies, EarlyView.
Image pixels are converted into optical pulse sequences to stimulate the optoelectronic synaptic device, generating dynamic responses that form high‐dimensional features. These features improve classification efficiency and demonstrate strong potential for neuromorphic edge computing systems.
Jo‐Lin Chen, Shi‐Qian Guo, Yu‐Chuan Chiu, Po‐Tsun Liu   +3 more
wiley   +1 more source

A method exploiting direct communication between phasor measurement units for power system wide-area protection and control algorithms

MethodsX, 2017
Synchrophasor measurements from Phasor Measurement Units (PMUs) are the primary sensors used to deploy Wide-Area Monitoring, Protection and Control (WAMPAC) systems. PMUs stream out synchrophasor measurements through the IEEE C37.118.2 protocol using TCP/
Muhammad Shoaib Almas, Luigi Vanfretti
doaj   +1 more source

PMUS-HOSGD tensor decomposition method and its application in tag recommendation [PDF]

Jisuanji gongcheng, 2018
The current label recommended system uses tensors to store “user-resource-label” three-dimensional data,mining the potential semantic association among the three.In order to solve the sparseness problem of three-dimensional data and avoid the data ...
YANG Lin,GU Junhua,GUAN Lei
doaj   +1 more source

Concurrently Achieving 4.6 W/M2 and 120,000 Cyclability Enabled by Extendable Swing Arms in Rotational Triboelectric Nanogenerator

Advanced Science, EarlyView.
A rotational energy harvesting device that successfully reconciles high power density with mechanical durability through a hybrid sliding‐and‐bouncing kinematic mechanism is reported. The success reported in our paper includes addressing a dilemma where enhanced electrical output comes at the cost of increased friction and wear, limiting the practical ...
Yihong Lin, Jiaming Zhou, In‐Yong Suh, Eunjong Kim, Kin Chiu Yip, Dae‐jin Kim, Jang‐Mook Jeong, Young‐Jun Kim, Jinyoung Jeon, Ju‐Hyuck Lee, Yoon‐Hwae Hwang, Sang‐Woo Kim, Dong‐Myeong Shin   +12 more
wiley   +1 more source

False Data Injection Attacks on Phasor Measurements That Bypass Low-rank Decomposition

, 2017
This paper studies the vulnerability of phasor measurement units (PMUs) to false data injection (FDI) attacks. Prior work demonstrated that unobservable FDI attacks that can bypass traditional bad data detectors based on measurement residuals can be ...
Chu, Zhigang, Kosut, Oliver, Sankar, Lalitha, Zhang, Jiazi   +3 more
core   +1 more source

Tunable Dynamics via Dual‐Ion Modulation for Event‐based Data Processing Using a Highly Uniform and Self‐Rectifying Memristor Array

Advanced Science, EarlyView.
Tunable dynamics of an interface‐type memristor array enabled by dual‐ion modulation through Ag nanoclusters are demonstrated. A 32 × 32 one‐resistor (1R) array exhibits 100% yield with high temporal/spatial uniformity (<3%) and a rectification ratio of 105.
Yoonho Cho, Dawon Kim, Jeonghong Lee, Dae‐won Kim, See‐On Park, Jongmin Bae, Taehwan Jang, Shinhyun Choi   +7 more
wiley   +1 more source

Optimal placement of phasor measurement units considering islanding contingency, communication infrastructure, and quality of service

Heliyon, 2019
In this study, the PMUs are placed to operate in normal and islanded cases taking into account power system observability, reliability, Communication Infrastructure (CI), and latency time associated with this CI.
M.M.H. Elroby, S.F. Mekhamer, H.E.A. Talaat, M.A.M. Hassan   +3 more
doaj   +1 more source

Design of fault-tolerant control system for distributed energy resources based power network using Phasor Measurement Units

Measurement + Control, 2023
Distributed Energy Resources (DERs) play a significant role in reducing carbon emissions and improving the power system, nonetheless, maintaining the stability of the system parameters under faulty conditions is a major challenge.
Aiman Shahid Butt, Noor ul Huda, Arslan Ahmed Amin   +2 more
doaj   +1 more source

Globally optimal phasor measurement unit placement using branch and bound algorithm

Ain Shams Engineering Journal, 2021
This paper presents a new global optimal Phasor Measurement Unit (PMU) placement approach based on branch and bound algorithm. The proposed technique provides the global minimum number and locations of PMUs for any power system.
Mohamed Z. Kamh, Mohamed R. Younis, Amr M. Ibrahim   +2 more
doaj   +1 more source