Results 61 to 70 of about 4,708 (205)

Two-phase optimal PMU placement considering complete topological observability level for single line contingency [PDF]

open access: yes, 2017
In order to monitor constantly power systems states, the accurate monitoring technique by Phasor Measurement Unit (PMU) has drawn attention. The use of the PMU as a meter in state estimation for constant understanding the power system state will improve ...
Matsukawa, Yoshiaki   +3 more
core  

What Can Wireless Cellular Technologies Do about the Upcoming Smart Metering Traffic?

open access: yes, 2015
The introduction of smart electricity meters with cellular radio interface puts an additional load on the wireless cellular networks. Currently, these meters are designed for low duty cycle billing and occasional system check, which generates a low-rate ...
Madueño, Germán C.   +5 more
core   +1 more source

Empowering Flexible Electronics with Piezoelectric Nanogenerators: Breakthroughs from Energy Harvesting to Intelligent Sensing

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
This review systematically summarizes recent advances in self‐powered flexible sensing and energy storage systems based on piezoelectric nanogenerators (PENGs). It highlights their fundamental mechanisms, structural designs, and applications in health monitoring, e‐skin, and tactile sensing. The integration of PENGs with supercapacitors or batteries is
Wu‐Lin Xin   +8 more
wiley   +1 more source

Online Learning of Power Transmission Dynamics

open access: yes, 2017
We consider the problem of reconstructing the dynamic state matrix of transmission power grids from time-stamped PMU measurements in the regime of ambient fluctuations. Using a maximum likelihood based approach, we construct a family of convex estimators
Chertkov, Michael   +4 more
core   +1 more source

Al Nanoparticle‐Decorated Metal Oxide Synaptic Transistors for Ultralow‐Energy Neuromorphic Computing with Wide Dynamic Range

open access: yesAdvanced Science, Volume 13, Issue 9, 13 February 2026.
A nanoparticle‐engineered electrolyte‐gated memtransistor is introduced as a materials‐level strategy to overcome the intrinsic trade‐off between energy consumption and synaptic precision. By embedding aluminum nanoparticles at the oxide–electrolyte interface to modulate ion trapping dynamics, the device achieves stable multistate plasticity under ...
Jun‐Gyu Choi   +4 more
wiley   +1 more source

An Improved OPP Problem Formulation for Distribution Grid Observability

open access: yesEnergies, 2018
Phasor measurement units (PMUs) are becoming popular and populating the power system grids rapidly due to their wide range of benefits and applications.
Md Shafiullah   +3 more
doaj   +1 more source

Allocation of synchronized phasor measurement units for power grid observability using advanced binary accelerated particle swarm optimization approach

open access: yesJournal of Electrical Systems and Information Technology, 2023
Large-scale power grid observability is still a challenge because of deteriorating infrastructure and the incorporation of renewable energy sources. A smart grid that makes use of cutting-edge technology, such as a phasor measurement unit (PMU), is an ...
Rohit Babu, Saurav Raj, Sheila Mahapatra
doaj   +1 more source

A Fully Integrated Analog Processing‐in‐Memory System Based on Charge‐Trap Flash Synapse Arrays and Successive Integration‐and‐Rescaling Neurons

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 2, February 2026.
A fully integrated analog processing‐in‐memory system is demonstrated, combining charge‐trap flash synapse arrays with a successive integration‐and‐rescaling neuron circuit. The architecture performs bit‐sliced analog accumulation with high linearity and low power, achieving efficient and scalable analog in‐memory computing and bridging device‐level ...
Sojoong Kim   +4 more
wiley   +1 more source

BTLBO Based SPMUs Placement Optimization for Fault Observation in Power Grid

open access: yesAlgerian Journal of Signals and Systems, 2019
The placement of synchro-phasor measurement units in electric transmission systems has also gained much attention for enhancing the control as well as the protection scheme.
Abdelkader ZITOUNI, Hamid BENTARZI
doaj   +1 more source

Groebner bases algorithm for optimal PMU placement

open access: yesInternational Journal of Electrical Power & Energy Systems, 2020
Abstract In this paper a new method for solving optimal phasor measurement units (PMU) placement problem for full observability in power systems is proposed. A new algorithm is based on forming and solving Groebner bases set of equations for a defined optimization problem.
Vladimir Bečejac, Predrag Stefanov
openaire   +1 more source

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