Results 31 to 40 of about 214,860 (277)

Learning-assisted optimization for transmission switching

open access: yesTOP
AbstractThe design of new strategies that exploit methods from machine learning to facilitate the resolution of challenging and large-scale mathematical optimization problems has recently become an avenue of prolific and promising research. In this paper, we propose a novel learning procedure to assist in the solution of a well-known computationally ...
Salvador Pineda   +2 more
openaire   +5 more sources

An Electrical Power System Reconfiguration Model Based on Optimal Transmission Switching under Scenarios of Intentional Attacks

open access: yesEnergies, 2023
Currently, operating electrical power systems (EPS) is a complex task that relies on the experience of the operators or the strength of algorithms developed for autonomous operation. The continuous operation of EPS is vulnerable to intentional cybernetic
Juan Toctaquiza   +2 more
doaj   +1 more source

Fieldlike and antidamping spin-orbit torques in as-grown and annealed Ta/CoFeB/MgO layers [PDF]

open access: yes, 2014
We present a comprehensive study of the current-induced spin-orbit torques in perpendicularly magnetized Ta/CoFeB/MgO layers. The samples were annealed in steps up to 300 degrees C and characterized using x-ray absorption spectroscopy, transmission ...
Auffret, Stéphane   +16 more
core   +4 more sources

Exploiting the Inherent Flexibility in Transmission Network for Optimal Scheduling, Wind Power Utilization, and Network Congestion Management

open access: yesIEEE Access, 2021
Owing to the economic, social, and political problems in the expansion of transmission infrastructure, novel transmission topologies are in demand to efficiently utilize the existing infrastructure.
Muhammad Numan   +4 more
doaj   +1 more source

Energy harvesting based two-way full-duplex relaying network over a Rician fading environment: performance analysis [PDF]

open access: yes, 2019
Full-duplex transmission is a promising technique to enhance the capacity of communication systems. In this paper, we propose and investigate the system performance of an energy harvesting based two-way full-duplex relaying network over a Rician fading ...
Ha, Duy-Hung   +4 more
core   +1 more source

An AC OPF-based heuristic algorithm for optimal transmission switching [PDF]

open access: yes2014 Power Systems Computation Conference, 2014
This paper focuses on reducing generators dispatch cost by means of transmission line switching. The problem is formulated as a mixed-integer nonlinear program (MINLP) optimal power flow (OPF). A scalable heuristic algorithm is proposed to break-down the complexity of the problem due to the huge combinatorial space.
Florin Capitanescu, Louis Wehenkel
openaire   +2 more sources

Power Switching Protocol for Two-way Relaying Network under Hardware Impairments [PDF]

open access: yes, 2015
In this paper, we analyze the impact of hardware impairments at relay node and source node (i.e. imperfect nodes) on network performance by evaluating outage probability based on the effective signal to noise and distortion ratio (SNDR).
Dinh-Thuan Do
core   +2 more sources

An Extended Optimal Transmission Switching Algorithm Adapted for Large Networks and Hydro-Electric Context

open access: yesIEEE Access, 2020
Previous works have shown that the best topology of an electrical network depends on the total demand and its distribution. Optimal Transmission Switching (OTS) identifies lines to be opened to minimize operating costs. However, this cost-based criterion
Jacky Belanger   +2 more
doaj   +1 more source

Data-driven Heuristics for DC optimal transmission switching problem

open access: yesCoRR, 2021
The goal of Optimal Transmission Switching (OTS) problem for power systems is to identify a topology of the power grid that minimizes the cost of the system operation while satisfying the operational and physical constraints. Among the most popular methods to solve OTS is to construct approximation via integer linear programming formulations, which ...
Juncheng Li 0009   +3 more
openaire   +2 more sources

Resource Allocation in Wireless Networks with RF Energy Harvesting and Transfer [PDF]

open access: yes, 2014
Radio frequency (RF) energy harvesting and transfer techniques have recently become alternative methods to power the next generation of wireless networks. As this emerging technology enables proactive replenishment of wireless devices, it is advantageous
Han, Zhu   +3 more
core   +1 more source

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