Results 21 to 30 of about 214,860 (277)

Optimal Transmission Switching for Short-Circuit Current Limitation Based on Deep Reinforcement Learning

open access: yesEnergies, 2022
The gradual expansion of power transmission networks leads to an increase in short-circuit current (SCC), which has an impact on the secure operation of transmission networks when the SCC exceeds the interrupting capacity of the circuit breakers. In this
Sirui Tang   +6 more
doaj   +1 more source

Redution of Overvoltages under Connection on a High-Voltage Cable Line Due to Optimal Controlled Switching [PDF]

open access: yesProblems of the Regional Energetics, 2023
The purpose of the work is to develop a mathematical model of a cable transmission line, which allows modeling and choosing the optimal conditions for controlled switching to limit overvoltage at the development and design stage.
Lobodzinskiy V.   +4 more
doaj   +1 more source

Joint TS Beamforming and Hybrid TS-PS Receiving Design for SWIPT Systems

open access: yesIEEE Access, 2021
Simultaneously wireless information and power transfer technology enables information and energy to be transmitted over the same radio frequency (RF) signal.
Shiqi Wang, Lin Ma, Wei Wu
doaj   +1 more source

Virtual-Voltage Partition-Based Approach to Optimal Transmission Switching [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2021
This paper deals with optimal transmission switching (OTS) problems involving discrete binary decisions about network topology and non-convex power flow constraints. We adopt a semidefinite programming formulation for the OPF problem which, however, remains nonconvex due to the presence of discrete variables and bilinear products between the decision ...
Chin-Yao Chang   +2 more
openaire   +2 more sources

New Formulation and Strong MISOCP Relaxations for AC Optimal Transmission Switching Problem [PDF]

open access: yes, 2015
As the modern transmission control and relay technologies evolve, transmission line switching has become an important option in power system operators' toolkits to reduce operational cost and improve system reliability. Most recent research has relied on
Dey, Santanu S.   +2 more
core   +1 more source

Performance analysis with wireless power transfer constraint policies in full-duplex relaying networks [PDF]

open access: yes, 2017
In practice, full-duplex (FD) transmission mode not only helps extend the coverage but also lengthen network lifetime. In this paper, we develop wireless power supply policies, namely separated power (SP) and harvested power (HP) to propose a flexible ...
Nguyen, Hoang-Sy   +3 more
core   +1 more source

Asymmetric Optical Wavelength Switch Based on LCoS-SLM for Edge Node of Optical Access Network

open access: yesIEEE Photonics Journal, 2021
A novel design of optical wavelength switch, based on an asymmetric switching architecture for edge node implementation, is presented in this paper. Compared to previous research for optical core transport network applications, the proposed work has a ...
Hsi-Hsir Chou, Chia-Lun Chen
doaj   +1 more source

Modeling and Optimization of Dual Active Bridge DC-DC Converter with Dead-Time Effect under Triple-Phase-Shift Control

open access: yesEnergies, 2019
Dead-time effect has become an apparent issue in high-switching-frequency high-power dual active bridge (DAB) DC-DC converter. This paper gives a detailed analysis of phase-shift errors effect caused by dead time, including output voltage offset, soft ...
Chaochao Song   +4 more
doaj   +1 more source

A Novel Methodology for Optimal SVC Location Considering N-1 Contingencies and Reactive Power Flows Reconfiguration

open access: yesEnergies, 2021
In this research, an alternative methodology is proposed for the location of Static VAR Compensators (SVC) in power systems, considering the reconfiguration of reactive power flows through the optimal switching of the transmission stage, which resembles ...
Diego Carrión   +3 more
doaj   +1 more source

Optimal Transmission Line Switching Under Geomagnetic Disturbances [PDF]

open access: yesIEEE Transactions on Power Systems, 2018
In recent years, there have been increasing concerns about how geomagnetic disturbances (GMDs) impact electrical power systems. Geomagnetically-induced currents (GICs) can saturate transformers, induce hot spot heating and increase reactive power losses.
Mowen Lu   +5 more
openaire   +2 more sources

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