Results 41 to 50 of about 112,353 (156)

A reliable and straightforward index to avoid nuisance trip of the conventional Z‐based loss‐of‐field relay in synchronous generators

IET Generation, Transmission & Distribution, 2022
The conventional impedance (Z)‐based relay which is the well‐known relay to preserve the power plant's synchronous generator (PPSG) against loss of field (LOF) accident may fail during some stable power swing (SPS); on the other hand, most of the ...
Ali Rostami, Navid Rezaei
doaj   +1 more source

Estimation of Daily Photovoltaic Power One Day Ahead With Hybrid Deep Learning and Machine Learning Models

Energy Science & Engineering
In this study, hybrid LSTM‐SVM and hybrid LSTM‐KNN models were developed to predict hourly PV power one day ahead. The performances of these hybrid models were compared with K‐nearest neighbors (KNN), long short‐term memory (LSTM), and support vector ...
Tuba T. Ağır
doaj   +1 more source

What is Power Sharing? Its Meaning and Three Types: Consociationalism, Centripetalism, and Hybrid Power Sharing

Studia Polityczne, 2018
In this article the author analyzes the term “power sharing” (PS) in the context of power exercised within a state. He first examines the term in the very general sense, in which it can be applied to all types and dimensions of power sharing between various groups and institutional entities.
openaire   +1 more source

Enhancing Power Allocation in DAS: A Hybrid Machine Learning and Reinforcement Learning Model

IEEE Access
This paper presents a novel hybrid approach to optimize downlink power allocation in a Distributed Antenna System (DAS) with many Remote Access Units (RAUs) and User Equipment (UEs) randomly distributed in a single cell.
S. Gnanasekar, K. C. Sriharipriya
doaj   +1 more source

Active hybrid bearings as mean for improving stability and diagnostics of heavy rotors of power generating machinery

IOP Conference Series: Materials Science and Engineering, 2020
Abstract The article describes a theoretical study of basic features of active hybrid bearings used as supports for heavy energy-generating machines equipment, primarily turbine generators and their turbines. Due to the adjustable oil supply pressure and using a controller of a rotor position AHB reduces its vibration level.
D V Shutin, R N Polyakov
openaire   +1 more source

Optimal Power Allocation for Channel Estimation in MIMO-OFDM System with Per-Subcarrier Transmit Antenna Selection [PDF]

Radioengineering, 2015
A novel hybrid channel estimator is proposed for multiple-input multiple-output orthogonal frequency- division multiplexing (MIMO-OFDM) system with per-subcarrier transmit antenna selection having optimal power allocation among subcarriers.
K. Rajeswari, S. J. Thiruvengadam
doaj  

Prediction of the optimal hybrid train trajectory by using artificial neural network models

IET Intelligent Transport Systems
This paper presents the development and validation of two artificial neural networks (ANN) models, utilising time and power‐based architectures, to accurately predict key parameters of a hydrogen hybrid train profile and its optimal trajectory.
Tajud Din, Zhongbei Tian, Syed Muhammad Ali Mansur Bukhari, Misbahud Din, Stuart Hillmansen, Clive Roberts   +5 more
doaj   +1 more source

Day-ahead photovoltaic power generation forecasting with the HWGC-WPD-LSTM hybrid model assisted by wavelet packet decomposition and improved similar day method

Engineering Science and Technology, an International Journal
Precisely forecasting output of solar photovoltaics is crucial for (i) effective solar power management, (ii) integration into the electrical grid, (iii) flexible allocation of power resources.
Ruxue Bai, Jinsong Li, Jinsong Liu, Yuetao Shi, Suoying He, Wei Wei   +5 more
doaj   +1 more source

A Comprehensive Review of the Load Forecasting Techniques Using Single and Hybrid Predictive Models

IEEE Access, 2020
Load forecasting is a pivotal part of the power utility companies. To provide load-shedding free and uninterrupted power to the consumer, decision-makers in the utility sector must forecast the future demand for electricity with a minimum error ...
Abdullah Al Mamun, Md. Sohel, Naeem Mohammad, Md. Samiul Haque Sunny, Debopriya Roy Dipta, Eklas Hossain   +5 more
doaj   +1 more source

Emergency Prevention Control as a Means of Power Quality Improvement in a Shipboard Hybrid Electric Power System

Energies
The problems associated with the greenhouse effect have increased the desire to limit carbon dioxide (CO2) emissions into the atmosphere, including emissions produced by shipboard electrical power systems. This has led to a further search for solutions in this area, such as shipboard hybrid electric power systems (SHEPSs). These systems do not yet have
Sergii Tierielnyk, Valery Lukovtsev
openaire   +2 more sources