Results 41 to 50 of about 19,090 (284)

Network constrained optimal performance of DER and CHP based micro-grids within an integrated active-reactive and heat powers scheduling

Ain Shams Engineering Journal, 2021
Nowadays, different types of dispatchable and non-dispatchable distributed energy resource (DER) units, combined heat and power (CHP) plants as well as heat only units are integrated into a micro-grid (MG) platform. These facilities can help MG operators
Abouzar Samimi, Hossein Shateri
doaj   +1 more source

Optimal Reactive Power Dispatch Considering Power Loss of Transformer [PDF]

Proceedings of the 2015 International Forum on Energy, Environment Science and Materials, 2015
A large proportion of power loss in distribution system is from transformer, which is not considered in the traditional Distribution network Reactive Power Optimization (DRPO). This paper proposes a DRPO model considering the power loss of transformer.
Chang min Shi, Qiang Yao, Le er Mao, Guo jun An   +3 more
openaire   +1 more source

Patterns of Postictal Abnormalities in Relation to Status Epilepticus in Adults

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Abnormalities on peri‐ictal diffusion‐weighted magnetic resonance imaging (DWI‐PMAs) are well‐established for patients with status epilepticus (SE), but knowledge on patterns of DWI‐PMAs and their prognostic impact is sparse. Methods This systematic review and individual participant data meta‐analysis included observational studies ...
Andrea Enerstad Bolle, Silvana Sarria‐Estrada, Thomas Bonduelle, Bertram Daniel Dynesen, Manuel Toledo, Zhu Chung Che, Kjell Heuser, Anastasios Chatzikonstantinou, Jérôme Aupy, Udaya Seneviratne, Estevo Santamarina Perez, Christoph Patrick Beier   +11 more
wiley   +1 more source

Decentralized Optimal Reactive Power Dispatch of Optimally Partitioned Distribution Networks

IEEE Access, 2018
This paper proposes a two-stage decentralized optimal reactive power dispatch (D-ORPD) framework, which considers the network partitioning influence in distributed optimization.
Peishuai Li, Zaijun Wu, Ke Meng, Guo Chen, Zhao Yang Dong   +4 more
doaj   +1 more source

Adaptive Range Composite Differential Evolution for Fast Optimal Reactive Power Dispatch

IEEE Access, 2021
This paper proposes a novel adaptive range composite differential evolution (ARCoDE) algorithm to efficiently and accurately solve optimal reactive power dispatch (ORPD) problem.
Ming Niu, Ning Zhou Xu, He Nan Dong, Yang Yang Ge, Yi Tao Liu, Hoon Tong Ngin   +5 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Solution of optimal reactive power dispatch with FACTS devices: A survey

Energy Reports, 2020
With the development of urban and rural infrastructure, the power system is enforced to operate nearly at its full capacity which result in heavily stressed power grid operation, greater loss, peak generation, security threat and instability of the ...
Yasir Muhammad, Rahimdad Khan, Muhammad Asif Zahoor Raja, Farman Ullah, Naveed Ishtiaq Chaudhary, Yigang He   +5 more
doaj   +1 more source

Probabilistic Optimal Active and Reactive Power Dispatch including Load and Wind Uncertainties considering Correlation

International Transactions on Electrical Energy Systems, 2023
The increased integration of renewable energies (REs) raised the uncertainties of power systems and has changed the approach to dealing with power system challenges.
Mahmmadsufiyan Shaik, Dattatraya N. Gaonkar, Ramakrishna S. S. Nuvvula, Polamarasetty P. Kumar, Baseem Khan   +4 more
doaj   +1 more source

Solving the Optimal Reactive Power Dispatch Problem through a Python-DIgSILENT Interface

Computation, 2022
The Optimal Reactive Power Dispatch (ORPD) problem consists of finding the optimal settings of reactive power resources within a network, usually with the aim of minimizing active power losses.
Martin M. Sánchez-Mora, David Lionel Bernal-Romero, Oscar Danilo Montoya, Walter M. Villa-Acevedo, Jesús M. López-Lezama   +4 more
doaj   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source