Results 81 to 90 of about 244,722 (237)

Optimal Control Strategy of Five-Phase PMSMs in a Wide Speed Range Using Third Harmonics

open access: yesInternational Transactions on Electrical Energy Systems
The utilization of the third current harmonic in five-phase motors offers the potential to enhance their performance. This paper presents a comprehensive theory for optimally controlling five-phase permanent magnet synchronous motors (PMSMs) across all ...
Danyal Ghasemi   +2 more
doaj   +1 more source

A Majorization-Minimization Approach to Design of Power Transmission Networks

open access: yes, 2010
We propose an optimization approach to design cost-effective electrical power transmission networks. That is, we aim to select both the network structure and the line conductances (line sizes) so as to optimize the trade-off between network efficiency ...
Chertkov, Michael, Johnson, Jason K.
core   +1 more source

Development of A Loss Minimization Based Operation Strategy for Embedded BTB VSC HVDC

open access: yesApplied Sciences, 2019
Recently, there have been many cases in which direct current (DC) facilities have been placed in alternating current (AC) systems for various reasons. In particular, in Korea, studies are being conducted to install a back-to-back (BTB) voltage-sourced ...
Jaehyeong Lee   +5 more
doaj   +1 more source

The effect of data preprocessing on the performance of artificial neural networks techniques for classification problems [PDF]

open access: yes, 2012
The artificial neural network (ANN) has recently been applied in many areas, such as medical, biology, financial, economy, engineering and so on. It is known as an excellent classifier of nonlinear input and output numerical data.
Atomi, Walid Hasen
core  

Optimal Power Flow of a Power System Incorporating Stochastic Wind Power Based on Modified Moth Swarm Algorithm

open access: yesIEEE Access, 2019
The combined heat and power (CHP) generator not only generates electrical power but also generates heat energy in a single process, which decreases the emission level significantly.
Ehab E. Elattar
doaj   +1 more source

Minimization for Generalized Boolean Formulas [PDF]

open access: yes, 2011
The minimization problem for propositional formulas is an important optimization problem in the second level of the polynomial hierarchy. In general, the problem is Sigma-2-complete under Turing reductions, but restricted versions are tractable. We study
Hemaspaandra, Edith, Schnoor, Henning
core   +1 more source

Wireless Power Transfer for Distributed Estimation in Sensor Networks

open access: yes, 2017
This paper studies power allocation for distributed estimation of an unknown scalar random source in sensor networks with a multiple-antenna fusion center (FC), where wireless sensors are equipped with radio-frequency based energy harvesting technology ...
Ishibashi, Koji   +2 more
core   +1 more source

Distributed Optimal Reactive Power Control of Power Systems

open access: yesIEEE Access, 2018
To accommodate the increasing penetration level of distributed generators (DGs) in the electrical energy power system, appropriate reactive power control of DGs, which can lead to the voltage profile improvement and power loss minimization, should be ...
Irfan Khan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy