Results 1 to 10 of about 9,898 (114)

On the Conic Convex Approximation to Locate and Size Fixed-Step Capacitor Banks in Distribution Networks [PDF]

Computation, 2022
The problem of the optimal siting and sizing of fixed-step capacitor banks is studied in this research from the standpoint of convex optimization. This problem is formulated through a mixed-integer nonlinear programming (MINLP) model, in which its binary/
Oscar Danilo Montoya, Walter Gil-González, Alejandro Garcés   +2 more
doaj   +3 more sources

Optimal Selection and Location of Fixed-Step Capacitor Banks in Distribution Networks Using a Discrete Version of the Vortex Search Algorithm [PDF]

Energies, 2020
This paper deals with the problem of the optimal selection of capacitor banks in electrical AC distribution systems for minimizing the costs of energy losses during a year of operation through a discrete version of the vortex search algorithm (DVSA ...
Walter Gil-González, Oscar Danilo Montoya, Arul Rajagopalan, Luis Fernando Grisales-Noreña, Jesus C. Hernández   +4 more
doaj   +2 more sources

Selection and Location of Fixed-Step Capacitor Banks in Distribution Grids for Minimization of Annual Operating Costs: A Two-Stage Approach

Computers, 2022
The problem regarding the optimal location and sizing of fixed-step capacitor banks in distribution networks with radial configuration is studied in this research by applying a two-stage optimization approach.
Oscar Danilo Montoya, Edwin Rivas-Trujillo, Diego Armando Giral-Ramírez   +2 more
doaj   +3 more sources

Efficient Integration of Fixed-Step Capacitor Banks and D-STATCOMs in Radial and Meshed Distribution Networks Considering Daily Operation Curves

Energies, 2023
The problem regarding the optimal integration of efficient reactive power compensation in radial and meshed distribution networks using fixed-step capacitor banks and distribution static compensators (D-STATCOMs) is addressed in this research paper by ...
Oscar Danilo Montoya, Walter Gil-González, Jesus C. Hernández   +2 more
doaj   +2 more sources

Annual Operating Costs Minimization in Electrical Distribution Networks via the Optimal Selection and Location of Fixed-Step Capacitor Banks Using a Hybrid Mathematical Formulation

Mathematics, 2022
The minimization of annual operating costs in radial distribution networks with the optimal selection and siting of fixed-step capacitor banks is addressed in this research by means of a two-stage optimization approach.
Oscar Danilo Montoya, Francisco David Moya, Arul Rajagopalan   +2 more
doaj   +3 more sources

Stochastic Mixed-Integer Branch Flow Optimization for the Optimal Integration of Fixed-Step Capacitor Banks in Electrical Distribution Grids

Ingeniería
Context: The use of capacitor banks is the most common and preferred solution for reducing power loss in electrical distribution networks, given their cost-effectiveness and low maintenance requirements.
Walter Julián Gil-González, Andrés Ricardo Herrera-Orozco, Alexander Molina-Cabrera   +2 more
doaj   +2 more sources

Optimal Phase-Balancing in Three-Phase Distribution Networks Considering Shunt Reactive Power Compensation with Fixed-Step Capacitor Banks

Sustainability, 2022
The black hole optimization (BHO) method is applied in this research to solve the problem of the optimal reactive power compensation with fixed-step capacitor banks in three-phase networks considering the phase-balancing problem simultaneously. A master–slave optimization approach based on the BHO in the master stage considers a discrete codification ...
Daniel Federico A. Medina-Gaitán, Ian Dwrley Rozo-Rodriguez, Oscar Danilo Montoya   +2 more
openaire   +2 more sources

Design of a 3 GHz fine resolution LC DCO [PDF]

, 2017
In this thesis, the design of a fine resolution LC digitally controlled oscillator (DCO) is introduced. Two NMOS varactor banks are used to achieve 12 bits medium and fine frequency tuning.
Zhao, Xuming, active 21st century
core   +1 more source

Noise shaping Asynchronous SAR ADC based time to digital converter [PDF]

, 2018
Time-to-digital converters (TDCs) are key elements for the digitization of timing information in modern mixed-signal circuits such as digital PLLs, DLLs, ADCs, and on-chip jitter-monitoring circuits.
Katragadda, Sowmya
core   +1 more source

Solidification of Al alloys under electromagnetic pulses and characterization of the 3D microstructures under synchrotron x-ray tomography [PDF]

, 2015
A novel programmable electromagnetic pulse device was developed and used to study the solidification of Al-15 pct Cu and Al-35 pct Cu alloys. The pulsed magnetic fluxes and Lorentz forces generated inside the solidifying melts were simulated using finite
Andrew J. Bodey, C. Song, C.Y. Ho, Christoph Rau, D. Bernard, E. Basham, E.G. Bakhoum, E.O. Hall, G.I. Eskin, G.N. Ramachandran, G.P. Jones, J.A. Dantzig, J.A. Wert, Jiawei Mi, L. Li, M. Garnier, M. Guo, M. Johnsson, M.C. Flemings, M.J. Li, N. Pei, N.Y. Konstantinova, P. Koltun, Peter Lobo Kazinczi, Q. Li, S. Asai, S. Bartkevičius, S. Dan, S. Eckert, S. Tamirisakandala, S. Titarenko, S.D. Pawar, S.H. Hanhn, T. Campanella, Theerapatt Manuwong, W. Dai, Wei Zhang, X. Li, Y. Du, Y. Plevachuk, Y.J. Zhang, Z. Shu-cai, Z.X. Yin   +42 more
core   +1 more source