Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Walter M. Villa-Acevedo"'
Publikováno v:
Energies, Vol 17, Iss 5, p 1241 (2024)
Electric power distribution networks are exposed to both internal and external disturbances. Lightning strikes are among the latter and are responsible for a significant percentage of damage in distribution transformers, especially in rural areas. El
Externí odkaz:
https://doaj.org/article/d74df4f393774fd4adfc5c0a63b33432
Publikováno v:
Revista UIS Ingenierías, Vol 22, Iss 4 (2023)
A better use of space is achieved when different networks and systems, such as AC transmission lines, transportation systems, and pipelines share the same right-of-way. However, the electromagnetic coupling between the systems may cause the appearanc
Externí odkaz:
https://doaj.org/article/a6b88b8f10c94bd3a4d926d2f0f6ad0b
Autor:
Javier E. Santos-Ramos, Sergio D. Saldarriaga-Zuluaga, Jesús M. López-Lezama, Nicolás Muñoz-Galeano, Walter M. Villa-Acevedo
Publikováno v:
Energies, Vol 17, Iss 1, p 210 (2023)
This paper addresses the protection coordination problem of microgrids combining unsupervised learning techniques, metaheuristic optimization and non-standard characteristics of directional over-current relays (DOCRs). Microgrids may operate under di
Externí odkaz:
https://doaj.org/article/26daeef428264bdfb2c916890e68447b
Publikováno v:
Energies, Vol 16, Iss 17, p 6373 (2023)
Factors such as persistent demand growth, expansion project delays, and the rising adoption of renewable energy sources highlight the importance of operating power systems within safe operational margins. The optimal reactive power dispatch (ORPD) se
Externí odkaz:
https://doaj.org/article/eb8bfbd96d2a4c018687ad271f87a38f
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 2, Pp 1353-1367 (2022)
The ever increasing active and reactive power demands, along with limited sources of generation and delays in transmission expansion projects, have led many power systems to operate near their voltage stability limits. In this context, voltage stabil
Externí odkaz:
https://doaj.org/article/31e707ccc5a64c85b238e74304b742b0
Autor:
Martin M. Sánchez-Mora, David Lionel Bernal-Romero, Oscar Danilo Montoya, Walter M. Villa-Acevedo, Jesús M. López-Lezama
Publikováno v:
Computation, Vol 10, Iss 8, p 128 (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. The ORPD is a nonlinear and nonconvex optimization probl
Externí odkaz:
https://doaj.org/article/41273a6025cc421fbd204d977ec40c5a
Publikováno v:
Computers, Vol 11, Iss 4, p 48 (2022)
Optimal reactive power dispatch plays a key role in the safe operation of electric power systems. It consists of the optimal management of the reactive power sources within the system, usually with the aim of reducing system power losses. This paper
Externí odkaz:
https://doaj.org/article/57d169c8f6384a25892373e6f038ef71
Autor:
Jairo A. Morán-Burgos, Juan E. Sierra-Aguilar, Walter M. Villa-Acevedo, Jesús M. López-Lezama
Publikováno v:
Applied Sciences, Vol 11, Iss 18, p 8535 (2021)
The optimal reactive power dispatch (ORPD) problem plays a key role in daily power system operations. This paper presents a novel multi-period approach for the ORPD that takes into account three operative goals. These consist of minimizing total volt
Externí odkaz:
https://doaj.org/article/c5fb898e0e704f1fbb7f73b86a2202f1
Publikováno v:
Energies, Vol 13, Iss 4, p 857 (2020)
This paper presents a novel approach for Voltage Stability Margin (VSM) estimation that combines a Kernel Extreme Learning Machine (KELM) with a Mean-Variance Mapping Optimization (MVMO) algorithm. Since the performance of a KELM depends on a proper
Externí odkaz:
https://doaj.org/article/185eecfca098419e9bfbc506ea5689f0
Autor:
Cristian Camilo Marín-Cano, Juan Esteban Sierra-Aguilar, Jesús M. López-Lezama, Álvaro Jaramillo-Duque, Walter M. Villa-Acevedo
Publikováno v:
Energies, Vol 12, Iss 7, p 1399 (2019)
Power system operators must schedule the available generation resources required to achieve an economical, reliable, and secure energy production in power systems. This is usually achieved by solving a security-constrained unit commitment (SCUC) prob
Externí odkaz:
https://doaj.org/article/b6e2d3f9e8424e1fbed624b71e98bfa0