Zobrazeno 1 - 10
of 275
pro vyhledávání: '"Carlos A. Ramos-Paja"'
Autor:
Daniel González-Montoya, Carlos A. Ramos-Paja, Bernardo A. Potosí-Guerrero, Elkin E. Henao-Bravo, Andrés Julián Saavedra-Montes
Publikováno v:
TecnoLógicas, Vol 21, Iss 43, Pp 71-89 (2018)
The sustainable power solutions provided tonon-interconnected zonesshould bebased on the renewable energy resources available in each area. Thispresents a challenge for the techno-economic feasibility of alternativesolutionsthrough micro grids. Theob
Externí odkaz:
https://doaj.org/article/95e36e44275548fcbed2b2479d33842e
Publikováno v:
TecnoLógicas, Vol 21, Iss 42, Pp 129-145 (2018)
In stand-alone photovoltaic (PV) systems, battery chargers are important to guarantee the energy supply when sunlight is not available. Such chargers need to track the maximum power point (MPPT) and limit the derivative of the batteries’ charging c
Externí odkaz:
https://doaj.org/article/02de14d71e4c4034a0447e5d44b6276b
Autor:
Julián Peláez-Restrepo, Sergio I. Serna-Garcés, Carlos A. Ramos-Paja, Daniel Gonzalez-Montoya
Publikováno v:
TecnoLógicas, Vol 20, Iss 38, Pp 55-69 (2017)
In many papers, the averaged model of power switching converters is used to design the control system due to its simple manipulation, which can be approximated by linear transfer functions. Therefore, the power converter commutation causes a state va
Externí odkaz:
https://doaj.org/article/c2486943b0a9467c87d9a20cea135518
Autor:
Carlos A. Ramos-Paja, Daniel González-Montoya, Adriana Trejos-Grisales, Sergio I. Serna-Garcés
Publikováno v:
TecnoLógicas, Vol 21, Iss 42, Pp 9-11 (2018)
Processing electrical energy is one of the most important research fields in our society. So far, tremendous efforts have been made to improve the efficiency of each step in electrical systems: generation systems have been enhanced by introducing ren
Externí odkaz:
https://doaj.org/article/be8fb0169efa43aca4ed6cbf75886720
Publikováno v:
TecnoLógicas, Vol 19, Iss 37, Pp 93-106 (2016)
Fuel cells are a technological alternative to produce green energy, however, high costs make fuel cell a non-profitable option. This paper analyses the impact of the Colombian government incentives in the profitability of fuel cells. The analysis is
Externí odkaz:
https://doaj.org/article/fbbb7ee4044c4dafbe667c34d636afe6
Publikováno v:
TecnoLógicas, Vol 19, Iss 37, Pp 45-59 (2016)
This paper presents a control system for reducing the hydrogen consumption for a Polymer Electrolyte Membrane fuel cell, also considering parametric uncertainties. The control system is based on a non-linear state space model of the fuel cell, a Kalm
Externí odkaz:
https://doaj.org/article/24006d11e6ad49538bbce808471bdb92
Autor:
Elkin E. Henao-Bravo, David A. Márquez-Viloria, Juan P. Villegas-Ceballos, Sergio I. Serna-Garcés, Carlos A. Ramos-Paja, Daniel González-Montoya
Publikováno v:
TecnoLógicas, Vol 19, Iss 37, Pp 107-124 (2016)
This paper presents a model of photovoltaic generation systems oriented to evaluate the performance of distributed maximum power point tracking algorithms. The model considers the series connection of n module-converter sets, which can be dimensioned
Externí odkaz:
https://doaj.org/article/bbe906e16f654847a82bdbf5ec083e9b
Publikováno v:
TecnoLógicas, Vol 18, Iss 35, Pp 57-69 (2015)
Modeling and simulation of photovoltaic (PV) systems are open research areas since I-V and P-V curves are commonly required to analyze the performance of PV installations. To obtain such curves commercial software packages can be used, however the co
Externí odkaz:
https://doaj.org/article/f148134483a54f5ea874dd270af48b54
Publikováno v:
TecnoLógicas, Vol 0, Iss 0, Pp 195-208 (2013)
A simple procedure to estimate the transfer function parameters, based on the step response, of a system composed by a speed driver and a permanent magnet direct current motor is presented in this paper. The identification process is composed by the
Externí odkaz:
https://doaj.org/article/cb3cb9512ce7408a9a4309f8b91a0fb6
Publikováno v:
TecnoLógicas, Vol 0, Iss 0, Pp 109-122 (2013)
A set of recommendations to select error indices to model validation is presented in this paper. The recommendations are based on the comparison of indices used to validate dynamic systems. Nine error indices and one fit index are presented and mathe
Externí odkaz:
https://doaj.org/article/765500ab8bbe4fba8562923eef49bdd7