Results 11 to 20 of about 17,388 (113)

Performance Analysis of a Peak‐Current Mode Control with Compensation Ramp for a Boost‐Flyback Power Converter

Journal of Control Science and Engineering, Volume 2016, Issue 1, 2016., 2016
High voltage gain power converters are very important in photovoltaic applications mainly due to the low output voltage of photovoltaic arrays. This kind of power converters includes three or more semiconductor devices and four or more energy storage elements, making the dynamical analysis of the controlled system more difficult.
Juan-Guillermo Muñoz, Guillermo Gallo, Gustavo Osorio, Fabiola Angulo, Ayman S. Abdel-Khalik   +4 more
wiley   +1 more source

Controller Design for a Second‐Order Plant with Uncertain Parameters and Disturbance: Application to a DC Motor

Abstract and Applied Analysis, Volume 2013, Issue 1, 2013., 2013
This paper shows the controller design for a second‐order plant with unknown varying behavior in the parameters and in the disturbance. The state adaptive backstepping technique is used as control framework, but important modifications are introduced.
Alejandro Rincón, Fredy E. Hoyos, Fabiola Angulo, Gani Stamov   +3 more
wiley   +1 more source

Dynamics of a Bioreactor with a Bacteria Piecewise‐Linear Growth Model in a Methane‐Producing Process

Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013
This paper shows a study, both analytical and numerical, of a continuous‐time dynamical system associated with a simple model of a wastewater biorreactor. Nonsmooth phenomena and border‐collision local bifurcations appear when the main parameters (dilution and biomass concentration at the inflow) are varied.
Luz A. Melo Varela, Simeón Casanova Trujillo, Gerard Olivar Tost, Bing Chen   +3 more
wiley   +1 more source

Adaptive Quasi‐Sliding Mode Control for Permanent Magnet DC Motor

Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013
The motor speed of a buck power converter and DC motor coupled system is controlled by means of a quasi‐sliding scheme. The fixed point inducting control technique and the zero average dynamics strategy are used in the controller design. To estimate the load and friction torques an online estimator, computed by the least mean squares method, is used ...
Fredy E. Hoyos, Alejandro Rincón, John Alexander Taborda, Nicolás Toro, Fabiola Angulo, Guanghui Sun   +5 more
wiley   +1 more source

Quantization Effects on Period Doubling Route to Chaos in a ZAD‐Controlled Buck Converter

Mathematical Problems in Engineering, Volume 2012, Issue 1, 2012., 2012
The quantization effect in transitions to chaos and periodic orbits is analyzed in this paper through a specific application, the zero‐average‐dynamics‐ (ZAD‐) controlled buck power converter. Several papers have studied the quantization effects in the one periodic orbit and some authors have given guidelines to design digitally controlled power ...
John Alexander Taborda, Daniel Burbano, Fabiola Angulo, Cristian Toma   +3 more
wiley   +1 more source

Two‐Valued Control for a Second‐Order Plant with Additive External Disturbance

Mathematical Problems in Engineering, Volume 2012, Issue 1, 2012., 2012
In this work a two‐valued state feedback control for a plant of second order with known constant coefficients and an additive bounded disturbance is designed. In this controller the control signal can take only two possible values. The controller design is based on Lyapunov‐like function method, achieving the convergence of the tracking error to a user‐
Alejandro Rincon, Felipe Londoño, Fabiola Angulo, Oded Gottlieb   +3 more
wiley   +1 more source

Optimum Stochastic Allocation for Demand Response for Power Markets in Microgrids

Energies
This research incorporates an electricity market model based on a stochastic allocation of distributed resources and the analysis of an optimal demand response for a smart microgrid.
Edwin Garcia, Alexander Águila, Leony Ortiz, Milton Ruiz   +3 more
doaj   +1 more source

APLICACIÓN DE LAS REDES INTELIGENTES PARA EL AUMENTO DE LA EFICIENCIA ENERGÉTICA EN LAS REDES ELÉCTRICAS

Revista de Investigaciones en Energía, Medio Ambiente y Tecnología, 2016
: In the presented work stands as a short time ago, the dominant paradigm consisted of universal service and its centralization. In this sense refers to the electricity grid of the future requires a radical and qualitative leap due to the need to better ...
Lenin Agustín Cuenca Alava
doaj   +1 more source

Adjustment of model parameters to estimate distribution transformers remaining lifespan [PDF]

, 2018
Currently, the electrical system in Argentina is working at its maximum capacity, decreasing the margin between the installed power and demanded consumption, and drastically reducing the service life of transformer substations due to overload (since the ...
Gotay Sardiñas, Jorge, Jimenez, Victor Adrian, Rodriguez, Sebastian Alberto, Will, Adrian L. E.   +3 more
core   +1 more source

A criação de valor no binómio: “Casa inteligente” / consumidor [PDF]

, 2010
Este trabalho tem como objectivo entender a criação de valor no binómio casa inteligente/consumidor, esperando assim contribuir para um novo equilíbrio procura/oferta tendente a que uma casa inteligente fique acessível a mais lares portugueses.
Flores, António Manuel Luzano de Quadros
core   +2 more sources