Volumen 5 No. especial (2014) - IEE: Congreso de Ingeniería Eléctrica y Electrónica

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Browsing Volumen 5 No. especial (2014) - IEE: Congreso de Ingeniería Eléctrica y Electrónica by Author "González M., Luis G."

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    Diseño de un cargador de baterías en aplicaciones de energía solar
    (Universidad de Cuenca, 2014) Gallardo A., Rafael; Placencia L., Sebastián; González M., Luis G.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUC
    This article addresses the design of a battery charger for off-grid applications powered by photovoltaic solar energy, using a DC-DC buck converter and solar panels with nominal power of 100W. In the control system a perturb and observe (P&O) maximum power point tracking algorithm is applied aiming of operating at the optimum point, using a PWM modulator which controls the output current of the solar panel. The passive elements of the converter are calculated to operate in a continuous conduction mode. The control system uses a dsPIC30F4011, and its performance experimentally verified.
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    Diseño de un convertidor elevador, para aplicaciones de energías renovables en instalaciones aisladas
    (Universidad de Cuenca, 2014) Abril V., Carlos S.; Arias R., Raúl E.; Guerrero C., Layla M.; González M., Luis G.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca
    This article presents the design of a converter DC-DC booster as part of a solar energy system. It employs a cascading scheme consisting of two stages, each with a nominal power of 100W and a 100kHz switching frequency. The passive elements of the converter are calculated to operate in the mode of continuous driving. The converter is designed to support an input voltage of 24V and provide an output voltage of 200V. For this purpose, a PI control is used, which is applied by means of PWM to the second stage of the converter while maintaining constant voltage output of the first stage. The PI control is digitized using the transformation of Tustin, implemented in a dsPIC33FJ12G201.
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    Diseño de un inversor monofásico con topología H5
    (Universidad de Cuenca, 2014) Toledo O., Diego A.; Jaramillo V., Juan C.; Santillan S., Franklin G.; González M., Luis G.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUC
    This paper analyses the design of a DC/AC low power converter for the use of electrical energy from renewable sources. The converter uses a single phase inverter with H5 topology, coupled to a LC filter to reduce harmonic distortion. The system is designed to handle up to 100W and the inverter uses a unipolar Pulse-width modulation (PWM), experimentally tested using an open-loop with dsPIC30F4011 microcontroller.