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Sanchez V.,University of Quintana Roo | Chan F.,University of Quintana Roo | Ramirez J.M.,CINVESTAV | Rosas-Caro J.C.,Madero City Technological Institute
2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012 | Year: 2012

This paper shows the design and implementation of a Fuel Cell (FC) system emulator through the Hardware-in-loop (HIL) technique. The proposed FC emulator is tested on a detailed nonlinear simulator taken from the open literature. The goal of this research is the setup of a test bench that allows developing and testing control strategies in a FC system as well as to dispose with a platform for developing new power conditioning converters for this kind of systems. The Proton Exchange Membrane Fuel Cell (PEMFC) is the class of FC addressed in this research. The emulator is based on an interleaved buck converter in order to get a test bench with an output voltage of good quality. © 2012 IEEE. Source


Garcia-Guendulain C.,Altamira | Rosas-Caro J.C.,Madero City Technological Institute | Garcia-Guendulain J.L.,Madero City Technological Institute | Torres-Orozco C.G.,Altamira | Salas-Cabrera R.,Madero City Technological Institute
CONIELECOMP 2010 - 20th International Conference on Electronics Communications and Computers | Year: 2010

This paper describes the design and implementation of system to measure the heart frequency and rate based on a Doppler ultrasonic sensor, an analog filter and amplifier board, a frequency detecting circuit, an envelop detector and a microcontroller. The system is designed to measure the correct heart rate and give statistical information about the heart properly operation. ©2010 IEEE. Source


Rosas-Caro J.C.,Madero City Technological Institute | Mancilla-David F.,University of Colorado at Denver | Mayo-Maldonado J.C.,University of Southampton | Gonzalez-Lopez J.M.,Technological University of Mexico | And 2 more authors.
IEEE Transactions on Industrial Electronics | Year: 2013

This letter proposes a boost dc-dc converter topology with the novel capability of canceling the input current ripple at an arbitrarily preselected duty cycle. This is accomplished without increasing the count of the number of components in contrast to other solutions available in the literature. In addition, the converter features a high voltage gain without utilizing extreme values of duty cycle or boosting transformers. These features make the converter ideal to process electric power coming from low-voltage power-generating sources, such as renewables. This paper provides details on the principle of operation via topological considerations and a mathematical model. The key factor of reactive component sizing is also discussed in detail. The converter was validated in the laboratory through the construction of a hardware prototype. © 1982-2012 IEEE. Source


Rosas-Caro J.C.,Madero City Technological Institute | Mancilla-David F.,University of Colorado at Denver | Gonzalez-Lopez J.M.,Technological University of Mexico | Ramirez-Arredondo J.M.,CINVESTAV | And 4 more authors.
CONIELECOMP 2010 - 20th International Conference on Electronics Communications and Computers | Year: 2010

AC choppers are a family of ac-to-ac power converters that can be derived from the traditional dc-to-dc converters. Research activity in this kind of converter has recently increased in applications for power conditioning - such as voltage control in the distribution system and power flow control in the transmission system - as an alternative for the dc-link approach compensators based on voltage source converters. The control is simpler and the power rating of the devices is smaller for compensators with the same power rating; the main drawback is they cannot control the output-voltage frequency as the matrix converter. This paper presents a state-of-the-art review on the development of ac-choppers. The principle of operation is explained by using the six switches three-phase buck converter as an example. The main applications used in power conditioning and power flow control are introduced along with emerging topologies. ©2010 IEEE. Source


Rosas-Caro J.C.,Madero City Technological Institute | Flores-Hernandez J.E.,Madero City Technological Institute | Mayo-Maldonado J.C.,Madero City Technological Institute | Gonzalez-Lopez J.M.,Technological University of Mexico | And 2 more authors.
IEICE Electronics Express | Year: 2012

This work proposes a PWM quadrature phase shifter which uses only two driven switches. The PWM control is based on DC signals asynchronous from the grid, free of PLL and trigonometric calculations, the control can be accomplished with a low-cost micro controller. © IEICE 2012. Source

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