Institute Investigaciones en Ingenieria Electrica Alfredo Desages

Bahía Blanca, Argentina

Institute Investigaciones en Ingenieria Electrica Alfredo Desages

Bahía Blanca, Argentina
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Busada C.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Busada C.,National University of the South | Gomez Jorge S.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Gomez Jorge S.,National University of the South | And 2 more authors.
2014 IEEE Biennial Congress of Argentina, ARGENCON 2014 | Year: 2014

Power factor correctors with dual-boost topology (PFC-DBs) are very efficient. They have less conduction losses than those using a conventional boost (PFC-BC) topology. In order to control PFC-DBs input voltage and current measurements are usually needed, but measuring these signals is difficult and relatively expensive when the controller is implemented with commercial integrated circuits. This is because the ground is not shared by the input and output circuits. On the contrary, in the PFC-BC topology the ground is shared by the input and output circuits. Then, the voltage and current signals required to perform the control can be measured through resistors connected to the same ground. In PFC-DBs controllers, the measurement circuits are complex and increase the cost of the system. This is an important disadvantage. In order to overcome this drawback, in this paper, a controller with a cheaper and rugged measurement hardware is proposed. The proposed circuit can be used in both topologies (i.e. PFC-DB and PFC-BC). This controller does not require the measurement of the input voltage, and uses the dc bus current instead of the input current. This current can be measured with a simple resistor connected to the ground shared by the input and output circuits. The proposal is promising for its low cost, simplicity and performance. Experimental results obtained in a laboratory prototype are included. © 2014 IEEE.


Fantino R.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Fantino R.,National University of the South | Busada C.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Busada C.,National University of the South | And 2 more authors.
2014 IEEE Biennial Congress of Argentina, ARGENCON 2014 | Year: 2014

A control strategy for a low resonance frequency LCL filter used in the input stage of dc-dc bidirectional boost converters is proposed. The controller consists of a simple PI controller plus a linear filter added in series with the PI integrator term. The modified PI controller achieves the active damping of the LCL filter and allows to arbitrarily place the system closed-loop poles. The proposed strategy only requires the measurement of the source current. This current is the variable to be controlled. © 2014 IEEE.


Figueroa J.L.,National University of the South | Figueroa J.L.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Biagiola S.I.,National University of the South | Biagiola S.I.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | And 6 more authors.
Journal of the Franklin Institute | Year: 2013

In this paper, a robust model predictive control for a Wiener-like system is presented. The proposed system consists of a lineal dynamic block represented by Laguerre or Kautz basis followed by a High Level Piecewise Linear function. The results are evaluated on the basis of a simulation of a distillation column. © 2012 The Franklin Institute.


Fantino R.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Fantino R.,National University of the South | Busada C.,Institute Investigaciones en Ingenieria Electrica Alfredo Desages | Busada C.,National University of the South
2014 IEEE Biennial Congress of Argentina, ARGENCON 2014 | Year: 2014

This paper presents experimental results obtained in an isolated 3KW DC-DC converter prototype suitable for photovoltaic applications. Currents and voltages are computed based on the numerical solution of the nonlinear equations describing the steady state operation of the converter. With this computations the losses and the efficiency of the converter are predicted for each operating point. The theoretical results compared against the experimental measurements confirm that the behavior and the performance of the converter are consistent with those expected. © 2014 IEEE.


De la Barrera P.M.,CONICET | De la Barrera P.M.,National University of Rio Cuarto | Bossio G.R.,CONICET | Bossio G.R.,National University of Rio Cuarto | And 4 more authors.
IET Electric Power Applications | Year: 2010

A new dynamic model for an induction motor (IM) in abc machine variables is proposed in this work. This model is able to represent asymmetrical stator core faults (SCF) by modelling them as the variation of the equivalent core loss resistance per phase. One model in qd0 variables and another one in sequence components are deduced and used as tools to analyse and simulate SCF. It is demonstrated that there is a good correlation between SCF severity and the magnitude of the IM stator negative sequence current, impedance and power. The comparison of simulation and experimental results suggests the validity of the theoretical proposal. © 2010 © The Institution of Engineering and Technology.

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