Convertidor Trifásico Bidireccional y Bifuncional Usando Control FSC-MPC para Sistemas Híbridos de Generación Distribuida

Abstract

The development of a three-phase electronic power converter is presented, the converter uses IGBTs as electronic power devices, it can act bi-functionally as a threephase full-wave rectifier or as a three-phase three-arm inverter, using the same three-phase power bridge For the conversion, the control design is carried out using the FCS-MPC technique (Finite Commutations Set-Model Predictive Control). The quality of the electrical energy conversion is evaluated, evaluating the average and effective parameters of the voltages and currents, with various types of loads. As well as distortion with the THD coefficient, frequency and phase. The converter seeks to be very flexible and somewhat universal for the conversion of AC-DC and DC-AC energy, for diverse applications in the field of distributed power generation systems, particularly with the presence of renewable energy sources. Modeling and testing have been done with MATLAB, SIMULINK. The loads have also been modeled for typical applications with real characteristics, so in the case of rectifier the test load has been considered a lithium ion battery, then with a 5HP, 240 v and 1750 rpm DC motor, to later test with a general load of RL characteristics. For the inverter, it is tested with a balanced three-phase RL load and then with a three-phase squirrel cage-type asynchronous motor. The results are presented by means of graphs and tables for a better understanding of said results obtained in the simulations. The functionality and operation of the developed converter is explained by means of block diagrams that incorporate the units that make up the converter including the control units, the command unit, the operation selection switch unit, as well as the power unit. The results obtained show good functional characteristics of the converter in its two modes of operation, reflected in the parameters measured in the simulation tests.

Diseño de microred aislada usando energías renovables híbridas con convertidor electrónico multidireccional y multipuertos para alimentar centros de salud alejados

“…Para utilizar la energía generada y almacenada se diseña un inversor trifásico (representado en la figura 8), el algoritmo de control usado es el control predictivo basado en modelos, en la modalidad de conjunto finito de conmutaciones (MPC-FCS), este control es similar al artículo de J. Tisza [13]. El sistema de control calcula las predicciones del modelo a partir de la función predictiva y las mediciones actuales.…”