Control predictivo basado en modelo: aplicado a sistemas de generación de energía renovable

Diseñar e implementar experimentalmente nuevas estrategias de control digital aplicados a convertidores de potencia para aplicaciones en sistemas de generación desde fuentes de energía renovables.CONACYT - Consejo Nacional de Ciencia y TecnologíaPROCIENCI

An indirect model predictive current control for a direct matrix converter with instantaneous reactive power minimization

Controlling both input and output sides of the direct matrix converter using predictive control implies high computational cost due to the fact that it has twenty-seven available switching states and the needed of weighting factors. In this paper, an indirect model predictive current control strategy is proposed in order to simplify the computational cost while avoiding the use of weighting factors. The method is based on the fictitious dc-link concept, which has been used in the past for the classical modulation and control techniques of the direct matrix converter. Simulated results confirm the feasibility of the proposal proving that it is an feasible alternative to classical predictive control strategies in this converter.CONACYT – Consejo Nacional de Ciencia y Tecnologí

De la Leña a las energías renovables: aplicaciones de la Electrónica de Potencia

Proyectos desarrollados por la FIUNA: Principales Proyectos, principales Aportes y proyecciones.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Research in power electronics and control

Fault-tolerance is one of the most interesting feature of wind energy conversion systems (WECS). The ability to maintain operation even after an open-phase fault, allows for the system operators to maintain energy production, providing tangible economic benefits.CONACYT – Consejo Nacional de Ciencia y Tecnologí

Indirect predictive control techniques for a matrix converter operating at fixed switching frequency

The following paper presents a novel indirect model predictive control strategy for a direct matrix converter (DMC). The direct matrix converter has a large number of available switching states and therefore the implementation of predictive control techniques require high computational resources. In addition, the simultaneous selection of weighting factors for the control of input and output variables of the converter complicates the system tuning. In this paper, two indirect model predictive control strategies are proposed in order to reduce the computational cost and by doing so avoid the use of weighting factors. The proposal is enhanced with a fixed switching frequency strategy in order to improve the performance of the full system. Results confirm the feasibility of the proposal by demonstrating that it is an alternative to classical predictive control strategies for the direct matrix converter.CONACYT – Consejo Nacional de Ciencia y Tecnologí

Predictive voltage control techniques for AC UPS applications

El objetivo del control de tensión en los sistemas de energía eléctrica es mejorar la capacidad del sistema para resistir las posibles contingencias en los sistemas de transmisión y generación, variaciones en la carga o cualquier otra condición indeseada, de tal manera que las tensiones proveídas al usuario se mantengan dentro de los limites deseados.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

A novel predictive-fixed switching frequency technique for a cascade H-bridge multilevel STATCOM

There are several control techniques for active power filter applications. This paper presents a new alternative of predictive current control for a cascade H-bridge multilevel converter, where the optimal vector selected by the predictive controller is used for a modulation stage to obtain a fixed switching frequency. Simulation results validate the proposal where almost similar results can be obtained in comparison with the traditional methods.CONACYT – Consejo Nacional de Ciencia y Tecnologí

Predictive power control strategy for a Grid-Connected 2L-VSI with fixed switching frequency

In the recent years, model predictive control has been consolidated as a design strategy and an attractive alternative for the control of power electronic devices. This paper proposes an active and reactive power control strategy based on predictive control approach applied to grid-connected renewable energy systems. To accomplish this, a three-phase two-level voltage source inverter based topology is used in combination with a simple and efficient fixed-frequency modulation technique. Results based on a MATLAB/Simulink simulation environment are discussed and the most relevant characteristics of the proposed fixed-frequency predictive control approach are highlighted considering the total harmonic distortion as a figure of merit.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Design and implementation of a modular bidirectional switch using SiC-MOSFET for power converter applications

Tis paper presents a novel modular design of a Bi-Sw with the purpose of providing to beginner researchers the key issues to design a power converter. Te Bi-Sw has been designed in modular form using the SiC-MOSFET device. Te Bi-Sw uses the advantages of SiC-MOSFET to operate at high switching frequencies. Te verifcation of the module is carried out experimentally by means of the implementation in a voltage regulating converter, where performance analysis, power losses, and temperature dissipation are performed.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI