Plenary Lecture

Line Voltages THD Optimization on a Multilevel Inverter for PV Systems

Professor Aldo Pardo Garcia
Electrical and Mechatronic Department
University of Pamplona

Abstract: Currently there is a pronounced interest at generating high quality electricity, through alternative energy sources. In this context solar energy has been widely accepted because of its many advantages as a source of renewable energy and has presented a continuous growth in recent years, settling large number of photovoltaic systems around the world.
This conference presents the optimization of total harmonic distortion (THD) applied directly to the line voltages output from a multilevel power inverter, with H-bridges cascaded common source of nine steps per phase applied to a photovoltaic system. The mathematical model of the THD of line voltages is presented in terms of commutation angles of the PWM phase modulation following the IEEE-519 standard. This equation gives a new and purely numerical optimization character, allowing to obtain excellent results using genetic algorithms reaching a THD of 0.3% in line voltages. To validate the results obtained by mathematical modeling and optimization, an algorithm using the FPGA Virtex5 XUPV5-LX110T was implemented.

Brief Biography of the Speaker: Prof. Pardo Garcia Aldo is a full Professor in Electrical and Mechatronic Department, University of Pamplona. He is an Electrical Engineer, graduated in Belarusian State Agrarian Technical University 1983, (MSc 1983, Esp. 1982) and graduated PhD in Belarusian National Technical University 1990.
Postdoctoral research at CINVESTAV Guadalajara, Mexico (2007/2 – 2007/4), Postdoctoral research at Florida International University, USA (2007/9 – 2009/3). Over 25 years of experience of teaching and research in Universities - of Camaguey, (Cuba, 12 years), of Byelorussia (Minsk, Byelorussia, 3 years) and Pamplona, Norte de Santander, Colombia (18 years and currently).
For 7 years was the head of the research in The Institute for Research and Applied Technology Development (IIDTA 2000 - 2007), University of Pamplona, Colombia, dedicated to create innovative products and researches processes for university and Industry. Dean of the Faculty of Engineering (2010 to 2013). Lector plenary in Universities of Mexico, of Venezuela, of Spain, of Byelorussia, of Colombia, of Cuba, of Puerto Rico, of United State of America, of Portugal and of Rumania. The results in the last 5 years: Articles published (54), Projects research (4), Softwares with copyright (5), Books published (5), and Participation as an opponent for Masters (10) and PhD thesis (3).

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