Banco de medidas automático para linealización de amplificadores

This work is focused on building and configuring a measurement test bench for non linear High Power Amplifiers, more precisely those ones based on the Envelope Elimination and Restoration. At first sight the test bench is composed of several arbitrary waveform generators, an oscilloscope, a vector signal generator and a spectrum analyzer all of them controlled remotely. The test bench works automatically, that is why several software control programs have been developed in order to control all this equipment. The control programs have been developed in Matlab/Octave Scripting language and at last chance in a more low level language as C. The signal processing algorithms, taking into account that the time alignment one is the most important, have been developed in Matlab/Octave Scripting too. An improvement of 10dB in the ACPR(Adjacent Channel Power Ratio) has been obtained just by applying the time alignment algorithm developed in this work

Banco de ensayos para el control de calidad de paneles solares fotovoltaicos

El objetivo principal del presente Proyecto Fin de Carrera es el de dotar a la Escuela Universitaria de Ingenieros Técnicos de Telecomunicación – Universidad Politécnica de Madrid (EUITT-UPM) de un banco de medida donde poder caracterizar los módulos fotovoltaicos en condiciones reales de operación. Es necesario comprobar el funcionamiento de los módulos para asegurarse de que está acorde a lo indicado en las especificaciones anunciadas por los fabricantes. A lo largo del texto daremos una introducción al concepto de energía solar fotovoltaica y una descripción de los sistemas tanto aislados como los conectados a la red eléctrica de distribución. Hablaremos sobre el fenómeno fotovoltaico y describiremos los módulos fotovoltaicos para ver las partes de las que está compuesto un módulo. Finalmente nos centraremos en el banco de ensayo y acabaremos explicando el caso práctico realizado en la EUITT. A través de la medida de la curva I-V del módulo fotovoltaico en condiciones reales de operación y la extrapolación de los resultados obtenidos a las Condiciones Estándar de Medida (CEM) comprobaremos lo que se ajustan los valores dados por los fabricantes de los módulos solares. ABSTRACT. The main aim of this project is to provide the EUITT-UPM a measure workbench to characterize photovoltaic (PV) modules in real test conditions (RTC). It is necessary to check the PV modules operations to assure that its characteristics are close to the ones given by the manufacturers. I will introduce the concept of photovoltaic solar energy and describe remote systems as well as network-connected systems. I will talk about the photovoltaic phenomenon and describe the PV modules in order to know the parts making up a module. Finally, I shall describe the measure workbench explaining the practical case carried out at the university. By measuring the I-V curve of PV modules in real test conditions and the later extrapolation of the results to the standard test conditions (STC), manufacturers’ data can be compared to the data obtained within this study.