Diseño e implementación de un módulo de electrónica de potencia para el control y monitoreo de una señal de voltaje utilizando la tarjeta de control NI myRIO.

Abstract

The objective of the research work was to describe how to implement an Electronic Power module for the control and monitor the AC and DC voltage signals using the NI myRIO control card, for which it developed 5 control techniques AC -AC which are: direct phase control converter, reverse phase control converter, symmetric phase control converter, AC chopper converter with integral cycle control and also a DC-DC converter reducer of pulse width modulation control was implemented. The methodology used for the development of the system has a sequential linear approach that begins with the analysis and continues with the design, coding and testing. A circuit was designed for AC-AC converters whose main power element is a metal-oxide-semiconductor field effect transistor known as MOSFET, in addition to controlling the switching on and off the MOSFET in AC-AC converters, designed and built a zero-crossing detection circuit for the detection of the start of each half cycle of the sine wave, while the DC-DC converter is based on the integrated L298N. The control programming and interfaces were developed in virtual instruments (VIs) of the labVIEW software, the program interface allows the user to define the input parameters for each converter and visualize the output wave, all this within navigation menus. The RMS voltage values obtained by measurement and calculation were compared, where relative errors less than four percent were obtained in the AC-AC converters and for the DC-DC converter the DC voltage value obtained in relation to the measured value, obtaining a relative error of less than three percent.