Diseño de un acondicionador para la reducción de los armónicos en una micro-red eléctrica utilizando el controlador proporcional integral con corriente interna

Abstract

In this document, a Unified Power Quality Conditioner (UPQC) was designed to reduce voltage harmonic distortion, produced by the presence of non-linear loads. The harmonics were evaluated before and after implementing the compensation in the tested system. Different connection and disconnection times of the UPQC compensator are analyzed, with the purpose of being able to recognize the correct operation, an integral proportional controller (PI) with internal current is implemented, which helps to attenuate the output signal, through the visualization of the corrected voltage signals. The microgrid (MR) used is the IEEE 13-bar system, in which the reduction of harmonics in the 7th bar of the system is studied. With the purpose of developing, simulating and analyzing the results, the MATLAB/Simulink program is used, using as a base the system of 13 unbalanced reference bars. The results obtained are important, since the voltage harmonics decreased from 6.3% to 3%, thus complying with the limits established by the IEEE 1159 standard, which indicates that the maximum percentage of THDv must be 5%.