Reducción de armónicos creados por corrientes no sinusoidales debido a la presencia de cargas no lineales, mediante transformadores con conexión en zigzag en el sistema de distribución residencial

Abstract

The technological evolution in electronic equipment has grown considerably in the residential sector, so it’s inclusion will grow over the years. The non-linear consumption of the components with which they are designed, have a negative impact on the distribution system, causing damage to equipment, especially in the transformer that feeds these loads, reducing their useful life, in addition to a poor quality of power supply. With this background, the specific objective of this research is focused on reducing the harmonics originated by this type of loads. To achieve this, the method applied will be through the zigzag connection, which is performed in the IEEE 13-bus system, comparing the connections between the windings of the transformer in Yy and Yz, by means of simulation in DigSILENT. Through this, an analysis based on obtaining the harmonic spectrum HDi and THDi, as well as through data tabulation, can be performed. In this way, the most effective connection to reduce the third harmonic, and therefore it’s zero sequence components, will be found.