Análisis armónico en la red de dsitribución eléctrica para determinar los efectos causados por lámparas HID usando transformada de Wavelet y Hilbert Huang

Abstract

In the present investigation, the harmonic study of a high intensity discharge (HID) luminaire circuit is described by calculating the Wavelet Transform and the Hilbert Huang Transform to determine its incidence on the harmonics of the network. It is considered that traditionally HID type luminaires are usually studied as resistive loads however they are non-linear in nature. Wavelet analysis is based on the decomposition of the current wave into detail and approximation coefficients in order to obtain a spectrum of 32 harmonics. In the analysis of Hilbert Huang, the original signal of the network is decomposed into decomposition functions in intrinsic mode with its respective instantaneous frequency and the moment of variation of each harmonic. The study is applied to the data obtained from a network analyzer installed in a lighting section of the living route of the city of Quito. The harmonics obtained from the application of the transformed ones are compared with the values established in the IEEE 519 standard, to determine if the harmonics present are within the acceptable limits to meet the energy quality requirements.