Analysis of Harmonic Current Stability and Summation of LED Lamps

Abstract

Harmonic load currents in distribution networks are to be closely observed, in particular, when connecting high number of non-linear loads and/or other sources to the grid. In order to accurately assess and estimate their impact on the network, it is essential to determine how the harmonic currents behave when various loads are connected to the point of common coupling (PCC). This paper presents an overview and variance of the harmonic currents of LED lamps and the harmonic current summation uncertainty when calculating resulting currents when estimating resulting harmonic currents.