Harmonics and resonances in the low voltage grid caused by compact fluorescent lamps

Abstract

The effects of a widespread use of Compact Fluorescent Lamps (CFLs) on harmonics in the low voltage grid are analyzed. Therefore, measurements of the harmonic characteristics of nine different brands of CFLs are done. Based on these measurement results, a simulation model is developed, which enables to study the interaction of multiple CFLs. Thereby, the harmonic content of both currents and voltages are considered. Additionally, the impact of the capacitive behavior of CFLs on resonances phenomena is investigated and its consequences for the harmonic spectrum are represented.

Impact of flat-top voltage waveform distortion on harmonic current emission and summation of electronic household appliances

“…Most of the studies which analyze the impact of the different topologies on the power quality are based on simulations which use an ideal current source to represent these loads (e.g. [1][2]). The parameters of the current source (magnitude and phase angle of the harmonic currents) are usually obtained from measurements of the respective devices based on the specifications of international standards, such as IEC 61000-3-2 [3].…”

Analysis of the Real Energy Consumption of Energy Saving Lamps

“…As early as 1995, Dwyer et al [8] evaluated the impact of the harmonics generated by the CFL in distribution systems, concluding that under certain conditions they generate large distortions in voltages, even after taking into account these distortions can be partially canceled when several lamps are used. Koch et al [9] conducted a simulation to evaluate the effect of the use of CFLs on the voltages and currents of the network, evaluating both the harmonics generated and the resonance conditions. On the other hand, Gil-de-Castro et al [10] analyzed the light intensity variation and the harmonic emission of LED lamps, finding that there was a relationship between the level of harmonics generated and the sensitivity of the lamps to voltage fluctuations.…”

Extended coupled Norton model of modern power‐electronic devices for large‐scale harmonic studies in distribution networks

“…Commonly used simulation software usually provides for the modelling of the harmonic emission of devices only simple constant current or constant voltage sources, which can be extended in some software packages to pseudo‐controlled sources. This is usually implemented by user‐specific additional software, which updates the current source values in each iteration step depending on the existing voltage distortion [2]. These kinds of simulation models do not represent an actual impedance.…”

“…In [5], for instance, it is shown how capacitor banks for power factor correction influence the frequency and the damping of the first parallel resonance. A similar study has been carried out to analyse the effect of an increasing number of compact fluorescent lamps (CFLs) [2]. In [6], the households have been identified as the major impact factor concerning the first resonance in an urban residential network.…”