Differences in the performance between CFL and LED lamps under different voltage distortions

Gil-de-Castro, Aurora; Medina-Gracia, Ricardo; Rönnberg, Sarah; Blanco, Ana María; Meyer, Jan

doi:10.1109/ichqp.2018.8378918

Cited by 30 publications

(31 citation statements)

References 12 publications

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“…Recent work on power quality issues caused by LED lamps, e.g., [1,27], has revealed the diversity in the LF current emissions of LED lamps. These variations are a consequence of the utilization of different LED driver circuits, and previous research has shown that, for the purpose of classification of the LF emissions of the line current waveform, LED lamps can be divided into four main categories [28].…”

Section: Led Lamp Setmentioning

confidence: 99%

“…A vital aspect of ongoing research in this area is the ability to model and simulate the low frequency (LF) current emissions (from DC to 2.5 kHz) of an enormous number of individual devices. Models of LED lamp high frequency (HF) emissions beyond the LF range are not considered in this paper but details of LED lamp HF distortion characteristics are available in [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Approaches for Modeling the Low Frequency Emission of LED Lamps

et al. 2020

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Light emitting diode (LED) lamps are now an established lighting technology, which is becoming prevalent in all load sectors. However, LED lamps are non-linear electrical loads, and their impact on distribution system voltage quality must be evaluated. This paper provides a detailed analysis of time domain and frequency domain approaches for developing and evaluating models suitable for use in large scale steady-state harmonic power flow analysis of the low frequency (LF) emission of LED lamps. The considered approaches are illustrated using four general categories of LED lamps, which have been shown to cover the vast majority of LED lamps currently available on the market. The aim is an in-depth assessment of the ability of commonly applied models to represent the specific design characteristics of different categories of LED lamps. The accuracy of the models is quantitatively evaluated by means of laboratory tests, numerical simulations, and statistical analyses. This provides an example, for each LED lamp category, of comprehensive information about the overall accuracy that can be achieved in the general framework of large scale LF harmonic penetration studies, particularly in the assessment of voltage quality in low voltage networks and their future evolution.

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Section: Led Lamp Setmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Approaches for Modeling the Low Frequency Emission of LED Lamps

et al. 2020

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“…The Total Supraharmonic Current (TSHC) index was proposed by Grevener in [8], [12] for quantifying the supraharmonic emission over a frequency range. This index is based on Parseval's theorem [13] and has been used in other publications for analysis of supraharmonic distortion [2]. The TSHC is defined as follows:…”

Section: Calculating the Tshcmentioning

confidence: 99%

“…It has been shown in the literature that lighting emitting diode (LED) lamps emit more or less distortion in the supraharmonic range depending on their drivers' topology [2], [3], [7]. The characteristics of the supraharmonic emission from LED lamps have been presented in previous works: in [7], the grouping of frequency components over the whole supraharmonic range is used to quantify the distortion; in [6], the highest component over a frequency range is used.…”

Section: Introductionmentioning

confidence: 99%

Uncertainties in the Quantification of Supraharmonic Emission: Variations over Time

Espín-Delgado¹,

Rönnberg²,

Bollen³

2020

REPQJ

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This paper shows a study of the variations of the supraharmonic distortion emitted by an LED lamp during and after its thermal stabilization. The study is aimed to contribute to map the uncertainties existing when quantifying supraharmonics. Measurements of the current drawn by five lamps of the same type and manufacturer are performed. Then, analysis in the frequency domain is performed and the Total Supraharmonic Current (TSHC) index is used to quantify the supraharmonic emission of the lamps. The TSHC is calculated over bands of different widths, whose outcomes are then compared to decide which bandwidth results in a less time-varying-TSHC index. It is demonstrated that the supraharmonic distortion emitted by the lamp under study experiences both an increase in magnitude and a shift in frequency during the thermal stabilization of the lamp. It is also shown how the frequency grouping impacts the quantification. It is concluded that the best choice of a grouping bandwidth is one wide enough so that it includes the whole emission band of interest. This result is a step forward to set up references for the analysis and quantification of broadband supraharmonic emission.

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“…The shape of the current waveform withdrawn by an energysaving lamp depends on the type of power factor correction applied [5]. It is also sensitive to the impedance of the supply system, the voltage total harmonic distortion and to the type of other loads connected onto the same network [6].…”

Section: B Conducted Electromagnetic Interference Of Household Loadsmentioning

confidence: 99%

Sensitivity of static energy meter reading errors to changes in non-sinusoidal load conditions

Marais¹,

Brom²,

Rietveld³

et al. 2019

2019 International Symposium on Electromagnetic Compatibility - EMC EUROPE

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Previous studies regarding static energy meter errors under non-sinusoidal load conditions have shown that these meters can produce erroneous readings. This paper describes an investigation done using loads consisting of a commercial lighting dimmer in combination with either a resistive heater or an array of various energy-saving lamps. Dimmer impedance and phase firing angle were gradually adjusted to change load conditions. Several meters showed dramatic variations in metering error under different load conditions. In the most extreme case, metering errors ranged from five times the energy consumed by the load to registering almost no energy. Though perhaps not typically found in households, the load combinations used in this study were able to highlight sensitivities of different static energy meters to changes in load conditions.

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Differences in the performance between CFL and LED lamps under different voltage distortions

Cited by 30 publications

References 12 publications

Analysis of Approaches for Modeling the Low Frequency Emission of LED Lamps

Analysis of Approaches for Modeling the Low Frequency Emission of LED Lamps

Uncertainties in the Quantification of Supraharmonic Emission: Variations over Time

Sensitivity of static energy meter reading errors to changes in non-sinusoidal load conditions

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