Implications for Distribution Networks of High Penetration of Compact Fluorescent Lamps

Watson, N.R.; Scott, Tayla; Hirsch, S.R.

doi:10.1109/tpwrd.2009.2014036

Cited by 141 publications

(77 citation statements)

References 7 publications

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“…Among them, CFLs are popular and widely used. CFLs are nonlinear, and they create harmonics that highly distort the current wave shape [3][4][5][6][7][8][9][10]. They cause problems if present in large amounts in the operation of sensitive electric power systems.…”

Section: Introductionmentioning

confidence: 99%

“…The tolerable IEEE harmonic limits for nonlinear loads may be exceeded when the amount of CFLs in the system increases. Therefore, Watson et al [8] recommended CFLs (with embedded harmonics filter) with a "Star Rating" for use. In the related field of LED lamps, several studies have been conducted to investigate the harmonic characteristics of LED lamps [1,2,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Impact of large-scale installation of LED lamps in a distribution system

Uddin¹,

Sharef²,

Krause³

et al. 2015

Turk J Elec Eng & Comp Sci

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Abstract:The aim of this paper was to examine the utilization of a large number of nonlinear light emitting diode (LED) lamps in a distribution system and its impact on system power quality. Initially, harmonic and others electrical characteristics were identified by carrying out an experiment on four types of LED lamps available on the local market.On the basis of the identified characteristics, a new LED lamp model was developed in MATLAB Simulink. This model is called the time-dependent current source model and gives more accurate results than the fixed current source model. Then this model was applied to a distribution network together other linear and nonlinear loads, namely incandescentlighting, computer loads, and compact fluorescent lamps (CFLs). The simulated results show that the harmonic voltage distortion can exceed the 8% IEC standard limit when 80% incandescent lamps in a distribution power network are replaced with LED lamps. Furthermore, the simulation results show that the active power loss can drastically increase across distribution transformers due to the presence large numbers of LED lamps.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of large-scale installation of LED lamps in a distribution system

Uddin¹,

Sharef²,

Krause³

et al. 2015

Turk J Elec Eng & Comp Sci

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“…Although they are small-power single-phase loads (< 25 W), they can be an important source of harmonics because a large number of them can be connected to the same bus, causing problems in installations and affecting voltage waveform quality [1], [2]. One of these problems is the harmonic current flow in the neutral conductor [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…This can increase the rms value of the neutral conductor current. Studies on this harmonic problem require CFL models to calculate the harmonic currents injected into the installation [1], [6]- [9].…”

Section: Introductionmentioning

confidence: 99%

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Neutral conductor current in three-phase networks with compact fluorescent lamps

Cunill¹,

Sainz²,

Mesas³

2013

Electric Power Systems Research

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In this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL "black-box" model proposed in the literature. These expressions allow studying and performing a sensitivity analysis of the impact of CFLs on neutral current. AbstractIn this paper, expressions of the neutral conductor current in three-phase networks with compact fluorescent lamps (CFLs) are obtained from a CFL "black-box" model proposed in the literature. These expressions allow studying and performing a sensitivity analysis of the impact of CFLs on neutral current.The influence of CFL model parameters, as well as supply voltage unbalance, number of CFLs per phase and different types of CFLs per phase, on the neutral current is also investigated. The obtained results are validated with measurements and PSCAD/EMTDC simulations.

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Harmonic phase angles for a domestic customer with different types of lighting

Gil-de-Castro

Rönnberg

Bollen

et al. 2014

Int. Trans. Electr. Energ. Syst.

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Summary This paper presents measurements of the changes in phase angle of the harmonic current for a domestic costumer due to the introduction of energy‐efficient lamps (compact fluorescent lamps and light‐emitting diodes lamps). Those results are then compared with the aggregation rules according to standard IEC 61000‐3‐6 and with a mathematical model, in order to highlight the importance of using phase angles in the harmonic estimations. The paper presents both the emission from individual household devices and the variations in the complex harmonic current from a group of devices. Cancellation because of phase‐angle difference plays an important role in the emission from a group of different devices. This explains why the increase in emission after changing to energy‐efficient lamps is much smaller than expected. Some other power‐quality parameters are also considered such as total harmonic distortion, total power factor, and displacement power factor. It is concluded that the complex plane presentation is a useful tool to estimate the harmonic emission from a group of domestic appliances. Copyright © 2014 John Wiley & Sons, Ltd.

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Implications for Distribution Networks of High Penetration of Compact Fluorescent Lamps

Cited by 141 publications

References 7 publications

Impact of large-scale installation of LED lamps in a distribution system

Impact of large-scale installation of LED lamps in a distribution system

Neutral conductor current in three-phase networks with compact fluorescent lamps

Harmonic phase angles for a domestic customer with different types of lighting

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