LED lamp modelling for harmonic studies in distribution systems

Energy saving policies have boosted the use of light emitting diode (LED) lamps in distribution networks. These lamps are non‐linear loads which inject harmonic currents into the distribution system, which has led to a decrease in the system power quality. Study of the modelling of these lamps would allow the prediction of harmonic emissions into distribution systems. This study presents a frequency‐domain LED lamp model for harmonic emission calculation, together with a simple estimation procedure for model parameter determination from experimental measurements. Both were validated by laboratory tests. Finally, an application illustrates the effect of widespread use of LED lamps in a typical distribution system and allows LED lamp models to be compared.

• LED lamps
• harmonic emission
• distribution systems
• power quality
• nonlinear loads
• frequency-domain modeling
• model parameter estimation
• harmonic current injection
• energy conservation

• 9 — Industrie, innovation et infrastructure

• Power Quality and Harmonics
• Advanced Electrical Measurement Techniques
• Power Systems and Technologies
• LED lamps
• harmonic emission
• distribution systems
• power quality
• nonlinear loads
• frequency-domain modeling
• model parameter estimation
• harmonic current injection
• Electrical and Electronic Engineering
• Engineering