An analysis of harmonics from dimmable LED lamps

Uddin, Sohel; Shareef, Hussain; Mohamed, Azah; Hannan, M. A.

doi:10.1109/peoco.2012.6230857

Cited by 29 publications

(11 citation statements)

References 10 publications

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“…As a result, a decrease in the power quality of power distribution as a large number of LED lamps are usually connected to the same bus, resulting in high current harmonic distortion fed into the power system. For this reason, the power quality resulting from using LED lamps in power distribution systems needs to be studied and analyzed [38][39][40][41][42][43][44][45]. In Molina et al's work [38], a frequency-domain low-watt LED lamp model for current harmonic distortion calculation, which is applied for large-scale harmonic penetration, is discussed.…”

Section: Literature Reviewmentioning

confidence: 99%

Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps

2018

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This paper proposes the study and analysis of harmonics, energy consumption and power quality of light emitting diode (LED) lamps equipped in building lighting systems. LED lamps with external (LED MR16) and internal (LED light bulb) drivers are investigated using an experimental setup to compare the results. The power quality of both LED lamps is studied by using a power quality meter to measure the generated harmonic currents from various case studies. The case study is divided into four major cases: one LED lamp is turned on with one driver, two LED lamps are turned on using the two drivers, eight LED lamps are turned on with one driver, and eight LED lamps are turned on with the eight drivers. As harmonics are related to total power factor (PF), which affects the energy savings of the building, hence, a filtering circuit to reduce harmonic current has been designed and implemented to improve power quality and/or power factor of the system. The different cases of harmonic filter insertion at the input of an LED lamp’s driver are discussed and then compared with a lighting standard to show the effectiveness of the passive filtering technique used in the studied system. In addition, the obtained result can be applied to both newly built and retrofitted buildings that aim to use LED technology to increase energy efficiency and decrease energy costs, and could be a helpful guide for end-users and manufacturers in addressing and developing LED issues.

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Section: Literature Reviewmentioning

confidence: 99%

Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps

2018

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“…In buildings, lighting systems account for a large part of the world's total energy consumption. According to [5], it accounts for roughly 20% of the electricity consumption. Therefore, it is important to develop new strategies to reduce the demand for energy used for lighting while simultaneously maintaining the illumination comfort of buildings occupants.…”

Section: Introductionmentioning

confidence: 99%

Building Energy Utilization with LED Lighting and Occupant Sensing System

Mortadhal,

Abdullah,

Parvin

et al. 2019

IJEAT

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Building Energy management systems (BEMSs) are needed to monitor and regulate energy consumption in buildings, thus, contribute in reducing the environmental challenges facing our planet. A new energy saving method based on BEMS is proposed in this paper. The proposed method is a smart LED lighting system based on an Arduino microcontroller, a simple motion sensor, and a camera. A complete design and implementation of the smart lighting system is presented in the paper. In addition, the proposed smart system is validated in the paper under various experimental conditions. The results show that simple installation of commercially available motion sensors and cameras can contribute significantly to reduce the electricity bill and CO2 emission.

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“…Variation in the brightness of LEDs is known as dimming. Dimming control is used to adjust lighting levels for human needs as well as reduction of electricity demand and visual comfort [3].…”

Section: Introductionmentioning

confidence: 99%

“…The deviation of waveform from perfect sinusoidal is usually expressed in terms of harmonic distortion of the current and voltage waveforms [3]. Similar to any other appliance, LED lamps also must comply with several directives which are applicable to the product.…”

Section: Introductionmentioning

confidence: 99%

The study of harmonics from dimmable LED lamps, using CompactRIO

Rata

Rață

2016

2016 International Conference on Development and Application Systems (DAS)

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LED lamps have many advantages in comparison with incandescent lamps, halogen lamps and compact fluorescent light lamps. Although produce harmonic pollution due to the drivers used for their power supply, they are becoming increasingly used nowadays. This paper presents a study of the harmonics from dimmable LED lamps, using reconfigurable CompactRIO system. Various available dimmable LEDs were tested. With CompactRIO, we can rapidly build an embedded control and acquisition system that can analyses the harmonics from dimmable LED lamps.

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An analysis of harmonics from dimmable LED lamps

Cited by 29 publications

References 10 publications

Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps

Harmonics and Reduction of Energy Consumption in Lighting Systems by Using LED Lamps

Building Energy Utilization with LED Lighting and Occupant Sensing System

The study of harmonics from dimmable LED lamps, using CompactRIO

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