Abstract
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.
Highlights
The world is facing significant energy challenges due to the rapid increase in energy demand stemming from the constantly growing world economy and population
Despite some advantages of light emitting diode (LED) lamps, many power quality issues resulting from the switching devices inside LED drivers must be taken into consideration, so this paper proposes an analysis of power quality from LED lamps in terms of generated harmonics in the lighting system
The results showed that the fluorescent lamp, compact fluorescent lamps (CFLs), and LED are the source of harmonics, with CFLs and LEDs being the major sources
Summary
The world is facing significant energy challenges due to the rapid increase in energy demand stemming from the constantly growing world economy and population. By considering the EMC for the lighting system, generally, the standard for lighting equipment is International Electrotechnical Commission (IEC) 61000-3-2:2018 which is the standard for harmonic current emissions limits (equipment with a rated input current ≤16 A). Despite some advantages of LED lamps, many power quality issues resulting from the switching devices inside LED drivers must be taken into consideration, so this paper proposes an analysis of power quality from LED lamps in terms of generated harmonics in the lighting system. The obtained results from this research can be applied to buildings that are considering the replacement of conventional luminaires by LED luminaires, or newer buildings that are taking energy savings into account
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
