TY - GEN
T1 - An analysis of harmonics from LED lamps
AU - Uddin, Sohel
AU - Shareef, Hussain
AU - Mohamed, Azah
AU - Hannan, M. A.
PY - 2012
Y1 - 2012
N2 - Light Emitting Diodes (LEDs) are versatile, energy efficient when compared to the conventional light sources. LEDs represent a transformational change in how light is produced. However, there are significant differences between conventional lighting sources and LEDs in terms of voltage and current operating requirements which may affect the power quality (PQ) of AC mains supplying the LED bulbs. Therefore, this paper investigates harmonic generations from LED bulbs available in the market. It is done by conducting laboratory tests on various LED lamps and tapping the load current behaviour under different conditions. Then frequency domain analysis is performed to investigate the generated harmonics. Harmonic levels of different wattage, various branded LED bulbs are experimentally evaluated and compared. The results show that most of the LED lamps produce high level of harmonics with reference to the IEC 61000-3-2 standard.
AB - Light Emitting Diodes (LEDs) are versatile, energy efficient when compared to the conventional light sources. LEDs represent a transformational change in how light is produced. However, there are significant differences between conventional lighting sources and LEDs in terms of voltage and current operating requirements which may affect the power quality (PQ) of AC mains supplying the LED bulbs. Therefore, this paper investigates harmonic generations from LED bulbs available in the market. It is done by conducting laboratory tests on various LED lamps and tapping the load current behaviour under different conditions. Then frequency domain analysis is performed to investigate the generated harmonics. Harmonic levels of different wattage, various branded LED bulbs are experimentally evaluated and compared. The results show that most of the LED lamps produce high level of harmonics with reference to the IEC 61000-3-2 standard.
KW - Light Emitting Diodes (LEDs)
KW - Power Quality
KW - Total Harmonic Distortion (THD)
UR - http://www.scopus.com/inward/record.url?scp=84864848292&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864848292&partnerID=8YFLogxK
U2 - 10.1109/APEMC.2012.6238014
DO - 10.1109/APEMC.2012.6238014
M3 - Conference contribution
AN - SCOPUS:84864848292
SN - 9781457715587
T3 - cccc2012 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2012 - Proceedings
SP - 837
EP - 840
BT - 2012 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2012 - Proceedings
T2 - 2012 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2012
Y2 - 21 May 2012 through 24 May 2012
ER -