DocumentCode :
711514
Title :
Experimental investigation of harmonics in line and neutral currents of 3-phase utility feeding 2-pulse rectifiers
Author :
Arvindan, A.N. ; Praveenkumar, P.
Author_Institution :
EEE Dept., Anna Univ., Chennai, India
fYear :
2013
fDate :
12-14 Dec. 2013
Firstpage :
174
Lastpage :
181
Abstract :
In the commercial sector single-phase, non-linear loads are predominant and their numbers are on the increase. The two-pulse diode bridge rectifier is the most popular single-phase topology deployed for ac-dc conversion of electrical energy; however, when feeding an inductive load, its line current has a total harmonic distortion of around 28%, that is a gross violation of contemporary power quality standards. Another concern is the presence of triplen harmonics including the third, in the line current, that add up in the neutral conductor. This paper reports distortion reduction by elimination of triplen harmonics and mitigation of non-triplen harmonics in the line and neutral currents using a delta-wye transformer between the three-phase utility and the diode bridge rectifiers. The efficacy of the technique is proved by experimental data and power quality measurements.
Keywords :
harmonics suppression; power supply quality; power transformers; rectifying circuits; 3-phase utility feeding 2-pulse rectifiers; delta-wye transformer; diode bridge rectifiers; distortion reduction; line currents; neutral currents; nontriplen harmonics mitigation; power quality measurements; three-phase utility; triplen harmonics elimination; Delta-wye transformer; Power quality; Single-phase rectifier; Total harmonic distortion; Triplen harmonics;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Sustainable Energy and Intelligent Systems (SEISCON 2013), IET Chennai Fourth International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-78561-030-1
Type :
conf
DOI :
10.1049/ic.2013.0311
Filename :
7119698
Link To Document :
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