TY  - JOUR
TT  - An Approach to Reduce the Line Current Harmonics of  18 Pulse Rectifier Under Unbalanced Line Conditions
AU  - Sefa, İbrahim
AU  - Altın, Necmi
PY  - 2007
DA  - September
JF  - Politeknik Dergisi
PB  - Gazi University
WT  - DergiPark
SN  - 2147-9429
SP  - 229
EP  - 234
VL  - 10
IS  - 3
KW  - 18 darbeli doğrultucu
KW  - akım paylaşım bobini
KW  - dengesiz şebeke gerilimi
KW  - doğrultucu harmonikleri
N2  - The most popular method applied to reduce the line current harmonic level is to increase the pulse number of the rectifier in three phase rectifiers which are widely used in industrial applications. If the 18 pulse rectifier is designed properly, it is the minimum pulse number rectifier that is in compatible with the international standards without any additional circuits. On the other hand, unbalanced line voltages and voltage harmonics produce non-characteristic harmonics and increase the total harmonic distortion and then the rectifier operates out of the standards. In this line conditions, interphase transformers used at the outputs of the rectifier are become more important. In this study, a method has been developed to determine the optimum value of IPT in different line conditions. Compatibility of the developed method was tested and compared with MATLAB/Simulink simulations and the experimental results of 30kW rectifier test rig. It has been shown that the harmonic currents produced by the distorted line conditions can be reduced by the IPT inductance chosen properly
UR  - https://dergipark.org.tr/en/pub/politeknik/issue//367169
L1  - https://dergipark.org.tr/en/download/article-file/384645
ER  -