| Title |
Assessment and Management Method of Flicker Emission Level Based on IEC 61000-3-7 for Domestic Extra-high Voltage Customers |
| Authors |
한수경(Su-Kyoung Han) ; 신훈철(Hoon-Chul Shin) ; 박상호(Sang-Ho Park) ; 김건중(Kern-Joong Kim) ; 조수환(Soo-Hwan Cho) |
| DOI |
http://doi.org/10.5370/KIEE.2018.67.1.1 |
| Keywords |
Flicker ; IEC 61000-3-7 ; Power quality ; Emission level ; Voltage fluctuation |
| Abstract |
IEC 61000-3-7 provides guidance for limiting flicker and enabling the connection of fluctuating load installations, that is, producing flicker in MV, HV and EHV power systems. In Korea, the flicker have been restricted by Japanese standard of △V10 method. △V10 was developed only for arc furnaces in 1960’s. And now it is revealed that it is not suitable for application to other fluctuating load installations through many researches. Pst which is a flicker index used in IEC 61000-3-7, indicates visual inconvenience due to voltage fluctuation across large range of frequency and can be applied to fluctuating load installations as well as arc furnaces. In this paper, we introduce how to calculate and assess flicker emission level for the individual fluctuating load installations connected in EHV system and how to manage the emission levels in the power system according to IEC 61000-3-7. |