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The Development of System for Measuring Ion Generated from HVDC Overhead Transmission Line  

Ju, Mun-No (한국전기연구원 전력연구단 전기환경연구그룹)
Yang, Kwang-Ho (한국전기연구원 전력연구단 전기환경연구그룹)
Lee, Dong-Il (한전전력연구원 전력계통연구소)
Shin, Koo-Yong (한전전력연구원 전력계통연구소)
Lim, Jae-Seop (한전전력연구원 전력계통연구소)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.57, no.11, 2008 , pp. 2035-2040 More about this Journal
Abstract
The electrical discharge of high voltage direct current(HVDC) overhead transmission line generate audible noise, radio noise, electric field, ion current and induced voltage on the ground. These items are major factors to design environmentally friendly configuration of DC transmission line. Therefore, HVDC transmission lines must be designed to keep all these corona effects within acceptable levels. Several techniques have been used to assess interference caused by ions on HVDC overhead transmission line. In this study, to assess the ion characteristic of DC line, the ion current density and induced voltage caused by ion flow were measured by plate electrodes manufactured from a metal flat board and charged bodies, respectively. The charged body has two types of cylinder and cylindrical plate. From the results of calibration experiments, the sensitivity of flat electrode and charged body can be obtained. At present, the developed system is used to investigate the ion generation characteristics of Kochang DC ${\pm}500kV$ test line.
Keywords
Corona discharge; HVDC transmission line; Ion current density; Electric field; Environment;
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  • Reference
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