Calculation of large ion densities under HVDC transmission lines by the finite difference method

Author

Suda, Tomotaka ; Sunaga, Yoshitaka

Author_Institution

Komae Res. Lab., Central Res. Inst. of Electr. Power Ind., Tokyo, Japan

Volume

10

Issue

4

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

1896

Lastpage

1905

Abstract

A calculation method for large ion densities (charged aerosols) under HVDC transmission lines was developed considering both the charging mechanism of aerosols by small ions and the drifting process by wind. Large ion densities calculated by this method agreed well with the ones measured under the Shiobara HVDC test line on the lateral profiles at ground level up to about 70 m downwind from the line. Measured values decreased more quickly than calculated ones farther downwind from the line. Considering the effect of point discharge from ground cover (earth corona) improved the agreement in the farther downwind region

Keywords

HVDC power transmission; aerosols; corona; finite difference methods; ion density; ions; power overhead lines; HVDC transmission lines; Shiobara HVDC test line; charged aerosols; charging mechanism; downwind region; drifting process; earth corona; finite difference method; ground cover; ground level; ion densities; lateral profiles; point discharge; wind; Aerosols; Atmospheric measurements; Corona; Current measurement; Finite difference methods; HVDC transmission; Space charge; Testing; Transmission line measurements; Wind speed;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.473365

Filename

473365