Development and Application of High-Frequency Sensor for Corona Current Measurement under Ultra High-Voltage Direct-Current Environment

Author

Yuan, Haiwen ; Yang, Qinghua ; Liu, Yuanqing ; Lu, Jiayu ; Akhtar, Siddiqui Aamir

Author_Institution

Sch. of Autom. Sci. & Electr. Eng., Beihang Univ., Beijing, China

Volume

61

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

1064

Lastpage

1071

Abstract

Corona current measurement is essential for research into corona discharge under ultra high-voltage direct-current (HVDC) environment. The sensor is extremely important due to the small (microampere) amplitude of the corona current and the wide (dc to tens of megahertz) range in frequency. In this paper, a high-frequency sensor is described, and its application is introduced for accurate measurement of corona current under HVDC environment. Based on the finite-element method and the charge simulation method, the structure of the sensor is determined considering a ±1200-kV environment. The sensor is immune to the effects from the external environments such as vibration and temperature changes. Results indicate that the sensor is feasible for corona current measurement.

Keywords

HVDC power transmission; corona; electric current measurement; electric sensing devices; finite element analysis; power system measurement; HVDC environment; charge simulation method; corona current measurement; finite-element method; high-frequency sensor; ultra high-voltage direct-current environment; voltage -1200 kV; voltage 1200 kV; Capacitance; Corona; Current measurement; HVDC transmission; Impedance; Resistance; Transmission line measurements; Corona current; electric field; finite-element method (FEM); high-frequency sensor; high-voltage direct-current (HVDC);

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2011.2179337

Filename

6138309