2017•Unpublished venueRequires access

Study of overvoltage and insulation coordination of UHV DC transmission line

Xiaolan Li, Peihong Zhou, Huiwen He, Lei Wang

Abstract

In order to determine the insulation level of DC transmission line, one UHV DC transmission project is taken as an example in this paper. PSCAD program is used to establish the simulation calculation model. Multiple fault points on the fault line are selected. The induced overvoltage amplitude, distribution along the line and the maximum overvoltage envelope of healthy pole transmission line corresponding to the failure point are calculated to determine 2% statistical overvoltage. The influence of DC filter parameters, grounding resistance and grounding position on overvoltage are analyzed. According to the DC filter scheme, the DC line insulation coordination is analyzed, and the air gap of transmission line tower is determined. The calculation results provide the references for the designation and construction of UHV DC transmission projects.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Overvoltage, Transmission line, Electrical engineering, Line (geometry), Ground, Engineering, Electric power transmission, Fault (geology)