HVDC Converter Transformer Saturation in Hybrid AC/DC System Caused by Coupled Transmission Lines

被引：0

作者：

Zhang, Shuoting ^{[1
]}

Li, Yalong ^{[1
]}

Liu, Bo ^{[1
]}

Shi, Xiaojie ^{[1
]}

Tolbert, Leon M. ^{[1
]}

Wang, Fred ^{[1
]}

机构：

[1] Univ Tennessee, Dept Elect Engn & Comp Sci, Ctr Ultrawide Area Resilient Elect Energy Transmi, Knoxville, TN 37996 USA

来源：

2017 THIRTY SECOND ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2017年

基金：

美国国家科学基金会;

关键词：

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Hybrid ac/dc transmission can increase the power transfer capability of long ac transmission lines. High voltage dc (HVDC) converters are needed, and the line-commutated converter (LCC) is used considering the dc fault current controllability. However, zero-sequence current can be generated due to the coupled transmission lines, and it will flow into the HVDC converters as a fundamental frequency current component on dc side (i(60)). The LCC will convert i(60) to dc current components on the ac side, which may cause potential converter transformer saturation. This paper analyzes the influence of coupled transmission lines on i(60) and the converter transformer saturation and proposes two possible solutions to avoid converter transformer saturation. The simulationresults verify the effectiveness of the proposed methods.

引用

页码：411 / 415

页数：5

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