电测与仪表Issue(5)：120-124,5.
基于HHT的高压直流输电线路暂态电压保护
HVDC Transmission Line Voltage Protection Based on HHT
兰华 1李成哲 1王韵然 2李晋 3檀亚凤4
作者信息
- 1. 东北电力大学电气工程学院，吉林吉林132012
- 2. 中国石油长城钻探工程有限公司，北京100020
- 3. 浙江省电力公司培训中心湖州分中心，浙江湖州313000
- 4. 南宁市供电局，南宁530000
- 折叠
摘要
Abstract
Combining the intrinsic filtering characteristics of smoothing reactors and DC filters with Hilbert-Huang transform signal frequency analysis characteristics, this paper uses electromagnetism emulator PSCAD/EMTDC to build a HVDC model and simulate faults inside or outside DC line, and analyzes the transient voltage signals in the various faults of the HVDC transmission line. And then the paper also puts forward a scheme of HVDC transmission line voltage protection based on Hilbert-Huang transform. when different faults occur on the DC lines, its frequency and energy of transient voltage have obvious characters with the analysis of calculation, According to these characters, a criterion of HVDC transmission line voltage protection has been formed to make up for the shortcomings of ground fault with high resistance which can not be accurately judged ground fault.关键词
高压直流输电/输电线路/HHT/边界元Key words
HVDC/transmission line/HHT/boundary element分类
信息技术与安全科学引用本文复制引用
兰华,李成哲,王韵然,李晋,檀亚凤..基于HHT的高压直流输电线路暂态电压保护[J].电测与仪表,2013,(5):120-124,5.
