电网技术2017，Vol.41Issue(10)：3201-3208,中插1,9.DOI:10.13335/j.1000-3673.pst.2016.2928
新型电压源换流器直流故障穿越能力综合评价指标
Comprehensive Evaluation Index of DC Fault Ride-Through Capability for Novel Voltage Source Converter
李道洋 1吴金龙 1张浩 1王先为 1马焕 1孙树敏 2李广磊2
作者信息
- 1. 西安许继电力电子技术有限公司,陕西省 西安市 710075
- 2. 国网山东省电力公司 电力科学研究院,山东省 济南市 250002
- 折叠
摘要
Abstract
With development of flexible HVDC technology, a number of flexible DC transmission projects have been built over the world in recent years. However, flexible HVDC projects have to use expensive transmission cables, because modular multilevel converter (MMC) based on traditional half-bridge sub-module cannot suppress DC fault current. Aiming at DC fault ride-through technology, a lot of novel voltage source converters (VSCs) are proposed by domestic and foreign scholars. In order to provide a theoretical basis for designers to quantify new topologies, this paper presents a comprehensive evaluation index for DC fault ride-through capability of the new VSCs. The evaluation index uses fault current suppression time and voltage deviation of sub-module after fault to characterize fast recovery capability of VSCs. Additional investment cost and extra running loss of the converters are considered synthetically. Finally, three application methods of the comprehensive evaluation index are presented, and six different topologies are compared laterally, and validity and universality of the evaluation index are verified.关键词
柔性直流输电/直流故障穿越/综合评价指标Key words
flexible HVDC/DC fault ride-through/comprehensive evaluation index分类
信息技术与安全科学引用本文复制引用
李道洋,吴金龙,张浩,王先为,马焕,孙树敏,李广磊..新型电压源换流器直流故障穿越能力综合评价指标[J].电网技术,2017,41(10):3201-3208,中插1,9.
