南方电网技术2017，Vol.11Issue(3)：18-24,7.DOI:10.13648/j.cnki.issn1674-0629.2017.03.004
广东多直流输电换相失败对电网稳定运行的影响
Influence of Simultaneous Commutation Failure of Guangdong Multiple HVDC on Power System Secure Operation
周保荣 1洪潮 1饶宏 1赵勇1
作者信息
- 1. 直流输电技术国家重点实验室(南方电网科学研究院),广州510663
- 折叠
摘要
Abstract
This paper investigates the dynamic characteristics of active power and reactive power during HVDC commutation failure period.The quantitative index for assessing voltage supporting capability of AC system for HVDC system is introduced.The influence of simultaneous commutation failures of Guangdong multiple HVDC on the secure operation of the power grid is analyzed from three aspects: AC area where AC fault may cause multiple HVDC simultaneous commutation failure;multi-infeed effective short circuit ratios and the number of power grid instability under severe AC system failure conditions.Technical countermeasures including HVDC control strategy optimizing, dynamic reactive power compensation installation, AC power grid topology reconfiguration and VSC HVDC utilization are proposed for dealing with voltage instability risk of Guangdong power grid.关键词
直流输电/换相失败/多馈入有效短路比/电压失稳Key words
HVDC transmission/commutation failure/multi-infeed effective short circuit ratio/voltage instability分类
信息技术与安全科学引用本文复制引用
周保荣,洪潮,饶宏,赵勇..广东多直流输电换相失败对电网稳定运行的影响[J].南方电网技术,2017,11(3):18-24,7.
