广东电力2016，Vol.29Issue(8)：51-55,5.DOI:10.3969/j.issn.1007-290X.2016.08.010
低频三次谐波电压对注入式定子接地保护的影响
Influence of Low-frequency Third Harmonic Voltage on Inj ection Stator Earthing Fault Protection
蔡朝辉 1贺儒飞1
作者信息
- 1. 广州蓄能水电厂，广东 广州 510000
- 折叠
摘要
Abstract
According to misoperation of injection stator eartching fault protection in the process of electric braking in Guang-zhou pumped storage power station,this paper analyzes influence of the third harmonic voltage of stator neutral point on al-gorithm for injection stator earthing fault protection under the working condition of generator electric braking. It also stud-ies action conditions causing protection misoperation. Meanwhile,it presents solutions to optimize protection logic so as to prevent protection misoperation and improve protection reliability.关键词
发电机/定子接地保护/三次谐波电压/注入式/保护误动Key words
generator/stator earthing fault protection/third harmonic voltage/injection/protection misopeartion分类
信息技术与安全科学引用本文复制引用
蔡朝辉,贺儒飞..低频三次谐波电压对注入式定子接地保护的影响[J].广东电力,2016,29(8):51-55,5.
