摘要
青藏直流系统投运初期,柴达木换流变电站末屏测量装置电压波形畸变导致极保护系统频发UVY和UVD故障,致使换流变阀侧套管末屏电压测量装置对直流系统稳定运行造成影响。通过对柴达木换流变电站换流变套管末屏电压测量装置改造研究,消除了换流变其他套管末屏电压测量装置存在的安全隐患,确保了青藏直流联网系统的稳定运行。
At the initial stage of the operation of the Qinghai-Tibet DC system,the voltage waveform distortion of the terminal screen measuring device of the Qaidam converter substation caused frequent UVY and UVD faults in the pole protection system,resulting in disturbance to the stability of the DC system of the converter-side bushing.Through the research on the modification of the voltage measuring device at the end of the converter casing of the Qaidam converter substation,the safety hazard of the voltage measuring device of the other end of the converter is eliminated,and the stable operation of the Qinghai-Tibet DC network system is ensured.
作者
田银刚
冯晓佳
TIAN Yingang;FENG Xiaojia(State Grid Lhasa Power Supply Company, Lhasa 850000, China;State Grid Xixian New District Power Supply Company, Xi′an 710000, China)
出处
《安徽电气工程职业技术学院学报》
2020年第1期79-82,共4页
Journal of Anhui Electrical Engineering Professional Technique College
关键词
畸变
故障
安全隐患
改造
distortion
fault
safety hazard
reform
作者简介
田银刚(1983-),男,陕西扶风人,工程师,研究方向:电力系统继电保护及自动化;冯晓佳(1987-),女,陕西阎良人,助理工程师,研究方向:电力系统工程财务管理。
