WU JIAQI, CHEN FEI, TAN JING, et al. Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C1 at Yidu Converter Station. [J]. Power capacitor & reactive power compensation, 2020, 41(6): 8-14.
WU JIAQI, CHEN FEI, TAN JING, et al. Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C1 at Yidu Converter Station. [J]. Power capacitor & reactive power compensation, 2020, 41(6): 8-14. DOI: 10.14044/j.1674-1757.pcrpc.2020.06.002.
the influence of such three factors as unreasonable allocation of DC filter
fault of optical fifer current transformer and its secondary measurement circuit and the reduced dielectric performance of composite insulator between capacitor towers is analyzed systematically with combination of frequent warning of unbalanced protection of capacitor C
1
of DC filter Z
12
at pole I of Yidu 500 kV converter station and based on the unbalanced protection allocation DC filter capacitor in the station.The solution to the PRTV anti-pollution flash coating on the porcelain between the capacitor towers is proposed.The effectiveness of the measures is verified by the
actual operation
which provides a scientific theoretical basis and reasonable on-site maintenance experience for the daily maintenance and repair of DC filters for HVDC power transmission engineering.
关键词
高压直流输电直流滤波器高压电容器电容器不平衡保护
Keywords
HVDC power transmissionDC filterhigh voltage capacitorunbalance protection forcapacitor