LIANG JIFENG, HE RUIDONG, JIAO YADONG, et al. Field Verification Method of Harmonic Measurement Error of CVT Based on Multi-criteria Fusion. [J]. Power capacitor & reactive power compensation, 2021, 42(2): 59-64.
LIANG JIFENG, HE RUIDONG, JIAO YADONG, et al. Field Verification Method of Harmonic Measurement Error of CVT Based on Multi-criteria Fusion. [J]. Power capacitor & reactive power compensation, 2021, 42(2): 59-64. DOI: 10.14044/j.1674-1757.pcrpc.2021.02.011.
With the continuous deepening of power quality monitoring and management
the issue of harmonic measurement error due to capacitor voltage transformer(CVT)
which is operated widely in the high-voltage power grid
is unavoidable. In this paper
the root cause harmonic measurement error of CVT is studied by the harmonic equivalent model so to compare and analyze the difference of harmonic measurement error of different CVT. Secondly
the multi-criteria fusion verification method which is suitable for the harmonic measurement error of the site operating CVT of substation is proposed based on the test result. Finally
the monitoring scheme of certain 220 kV substation is designed on this basis. It is shown by the analysis result that the method can effectively judge the harmonic measurement error of CVT.
关键词
电能质量监测电容式电压互感器谐波误差试验多判据融合
Keywords
power quality monitoringcapacitor voltage transformerharmonicerror testmulti-criteria fusion