XING YUTING, SU HONGSHENG. Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 19-25.
XING YUTING, SU HONGSHENG. Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 19-25. DOI: 10.14044/j.1674-1757.pcrpc.2018.02.004.
Distribution static synchronous compensator(D-STATCOM) is used to suppress voltage fluctuation and flicker in distribution grid. For keeping the harmonic contents of D-STATCOM output current meet the requirement
high frequency harmonic current is limited by the single inductor L. In case of intermediate and high power
however
the L value needed to meet the harmonic standard is increased
causing the increase of voltage at the DC side of D-STATCOM and of volume of the device. Therefore
in this paper
LCL filter is used to replace traditional L filter so to reduce the total inductance
system volume and cost. The correctness of the theory is verified by the simulation that D-STATCOM based on LCL filter not only has good suppression to the voltage fluctuation and flicker of the distribution grid
but also
compared to the D-STATCOM based on L filter
has good harmonic suppression result of output current.
关键词
静止同步补偿器(D-STATCOM)电压波动和闪变LCL滤波器PI控制
Keywords
distribution static synchronous compensator(D-STATCOM)voltage fluctuation and flickerLCL filterPI control