WANG JUNFENG, YANG YANRONG. Study on the Design of LCL Filter at the Grid-connected Side of DSTATCOM. [J]. Power capacitor & reactive power compensation, 2017, 38(2): 52-57.
WANG JUNFENG, YANG YANRONG. Study on the Design of LCL Filter at the Grid-connected Side of DSTATCOM. [J]. Power capacitor & reactive power compensation, 2017, 38(2): 52-57. DOI: 10.14044/j.1674-1757.pcrpc.2017.02.011.
Suitable filter is needed for adjustment due to the harmonics generated during switching period of switch and the system instability factor factors caused by the harmonics. On the condition of keeping the total inductance identical
type LCL filter has remarkable advantage compared to type L filter.Therefore
in this paper
the LCL filtering performance is analyzed from such three aspects as fundamental wave voltage drop of output voltage by filter
influence of DSTATCOM reactive power compensation and attenuation of switch harmonics of compensation current respectively and
on the basis of those analysis and also with combination of common design constraint of LCL filter
the design method at the grid-connected side of DSTATCOM is summarized. Finally
it is verified by the test that the designed LCL filter has good filtering result and also improves stability of DSTATCOM system.
关键词
配电网静止同步补偿器LCL滤波器电感基波压降无功补偿
Keywords
DSTATCOMLCL filterinductive fundamental wave voltage dropreactive power compensation