%0 Journal Article %T Control strategy for three-phase four-switch active power filter based on positive sequence extraction in stationary coordinate fundamental reference frame %A Guo, Fengfeng %A Qiao, Jiping %A Jia, Tianyu %A Wang, Lei %J Journal of Physics Conference Series %V 2656 %N 1 %P 6 %@ 1742-6588 %D 2023-12-01 %I IOP Publishing %~ DeepDyve