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Di, Miao; Zhang, Xuezheng; Zhang, Yunhui
IOP conference series. Earth and environmental science, 07/2019, Letnik: 300, Številka: 4Journal Article
The active filter has different connection methods, and the methods used are also various. With the deepening of research, more novel filtering methods are proposed and applied, which enhances the efficiency and rapidity of filtering. At present, China has made great progress in harmonic suppression. In the face of the fact that harmonic problems are becoming more and more serious, the research of filtering technology and the popularization and application of filtering equipment are urgently needed.
