弱电网条件下用于降低并网变换器电流谐波的集成陷波LCL滤波器

High-frequency current harmonics injected into the point of common coupling, mainly at the switching frequency and its multiples introduced by the modulation of grid-connected converters, should be limited to comply with grid codes. This requirement can be satisfied by using trap filters with LC-traps tuned at the switching frequency and its multiples in replacement of conventional L filters. Howe...