Design of Planar Magnetic Integrated LCL-EMI Filter for the Grid-Connected Inverter

Harmonic and electromagnetic interference (EMI) filters are two important output filters used to suppress harmonic distortion and EMI noise in grid-connected inverter. In this paper, harmonic and EMI filters are combined by planar magnetic integration to reduce the volume and weight. By building a single-phase Gan inverter platform, the LCL-EMI filter with planar magnetic integration is experimentally analyzed to verify the feasibility of the planar magnetic integration method.