A Compact and Integrated Magnetic Coupler Design with Cross-coupling Elimination Utilizing LCC-LCC/S Compensation Network for Building Attached Photovoltaic Systems

A compact and integrated wireless charging system is presented in this digest for the purpose of charging a photovoltaic system attached to a building. In such an integrated system, cross-coupling interference presents a challenge, which is addressed by using DD coils and Q coils. Moreover, since cross-coupling has been eliminated, it is convenient and efficient to design corresponding compensation networks. The theoretical analysis shows that the well-designed LCC-LCC and LCC-S compensation structures can provide load-independent constant current and voltage outputs, respectively.