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Research and Design of Coupling Structure of Inductive Wireless Power Transmission DC Side Parallel System

Wireless power transmission technology has the characteristics of flexibility, safety, and reliability, and has become an inevitable trend in the development of modern power transmission technology. In order to improve the power capacity of the inductive wireless power transmission system, this paper proposes a modular inductive wireless power transmission DC side parallel system based on bilateral LCC compensation. The system coupling parameters and compensation network are theoretically analyzed using mutual inductance theory and circuit principles, and Combined with Maxwell simulation, design the structural parameters and electrical parameters of the parallel coupler. Afterwards, through multiple sets of comparative experiments, the changes of the coupling coil parameters under the influence of the horizontal offset between the coupling coils and the change of the parallel coupler spacing are tested, and the performance of the coupling structure is studied and analyzed.