Compensation Topology Analysis of IPT System with Multiple Receivers

Multi-receiver inductive power transfer (MR-IPT) technology has great potential for application. However, MRIPT has difficulty in load-independence, constant voltage (CV) or constant current (CC) output, and zero phase angle (ZPA). This paper established a model of the MR-IPT system based on two-port network, obtained the conditions for load-independence, investigated compensation topologies suitable for the primary and receiver sides of the MR-IPT system, proposed the design requirements for the primary and receiver side based on the T-circuit compensation topology. Finally, an experimental prototype was established and the reliability of performance was verified through comparative analysis.