一种具有单发射双拾取结构的CPT系统

A CPT System With Single Transmit Plate and Dual Pick-up Plates Structure

传统的电场耦合式无线电能传输(CPT)系统由单对耦合极板结构传输电能,由于受到接收侧半导体容量的限制,单拾取结构难以给轨道交通非接触供电等大功率负载提供足够的功率。为了增加CPT系统的输出功率,此处构建了基于电场耦合式的单发射双拾取无线电能传输结构,通过双拾取耦合极板结构来实现CPT系统输出功率的叠加。此处通过T型CLC补偿电路对耦合极板的等效电容进行补偿,并利用基波等效对电路拓扑结构进行了分析。建立输出总功率为650 W的实验系统,验证了两个整流器的输出功率比为1:1的工况。这种基于电场耦合式的单发射双拾取无线电能传输结构具有稳定性、经济性、结构简单的优点。

For the electronic device capacity limitation of semiconductor in single-coupling plates adopted in the re ceiving side of traditional field coupling power transfer (CPT) systems, it may not be able to provide adequate power for rail transit.On behalf of enhancing CPT system, a CPT system with a single transmit plate and dual pick-up plate is proposed, compensating capacitance with CLC circuit, analyzing circuit topology with sinusoidal equivalent model, verifying working status of experimental system outputting 650 W power where the two rectifiers sharing the same pro portion of output power.The experimental results prove the proposed CPT system is feasible.The wireless power trans mission system with single transmit plate and dual pick-up plates is stable, economic , simple and convenient.