174 / 2024-04-15 15:40:57

Design of an IWPT system with high insulation performance

Isolated Power Delivery,High-Voltage System,LC Topology Circuit

  As electric power systems continue to advance, the application of insulation isolation power supply technology is expanding across a broad range of scenarios, such as online monitoring of electrical equipment and lines. This technology aims not only to enhance the insulation's withstand voltage but also to augment the capacity for power transmission.

  In this paper, an Inductive Wireless Power Transfer(IWPT) device with high insulation performance to meet these challenging requirements is presented. The coupling coils are fixed at both ends of a ceramic insulation structure and embedded in an insulator with epoxy resin in order to transfer power between sides of different voltage levels while maintaining the insulation performance. LC topology circuits are utilized to enhances the power transmission and efficiency of the wireless power transfer system. The reliability of the design was confirmed through simulation calculations with output power of 93.11 W, and the overall efficiency of 98.55%.

  Currently, an IWPT system has been developed, achieving an output power of 88.374 W and an efficiency of 94.03%. And a ceramic insulation structure, capable of withstanding a minimum of 50 kV, has been successfully manufactured. The experimental results indicate that the wireless power transfer system, as designed, successfully achieves high-power transmission while maintaining a high tolerance for insulation.