1.广西电网有限责任公司柳州供电局;2.重庆大学自动化学院
1.Liuzhou Power Supply Bureau of Guangxi Power Grid Co., Ltd;2.School of Automation, Chongqing University
无线电能传输系统中接收端与发射端之间相对位置的偏移会在一定程度上影响系统传输效率，本文从耦合机构的全范围抗偏移性及互操作性两个方面进行研究。提出一种提出了多对一的耦合模式，发射线圈类型为平面分布式发射单元线圈组合，对不同的接收线圈类型、轴向偏移工况和旋转偏移工况的位置模态研究分布式发射线圈的开启模式，以实现接收线圈的互操作性和大范围全方向的抗偏移性。为了提高分布式发射线圈的自由度，提出分布式串联控制逻辑电路，并对发射线圈串联连接工况下的谐振参数进行设计以减少交叉耦合的影响。结合分布式发射线圈的磁场特性和基于LCC-S谐振拓扑的拾取电压检测法提出了接收线圈位置检测的搜索策略。搭建实验装置，综合所有位置的轴向偏移及旋转偏移，平面式接收线圈的最大效率波动为3.3%，垂直式接收线圈的最大效率波动为5.57%，螺线管式接收线圈的最大效率波动为4.45%，实验结果表明了其具有良好的抗偏移特性与互操作性，验证了系统的可行性与高效性。
The offset of the relative position between the receiver and transmitter in the radio energy transmission system will affect the system transmission efficiency to a certain extent. In this paper, the full-range offset resistance and interoperability of the coupling mechanism are investigated in two aspects. A proposed many-to-one coupling mode is proposed, the transmit coil type is a planar distributed transmit unit coil combination, and the open mode of the distributed transmit coil is studied for different receive coil types, axial offset conditions and rotational offset conditions of the position mode to achieve interoperability and wide-range all-directional offset resistance of the receive coil. To improve the degree of freedom of the distributed transmit coil, a distributed series control logic circuit is proposed, and the resonance parameters of the transmit coil are designed for the series connection condition to reduce the effect of cross-coupling. The search strategy for receiving coil position detection is proposed by combining the magnetic field characteristics of the distributed transmit coil and the pickup voltage detection method based on the LCC-S resonant topology. An experimental setup is built, and taking the axial and rotational offsets of all positions into account, the maximum efficiency fluctuation of the planar receiving coil is 3.3%, the maximum efficiency fluctuation of the vertical receiving coil is 5.57%, and the maximum efficiency fluctuation of the solenoid receiving coil is 4.45%. The experimental results show that the proposed system has good antioffset characteristics and interoperability, verifying the feasibility and efficiency of the system.
