应用于金属转轴监测的无线电能与信号同步传输系统优化研究

Optimization study of simultaneous wireless power and data transfer system applied in metal shaft monitoring

涡流损耗的存在,使得应用于金属转轴监测的无线电能与信号同步传输系统的电能传输效率和信号传输质量下降。针对上述问题,通过对金属转轴涡流损耗的分析推导,建立包含涡流损耗等效阻抗的耦合线圈电路模型,以S-S型信号注入式SWPDT系统为基础,分析其电能传输与信号传输特性,以电能传输效率和信号传输增益为优化目标,采用多目标粒子群优化算法,对系统关键参数进行优化,并根据优化参数搭建实验测试平台,结果显示该优化方案可实现金属转轴环境下46.7%的电能传输效率和250 kbit/s的信号传输速率,验证了所提优化方案的正确性与可行性。

The existence of eddy current loss leads to a reduction in the energy transfer efficiency and signal transmission quality of simultaneously wireless power and data transfer utilized for metal shaft monitoring.To address this issue,an analysis and derivation of eddy current loss in metal rotors were conducted.Subsequently,a coupling coil circuit model incorporating the equivalent impedance of eddy current loss was established.Building upon the S-S type signal injection SWPDT system,the energy transfer and data transmission characteristics were analyzed.Employing energy transfer efficiency and data transmission gain as optimization objectives,a multi-objective particle swarm optimization algorithm was utilized to optimize the critical parameters of the system.An experimental test platform was constructed based on the optimized parameters.The results demonstrated that the proposed optimization scheme achieves 46.7%energy transfer efficiency and a data transmission rate of 250 kbit/s in metal shaft environment,thus validating the correctness and feasibility of the proposed optimization approach.