高压直流巡检机器人双线圈磁力悬浮方法

High-Voltage DC Inspection Robot Double Coil Magnetic Suspension Method

针对现有的高压直流输电线路磁悬浮巡检机器人在多功能化过程中出现承载能力低的问题,在原有磁力悬浮物理模型参数不变的前提下,提出了一种双线圈磁力悬浮方法。通过分析高压直流导线周围的磁场特性,建立了双线圈磁力悬浮物理模型。分析了载流线圈所受安培力的大小与载流线圈匝数关系、载流线圈所受安培力的大小与载流线圈层数的关系。通过对两种模型提供的磁力悬浮力的理论计算,证明了在模型其它参数相同的前提下,双线圈模型可大大提高磁力悬浮力。最后运用COMSOL仿真软件对单、双线圈磁力悬浮模型进行仿真,仿真结果与理论计算结果一致,证明了双线圈磁力悬浮模型的正确性。

The bearing capacity of existing HVDC transmission line magnetic levitation inspection robots is low in the process of multi-functionalization,. Under the premise of the original magnetic suspension physical model parameters unchanged, a dual coil magnetic suspension method was proposed in the paper. By analyzing the magnetic field characteristics around the high-voltage DC wire, a two-coil magnetic suspension physical model was established. The relationship between the ampacity of the current-carrying coil and the number of turns of the current-carrying coil, the amperage of the current-carrying coil and the number of the current-carrying coils were analyzed. Through the theoretical calculation of the magnetic levitation forces provided by the two models, it was proved that under the premise of the same other parameters of the model, the double coil model can greatly increase the magnetic levitation force. Finally, COMSOL simulation software was used to simulate single and double coil magnetic suspension model, the simulation results are consistent with the theoretical calculation results, which proves the correctness of the double coil magnetic suspension model.