Design and optimization of multi-dimensional wireless power transmission system

WU Jinbin; YAN Guozheng; WEN Renqing; WANG Zhiwu; ZHUANG Haoyu

doi:10.37188/OPE.20233115.2218

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Design and optimization of multi-dimensional wireless power transmission system

Micro/Nano Technology and Fine Mechanics | 更新时间：2023-08-28

- Design and optimization of multi-dimensional wireless power transmission system
- Optics and Precision Engineering Vol. 31, Issue 15, Pages: 2218-2226(2023)
- 作者机构：
  
  上海交通大学电子信息与电气工程学院，上海 200240
- 作者简介：
- 基金信息：
- DOI：10.37188/OPE.20233115.2218
  CLC： TH776;TM15
- Received：05 January 2023，
  
  Revised：28 February 2023，
  
  Published：10 August 2023
- 稿件说明：
移动端阅览
吴劲斌,颜国正,文人庆等.多维无线能量传输系统的设计与优化[J].光学精密工程,2023,31(15):2218-2226.

WU Jinbin,YAN Guozheng,WEN Renqing,et al.Design and optimization of multi-dimensional wireless power transmission system[J].Optics and Precision Engineering,2023,31(15):2218-2226.
吴劲斌,颜国正,文人庆等.多维无线能量传输系统的设计与优化[J].光学精密工程,2023,31(15):2218-2226. DOI： 10.37188/OPE.20233115.2218.

WU Jinbin,YAN Guozheng,WEN Renqing,et al.Design and optimization of multi-dimensional wireless power transmission system[J].Optics and Precision Engineering,2023,31(15):2218-2226. DOI： 10.37188/OPE.20233115.2218.

摘要

为实现胃肠道胶囊机器人多维无线能量传输，减小接收线圈的绕制维度、体积与产热，设计了一种双维正交矩形螺线管对发射线圈结构。可通过控制不同组发射线圈的电流来改变合成磁场方向，同时该结构发射线圈内部可嵌入磁芯，其线圈间距也可根据检测者体型灵活调整，减小功率损耗。建立了所构建无线能量传输系统的理论模型，通过有限元仿真验证磁芯对系统性能的提高，最后通过搭建实验平台进行测试，优化了单维接收线圈的参数，同时实验验证了该系统在不同发射线圈间距下的可行性。实验结果表明，在线径为0.05 mm的条件下，所构建系统接收线圈的最佳绕制股数为12，优化后的匝数为120。当发射电压为15 V，发射线圈间距为300 mm的条件下得到的中心最小接收功率为1 578 mW，能量传输效率为3.85%。该系统在300~500 mm发射线圈间距下均可满足胶囊机器人的功率需求。

Abstract

To realize multidimensional wireless power transmission （WPT） of the gastrointestinal capsule robot （CR） and reduce the winding dimension， volume， and heat production of the receiving coil， a novel structure of double dimensional orthogonal rectangular solenoid pair transmitting coil was designed. The direction of the synthesized magnetic field was changed by controlling the currents of different groups of transmitting coils. In addition， the magnetic core was embedded in the transmitting coils of the structure. The distance between the coils was adjusted flexibly according to the size of the detector to reduce the power loss. In this study， a theoretical model of the constructed WPT system was established， and then a finite-element simulation was performed to verify the improvement in the system performance due to the magnetic core. Finally， an experimental platform was set up for testing， and the parameters of the one-dimensional receiving coil were optimized. Furthermore， the feasibility of the system under different transmitting-coil spacings was experimentally verified. The experimental results indicate that when the on-line diameter is 0.05 mm， the optimal number of coils wound is 12， and the optimized number of turns is 120. When the transmitting voltage is 15 V and the transmitting-coil spacing is 300 mm， the minimum receiving power of the center is 1 578 mW， and the energy transmission efficiency is 3.85%. The system can meet the power requirements of the capsule robot with a transmitting-coil spacing in the range of 300-500 mm.

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references

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