桌面多电气设备高效无线供电技术研究

发布时间：2018-05-21 12:45

本文选题：ICPT + 无线供电平台　；参考：《中国矿业大学》2014年硕士论文

【摘要】：随着科学技术的发展，便携式桌面电气设备日益普及，其中大部分采用传统的有线供电方式，但存在安全性低、可靠性差、携带不方便等缺点。因此，无线供电技术受到了广泛的关注。感应耦合式电能传输技术(ICPT)是一种利用电磁感应原理的无线电能传输技术。本文分别对单相ICPT和三相ICPT系统的逆变电路拓扑和功率补偿拓扑进行研究，并给出了单相ICPT系统的原副边谐振参数的计算公式。桌面电气设备存在着使用位置不确定、多设备并行供电的问题。本文通过供电模式的合理选择和负载识别技术使问题得以解决。首先选取了无线供电网技术作为无线供电平台的供电模式，并对无线供电平台的原副边线圈结构进行了分析后选择出合适的结构。然后提出了负载识别方案，将无线供电平台按区域划分，通过射频识别技术(RFID)确定负载所在的区域后循环导通该区域的原边线圈，进而判断出离负载最近的一组线圈，并采用这组线圈为负载供电。由于采用的三相ICPT系统存在电压拾取盲点，对相应的抑制方法进行了研究。本文完成了无线供电平台的硬件电路设计，主要包括主电路拓扑、参数选择、负载识别电路以及副边电能变换电路的设计。采用有限元计算对无线供电平台原边线圈的磁场进行了分析，验证了螺旋线圈优化绕制方法的有效性。并根据无线供电平台的设计参数，搭建了仿真模型和实验平台，，实验结果符合理论分析并与仿真结果一致。最后对电压拾取盲点抑制方法进行了验证分析。
[Abstract]:With the development of science and technology, portable desktop electrical equipment is becoming more and more popular, most of which use traditional wired power supply, but there are some shortcomings such as low security, poor reliability, inconvenient carrying and so on. Therefore, wireless power supply technology has received extensive attention. Inductive coupled Power Transmission (ICPTT) is a radio energy transmission technology based on electromagnetic induction. In this paper, the inverter circuit topology and power compensation topology of single-phase ICPT and three-phase ICPT systems are studied, and the formulas for calculating the primary and secondary resonance parameters of single-phase ICPT systems are given. Desktop electrical equipment has the problem of uncertain use position and parallel power supply of multi-equipment. The problem can be solved by reasonable selection of power supply mode and identification of load. Firstly, the wireless power supply technology is selected as the power supply mode of the wireless power supply platform, and the structure of the primary and secondary coils of the wireless power supply platform is analyzed and the appropriate structure is selected. Then a load identification scheme is put forward. The wireless power supply platform is divided according to the region, and the area in which the load is located is determined by radio frequency identification (RFID) technology. The primary coil of the region is turned on after circulation, and the group of coils closest to the load is judged. This group of coils are used to power the load. Due to the blind spot of voltage pickup in the three-phase ICPT system, the corresponding suppression methods are studied. In this paper, the hardware circuit design of wireless power supply platform is completed, including the main circuit topology, parameter selection, load identification circuit and secondary side power conversion circuit design. The magnetic field of the primary coil of the wireless power supply platform is analyzed by finite element method, which verifies the effectiveness of the optimal winding method of the helical coil. According to the design parameters of the wireless power supply platform, the simulation model and the experimental platform are built. The experimental results agree with the theoretical analysis and the simulation results. Finally, the blind spot suppression method of voltage pickup is verified and analyzed.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM724

【参考文献】