基于电场谐振式无线电能传输的研究

发布时间：2018-04-02 07:10

本文选题：无线电能传输技术(WPT)　切入点：电磁感应耦合　出处：《昆明理工大学》2017年硕士论文

【摘要】：无线电能传输技术(WPT,Wireless Power Transmission Technique)是电能从电源到负载的一种没有经过电气直接接触的能量传输方式,因其舍弃了电线的干扰和繁杂,相比于有线充电来说,更加的安全和方便。电磁感应耦合的无线电能传输(ICPT,Inductively Coupled Power Transfer)因其传输距离,传输功率较大等特点而备受国内外研究团队的关注。ICPT能够有效解决许多问题,而电场在许多特性上与磁场相似而且两者在基本理论上也呈现出对偶性,在很多方面更加优于磁场,因此基于电场耦合方式的无线电能传输(ECPT,Electric-field Coupled Power Transfer)近年来成为了新的关注焦点。本文针对无线电能传输在轨道交通供电系统中的应用,设计了一套电场谐振式无线电能传输系统,具体包括分析了 ECPT技术的国内外现状、ECPT的耦合结构及调谐系统,采用四线圈结构与ECPT技术相结合设计出一种新型的ECPT补偿结构,针对通用的ECPT补偿结构,通过公式推导分析补偿结构的最优参数。基于ECPT系统,设计出了两套适用于轨道交通供电系统的方案,通过选定方案及硬件材料制作出实际实验模型。基于LT-spice仿真软件,建立了仿真模型,验证了新型ECPT系统的可行性。在理论研究以及仿真分析的基础之上,搭建实验模型,设计出具体参数。最终利用耦合电容仅为24pF的情况下完成700W的电能传输,效率达到91%。
[Abstract]:Radio transmission technology (WPT, Wireless Power Transmission Technique) is the power from the power supply to a without direct contact with the electrical energy transmission mode of the load, because of the abandoned wire interference and complex, compared to wired charging, more safe and convenient. The electromagnetic inductive coupling wireless power transmission (ICPT Inductively Coupled Power Transfer) because of its transmission distance, transmission power is large and much research team of domestic attention.ICPT can effectively solve many problems, and the electric field and magnetic field characteristics in many similar and both in the basic theory also presents the duality, in many ways more than the magnetic field, therefore based on electric field coupling mode wireless power transmission (ECPT, Electric-field Coupled Power Transfer) has become the new focus. According to the radio transmission in orbit Application of traffic in the power supply system, a set of electric resonant wireless power transmission system is designed, including the analysis of the current situation of ECPT technology at home and abroad, coupled structure and tuning system of ECPT, designs a new ECPT compensation structure adopts four coil structure combined with ECPT technology, the ECPT general compensation structure through the analysis, formula derivation of optimal parameter compensation structure. Based on the ECPT system, designed two sets for rail transit power supply system, through the selected scheme and hardware materials to produce the actual experimental model. Based on the LT-spice simulation software, simulation model is established to verify the feasibility of the new ECPT system. On the basis of theoretical research and the basis of simulation analysis, experimental model, design a specific parameter. The coupling capacitance is only 24pF under the condition of complete 700W power transmission efficiency reached 91%.

【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM724

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