摘要
从电路理论的角度建立了串-串谐振结构的无线能量传输(WPT)系统的功率模型和效率模型,将系统参数分为谐振参数和工作参数两部分,分别考察两类参数对模型的影响。通过将谐振参数空间分区比较,指出了当谐振参数在对称点处时系统具有最优的功率稳定域和效率稳定域。在谐振参数对称时,通过研究功率和效率模型的导数随工作参数变化的情况,提出了工作参数稳定域,给出了稳定的判别条件。结论可帮助设计系统的谐振参数及确定系统工作时的工作参数范围。理论分析与实验数据吻合,证明了模型和结论的正确性。
This paper models the load power and efficiency of the series-series wireless energy transfer system based on circuit theory.The parameters of the system are classified into two parts:the resonance parameters and the operating parameters,and the effects of the two kinds of parameters on the model are studied respectively.By partitioning the resonance parameter space and comparing them,it points out that the system has the optimal power stability region and efficiency stability region when the resonance parameters of the system are symmetrical.In the condition of the symmetrical resonance parameters,the operating parameters stability region and stability criteria are proposed by studying the derivative of power and efficiency with respect to operating parameters.The conclusion can help to design the resonant parameters,and determine the range of the operating parameters.The consistency of the experimental resuits and the theoretical analysis prove the correctness of the model and conclusion.
作者
吴朝晖
万如
李斌
杨祎巍
WU Zhao-hui;WAN Ru;LI Bin;YANG Yi-wei(South China University of Technology,Guangzhou 510640,China)
出处
《电力电子技术》
CSCD
北大核心
2016年第9期71-74,88,共5页
Power Electronics
基金
广东省科技计划项目(2013B010402001)
关键词
无线能量传输
谐振参数
工作参数
wireless power transfer
resonant parameter
operating parameter
