具有稳流输出的无线电能传输电路

发布时间：2018-01-15 14:19

本文关键词：具有稳流输出的无线电能传输电路　出处：《电机与控制学报》2014年08期 　论文类型：期刊论文

【摘要】：针对LC串联谐振和并联谐振在工作频率发生漂移时,电路整体功率传输能力及效率都会明显下降的问题,提出一种一次侧带有LCC(电感-电容-电容)复合谐振网络的无线电能传输电路。依据互感模型,在基波条件下,分别建立了耦合线圈一次侧与二次侧的等效电路,得到了谐振频率和输出电流表达式,并进一步导出了复合谐振网络中电感与电容的计算公式。实验结果表明,谐振频率与负载电阻无关,在谐振频率下,当耦合线圈的距离保持不变(即互感恒定)时,输出电流的有效值恒定,具有电流源特性。通过实验与仿真结果的比较,验证了对该电路分析与设计结果的正确性和有效性。因此该电路适合于需要电流源供电的负载,经改进后还可用于电场耦合式无线电能传输。
[Abstract]:When LC series resonance and parallel resonance drift in operating frequency, the overall power transmission capacity and efficiency of the circuit will obviously decrease. This paper presents a radio energy transmission circuit with LCC (inductance capacitance-capacitor) complex resonant network on the primary side. According to the mutual inductance model, under the condition of fundamental wave. The equivalent circuits of the primary side and the secondary side of the coupling coil are established, the expressions of resonant frequency and output current are obtained, and the formulas for calculating inductance and capacitance in the compound resonant network are derived. The experimental results show that. The resonant frequency is independent of the load resistance. At the resonant frequency, the effective value of the output current is constant when the distance of the coupling coil remains constant (i.e. the mutual inductance is constant). Through the comparison of experimental and simulation results, the correctness and validity of the analysis and design results of the circuit are verified. Therefore, the circuit is suitable for the load which needs the current source to supply power. It can also be used for electric field coupled radio energy transmission.
【作者单位】：大连理工大学电气工程学院;
【基金】：国家自然科学基金(61371026) 高等学校博士学科点专项科研基金(20110041110016)
【分类号】：TM724
【正文快照】： 0引言无线电能传输(wireless power transmission,WPT)技术是当前电气工程领域最活跃的研究热点之一,同时正吸引其他学科开展交叉研究[1-3]。与传统供电方式相比,WPT技术的最大优点是实现了电能在电源与负载之间的无电气接触式传输,从而改变了电源到负载的接入方式。在便携设

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