摘 要:非接触供电技术是一项新型的电能传输技术,其应用磁场耦合的原理,通过原副边分开的变压器来传输电能。首先,论文考虑到绕组电阻的影响,按照串串(S/S)补偿非接触谐振变换器的互感等效模型,剖析了输出电压增益和输入阻抗,并给出推导过程。然后通过推导的结果揭示了串串补偿非接触变换器的自激控制特性,推导了相应的自激控制框图。最后,具体分析了自激驱动电路的每一部分功能及作用,并提出了使用超外差无线传输模块电路将副边的电流相位信号发送至原边,在此基础上详细介绍了无线传输模块的结构以及在自激驱动电路中的具体应用。对于无线射频电路中用到的的编解码模块PT2262和PT2272也进行了一定的研究和介绍。91497
毕业论文关键词:非接触谐振变换器,串/串补偿,自激控制策略,非接触电能传输。
Abstract:Contactless power transmission (CPT)is a new type of power transmission technology, which uses the principle of magnetic field coupling, through the original vice-separation of the transformer to transmit power。 Firstly, considering the influence of winding resistance, the output voltage gain and input impedance are analyzed according to the mutual inductance equivalent model of the S / S compensation non - contact resonant converter。 Then the self - excitation control characteristics of the series - compensated non - contact converter are revealed by the results of the derivation。 The corresponding self - excited control block diagram is deduced。 Finally, the function of each part of the self-excited drive circuit are analyzed in detail, and the current phase signal of the secondary side is sent to the primary side using the superheterodyne wireless transmission module circuit。 On this basis, the wireless transmission module Principle and its specific application in the self-excited drive circuit are introduced。 In this paper, the codec modules PT2262/PT2272 in wireless RF circuit are also studied。
Keywords: Self-oscillating control,Contactless resonant converter, S/S compensation, Wireless power transmission
目 录
1 绪论 6
1。1 非接触供电技术简介 6
1。2 非接触供电技术应用现状 6
1。3课题研究意义 7
1。4本文的研究内容及研究源G于J优L尔V论N文M网WwW.youeRw.com 原文+QQ75201`8766 意义 8
2 串/串补偿非接触变换器工作特性及其自激控制策略 9
2。1 引言 9
2。2自激控制策略简介 9
2。3 基本特性研究 10
2。3。1基波等效电路 10
2。3。2输出电压增益 12
2。3。3输入阻抗 15
2。4自激控制的实现 17
2。5本章小结 18
3 副边电流相位检测及驱动电路 18
3。1 引言 18
3。2 电流相位检测技术 18
3。3自激驱动技术研究 19
3。3。1 串串补偿自激控驱动策略 19
3。3。2 过零比较单元 20
3。3。3无线射频模块传输单元