【作者】 严沁；

【导师】 郁进明；

【作者基本信息】 东华大学 ， 信号与信息处理， 2010， 硕士

【摘要】 感应耦合能量传输技术是电能传输的一个崭新的研究领域,正日益受到广泛的关注。它融合了电磁耦合原理、能量变换技术、现代电力电子技术和现代控制理论,实现了能量的非接触传递,为电子设备提供了更为方便快捷的充电方式,感应耦合能量传输技术在交通、医疗、工业等其他领域有着广泛的应用前景。本论文介绍了感应耦合能量传输技术的工作原理,分析了感应耦合能量传输关键技术,基于全桥相移拓扑建立了数学模型,并据此对电路进行了详细分析,为电路设计实验验证设计总体思路,通过对逆变器拓扑分析,系统设计采用全桥逆变器结构,通过对谐振补偿网络进行分析,推导计算各种补偿电路的输出功率、补偿电容以及等效电路阻抗,对各部分进行了仿真。本论文根据可分离变压器特性,分析了磁路和最佳非接触变压器的磁芯结构,并对磁芯材料选择做了分析,进一步研究了绕组位置以及气隙对耦合效率的影响,从互感模型出发,对可分离变压器进行建模并进行电路计算,对各项参数对于传输效率的影响进行仿真。本论文根据相移控制电路的工作原理,基于HIP4081设计了一种全新的半控型相移控制电路,设计使用简单逻辑门实现相移驱动信号,并对包括变压器、整流桥、功率开关管、滤波电容电感等电路元器件参数进行了设计。基于开关网络平均模型法为感应耦合能量传输系统建立小信号模型及等效电路,计算相应的传递函数,在频域进行仿真,并基于此设计补偿网络。本论文基于对初次级补偿、变压器设计、反馈与控制方法深入研究,提出了完整电路设计方案。对电路各部分进行了仿真,验证其的可行性,根据实际电路对非接触能量传输系统的影响因素进行了分析,最后通过实际的电源设计,设计了输入48V/输出12V的实验开关电源,基本上达到设计要求。更多还原

【Abstract】 Inductive Coupled Power Transfer (ICPT) has attracted wider and wider spread attention recently as an emerging research field. This techonoly is based on electromagnetic induction, power electronics and modern control theory. It makes contactless energy transfer become true. Besides convenient and quick charging for electronic devices, ICPT can be widely used for charging in many areas including transportation, medical, industry and so on.This paper introduces the operation principle of ICPT and analyses the key technologies of it. Based on the mathematical model of full-bridge phase-shift topology, it analyses the circuit in detail and get a general idea for circuit design. Through the analysis of converter topology, this system use the full-bridge topology. Moreover, it analyses the resonant compensation network and derive the output power, resonant capacitor and equivalent circuit impendance to simulate some part of them.This paper analyses the magnetic and core structure of detachable transformer according to its features, and choose the core material as well. In addition, it research the coupling efficiency for kinds of location of windings and the gap. Based on the mutual inductance model, it makes model for the detachable transformer and calculate the circuit. The paper also simulate the effect of various parameters to the transfer efficiency.This paper designs a new phase-shift half-control circuit based on the operation principle of phase-shift control using HIP4081. In addition, it uses a simple logic gates to generate phase-shift signal. The paper designs the circuit parameters including transformer, rectifier, MOSFET, filter capacitor and inductance. Small signal model and its equivalent circuit are derived by using switching network average model method. The corresponding transfer function are derived from them. The paper then simulate the model in frequency, and designs the compensate network based on the model.This paper proposes the whole ciucuit design based on primary and secondary compensation, detachable transformer and feedback control method. It simulate every part of the circuit to verify it. Based on the practical ciucuit, the paper analyses the effect of transfer efficiency in contactless energy transfer system. At last, make the actual switch power (48V in,12V out) design and meet the requirements basically.更多还原