磁场耦合无线电能传输系统最大功率要素分析

发布时间：2018-01-19 23:47

本文关键词： 无线电能传输磁场耦合最大功率回路阻抗互感电抗　出处：《电机与控制学报》2017年03期 　论文类型：期刊论文

【摘要】：针对无线电能传输系统的功率和效率问题,在特定频率下研究了影响无线电能传输系统最大传输功率的若干要素。以磁场耦合单元为核心建立简化模型,包括发射回路、接收回路,以及两个回路之间的磁场耦合单元。分别研究发射回路电抗、接收回路电抗、互感电抗等在单独变化,或协同变化时,如何影响最大功率传输条件,最大功率值和传输效率等。研究发现,不同情况下的最大功率传输条件之间存在内在联系;在发射回路与接收回路电阻乘积较小时,松耦合谐振才能传输最大功率。此结论不依赖于阻抗补偿形式,并且对感应耦合式和磁场共振式无线电能传输系统均适用。仿真和实验结果与理论分析结果一致。
[Abstract]:Aiming at the problem of power and efficiency of radio energy transmission system, some factors affecting the maximum transmission power of radio energy transmission system are studied at specific frequencies. A simplified model is established with the magnetic field coupling unit as the core. It includes transmitting circuit, receiving circuit, and magnetic field coupling unit between two circuits. The reactance of transmitting circuit, receiving circuit, mutual inductance and so on are studied separately or synergistically. How to influence the maximum power transmission condition, the maximum power value and the transmission efficiency, etc. The maximum power can only be transmitted by loosely coupled resonance when the resistance product between the transmitting loop and the receiving loop is small. This conclusion does not depend on the form of impedance compensation. The simulation and experimental results are in agreement with the theoretical analysis.
【作者单位】：大连理工大学电气工程学院;中电投吉林核电有限公司;
【基金】：国家自然科学基金(61371026)
【分类号】：TM724
【正文快照】： 0引言无线电能传输(wireless power transmission,WPT),由于美好的应用前景和诸多需要探索的科学问题,使得人们对其研究空前活跃[1-6]。在WPT技术中,通常希望所设计的系统具有较大的功率传输能力(注:如无特殊说明,文中的功率均指平均功率即有功功率)和稳定的输出电压。为了使

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