基于LCC的磁谐振无线电能传输发射端补偿技术

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摘要

为实现磁耦合谐振式无线电能传输系统最大化功率传输,提升整机效率,提出了一种基于LCC三阶补偿网络结构的保持发射端线圈电流恒定的方法,此方法不受接收端反射阻抗影响,实现了电磁感应式无线电能传输（ICPT）系统发射端与接收端解耦设计。同时,提出了LCC补偿网络的数学模型及其参数设计方法。在不增加元件的情况下,采用LCC网络的输入基波电流补偿LCC网络的输入高次谐波电流的方法,在功率管关断瞬间,降低通过功率管的电流瞬时值,实现了高频逆变器的零电流关断,减小了功率管的开关损耗和开关应力,提高了ICPT系统的整体效率。最后,对所提方法进行了仿真分析和实验验证。仿真和实验结果验证了所提模型和参数设计方法的正确性和可行性。

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	高键鑫
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关键词 ：电磁感应式无线电能传输, 磁耦合, LCC, 谐振

Abstract：

In order to maximize the power transmission capability of the magnetic coupling resonant wireless power transmission system, and to improve the efficiency of the whole system, a compensation circuit design method which based on LCC three order network is proposed. The proposed method, which is not affected by the receiver reflected impedance, can keep the current in the transmitter coil constant, make the design procedure of the inductive contactless power transmission (ICPT) system transmitter and receiver decoupled. In the meanwhile, a LCC compensating network mathematical model and a method of parameter design is put forward. Without adding new electronic components, by using the input fundamental current of LCC networks to compensate the input harmonic current of LCC networks, the instantaneous current value at the switching time of the high frequency inverter is reduced. Thus, zero current switching of high frequency inverter is realized, the switching loss and switching stress of the power tube is reduced, and the overall efficiency of the ICPT system is improved. Finally, the computer simulation analysis and experimental verification of the proposed method are carried out. The simulation and experiment results show that the proposed method is correct and feasible.

Key words： Inductive contactless power transmission, magnetic coupling, LCC, resonance

出版日期: 2017-01-04

PACS:

TM724

作者简介: 高键鑫男,1989年生,博士研究生,研究方向为大功率无线供电技术。E-mail: gaojianxin_cn@163.com（通信作者）吴旭升男,1976年生,教授,博士生导师,研究方向为电力集成技术。E-mail: wuxusheng_hg@163.com

引用本文:

高键鑫, 吴旭升, 高嵬, 彭威. 基于LCC的磁谐振无线电能传输发射端补偿技术[J]. 电工技术学报, 2016, 31(增刊): 9-15. Gao Jianxin, Wu Xusheng, Gao Wei, Peng Wei. Compensation Technology of Magnetic Resonant Wireless Power Transfer Transmitter Based on LCC. Transactions of China Electrotechnical Society, 2016, 31(增刊): 9-15.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I增刊/9

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