电工技术学报  2018, Vol. 33 Issue (18): 4207-4216    DOI: 10.19595/j.cnki.1000-6753.tces.171017
电工理论与新技术 |
基于LCL谐振变换器的电磁感应式非接触电能传输系统动态调压控制方法
高键鑫, 吴旭升, 高嵬, 胡风革, 李广义
海军工程大学电气工程学院 武汉 430033
Dynamic Voltage Regulation Control Method for Inductive Contactless Power Transfer System Based on LCL Resonant Converter
Gao Jianxin, Wu Xusheng, Gao Wei, Hu Fengge, Li Guangyi
Department of Electrical Engineering Naval University of Engineering Wuhan 430033 China
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摘要 为了解决电磁感应式非接触电能传输(ICPT)系统输出电压的可控动态调节问题,提出一种基于LCL谐振变换器的动态调压控制方法。发射端采用具有恒流输出特性的LCL谐振结构,使得流过发射端耦合线圈的电流呈现恒流特性。在接收端LCL谐振变换器输出侧并联一个用于调节电能输出的可控开关管,通过控制开关管的开关状态,实现电能的可控输出。当开关管关断时,接收端LCL谐振变换器输出电能给负载,输出电压上升;当开关管开通时,负载侧电能输出被切断,输出电压下降。通过检测输出电压,对可控开关管进行负反馈控制,可以动态调节电能输出功率,实现输出电压的动态调节。该方法只调节接收端,无需使用无线信道与发射端通信,电路结构及控制方法较为简单、易于实现,且适用于一个发射端对多个接收端无线供电。最后,搭建了2kW ICPT系统原理样机。通过实验验证了所提方法的可行性和正确性。
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高键鑫
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关键词 电磁感应式非接触电能传输LCL电压调节动态控制    
Abstract:In order to solve the controllable dynamic regulation of the output voltage of inductive contactless power transfer (ICPT) system, a dynamic voltage regulation control method based on LCL resonant converter is proposed. The LCL resonant structure that has constant current output characteristics is adopted at the transmitter, so that the current of the coupled coil of the transmitter exhibits constant current characteristics. At the receiver side, a controllable switch is connected with the output side of the LCL resonant converter in parallel to regulate the power output, and the controllable power output can be realized by controlling the switching state of the switch. When the switch is turned off, the LCL resonant converter at the receiver outputs the power to the load, and the output voltage rises. When the switch is turned on, the power output of the load is cut off and the output voltage drops. By detecting the output voltage, a negative feedback control is applied to the controllable switch, which can dynamically adjust the output power and realize the dynamic regulation of the output voltage. The method only adjusts the receiver, and does not need to communicate with the transmitter by wireless channel. The circuit structure and control method are simple and easy to implement. The proposed method is suitable for wireless power supply to multiple receivers using only one transmitter. Finally, a prototype of 2kW ICPT system is built. The feasibility and correctness of the proposed method are verified by experiments.
Key wordsInductive contactless power transfer    LCL    voltage regulation    dynamic control   
收稿日期: 2017-07-11      出版日期: 2018-09-26
PACS: TM154  
基金资助:国家自然科学基金(51507183)和海军工程大学博士创新基金(4142C15H)资助项目
通讯作者: 高键鑫 男,1989年生,博士,讲师,研究方向为大功率无线供电技术。E-mail: gaojianxin_cn@163.com   
作者简介: 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, 胡风革, 李广义. 基于LCL谐振变换器的电磁感应式非接触电能传输系统动态调压控制方法[J]. 电工技术学报, 2018, 33(18): 4207-4216. Gao Jianxin, Wu Xusheng, Gao Wei, Hu Fengge, Li Guangyi. Dynamic Voltage Regulation Control Method for Inductive Contactless Power Transfer System Based on LCL Resonant Converter. Transactions of China Electrotechnical Society, 2018, 33(18): 4207-4216.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.171017          https://dgjsxb.ces-transaction.com/CN/Y2018/V33/I18/4207