电工技术学报  2021, Vol. 36 Issue (22): 4637-4647    DOI: 10.19595/j.cnki.1000-6753.tces.201589
电工理论与新技术 |
基于单管电路的恒流恒压无线充电系统研究
王春芳1, 岳睿1, 李厚基1, 李聃2
1.青岛大学电气工程学院 青岛 266071;
2.青岛鲁渝能源科技有限公司 青岛 266071
Research on Constant-Current and Constant-Voltage Wireless Charging System Based on Single-Switch Circuit
Wang Chunfang1, Yue Rui1, Li Houji1, Li Dan2
1. College of Electrical Engineering Qingdao University Qingdao 266071 China;
2. Qingdao Lu Yu Energy Technology Co. Ltd Qingdao 266071 China
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摘要 针对目前单管逆变无线电能传输(IPT)系统无法通过开关频率的切换实现由恒流输出(CCO)到恒压输出(CVO)转换的问题。该文提出一种用于单管电路(SSC)的P-CLCL补偿网络。所提P-CLCL高阶恒流恒压补偿网络可使单管电路在开关频率为fCC时输出恒流,在开关频率为fCV时输出恒压,解耦了输出与负载的关系。该文还利用互感等效模型对系统进行建模,并分析该补偿网络在恒流输出及恒压输出时需要满足的电路参数条件;利用傅里叶分解详细给出一套适用于单管电路的等效不对称输入电压源波形的分析方法;在综合考虑零电压开通(ZVS)的实现、软开关裕度、开关管耐压大小的情况下,利用“Mathcad”画图的方法给出一套一次侧补偿电容的设计流程。最后,搭建一台25.2W的P-CLCL实验样机,通过仿真和样机的开闭环实验验证了理论分析的正确性。
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王春芳
岳睿
李厚基
李聃
关键词 恒流恒压输出单管电路软开关    
Abstract:The current inductive-power-transfer (IPT) system fails to realize the conversion from constant current output (CCO) mode to constant voltage output (CVO) mode by switching the operating frequency. This paper proposed a new kind of P-CLCL compensation network used in single-switch circuit (SSC). By changing the operating frequency from fCC to fCV, the proposed circuit can be changed from CCO mode to CVO mode, which decouples the relationship between the output and the load. The mutual inductance equivalent model is used to analyze the restrain conditions of compensation network parameters in CCO mode and CVO mode, respectively. An analysis method of equivalent asymmetric input voltage waveform suitable for SSC is given. In the case of the realization of zero voltage switching (ZVS), ZVS margin and voltage stress in switch, a design method of primary compensation capacitor based on “Mathcad” image is proposed. Finally, an experimental prototype with 1A charging current and 25.2V charging voltage is built to verify the analysis.
Key wordsConstant current    constant voltage output    single-switch circuit    soft switching   
收稿日期: 2020-12-04     
PACS: TM46  
基金资助:国家自然科学基金资助项目(51877113)
通讯作者: 岳 睿 男,1996年生,硕士研究生,研究方向为无线电能传输。E-mail:hyoutenn@163.com   
作者简介: 王春芳 男,1964年生,教授,研究方向为电能变换及其先进控制技术。E-mail:qduwcf@163.com
引用本文:   
王春芳, 岳睿, 李厚基, 李聃. 基于单管电路的恒流恒压无线充电系统研究[J]. 电工技术学报, 2021, 36(22): 4637-4647. Wang Chunfang, Yue Rui, Li Houji, Li Dan. Research on Constant-Current and Constant-Voltage Wireless Charging System Based on Single-Switch Circuit. Transactions of China Electrotechnical Society, 2021, 36(22): 4637-4647.
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