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1.中国科学院电力电子与电气驱动重点实验室(中国科学院电工研究所),北京市 100190
2.中国科学院大学,北京市 100049
杨继鑫(1995—),男,博士研究生,主要研究方向:轨道交通非接触供电技术及电力电子变换器控制。E-mail:jixiny@mail.iee.ac.cn
史黎明(1964—),男,通信作者,研究员,博士生导师,主要研究方向:特种电机和驱动控制、新型轨道交通牵引供电、大功率无线电能传输技术。E-mail:limings@mail.iee.ac.cn
殷正刚(1982—),男,博士,高级工程师,主要研究方向:非接触供电技术及大功率变流器控制技术。E-mail:yzhg@mail.iee.ac.cn
收稿:2023-07-12,
修回:2023-10-30,
网络出版:2024-01-23,
纸质出版:2024-03-10
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杨继鑫,史黎明,殷正刚等.感应电能传输系统多并联拾取模块电流和输出功率均衡方法[J].电力系统自动化,2024,48(5):120-127.
YANG Jixin,SHI Liming,YIN Zhenggang,et al.Current and Output Power Balancing Method for Multiple Parallel Pickup Modules in Inductive Power Transfer System[J].Automation of Electric Power Systems,2024,48(5):120-127.
杨继鑫,史黎明,殷正刚等.感应电能传输系统多并联拾取模块电流和输出功率均衡方法[J].电力系统自动化,2024,48(5):120-127. DOI: 10.7500/AEPS20230712005.
YANG Jixin,SHI Liming,YIN Zhenggang,et al.Current and Output Power Balancing Method for Multiple Parallel Pickup Modules in Inductive Power Transfer System[J].Automation of Electric Power Systems,2024,48(5):120-127. DOI: 10.7500/AEPS20230712005.
大功率感应电能传输系统通常采用多并联拾取模块结构。然而,多并联拾取模块参数不一致,会导致各个拾取模块的电流和输出功率不均衡,从而降低系统效率,严重时会因模块过流而造成系统故障。为解决该问题,文中提出一种基于并联拾取模块补偿电容器的多并联拾取模块电流和输出功率均衡方法。首先,介绍了传统感应电能传输系统与所提出的感应电能传输系统拓扑的特性。然后,分别分析了互感、拾取线圈自感及内阻对电流分布和系统效率的影响。最后,通过4个并联拾取模块的感应电能传输系统实验平台验证了所提方法的有效性。实验结果表明,采用所提方法时多并联拾取模块的电流和输出功率基本一致,并且相比传统感应电能传输系统,系统效率最高提升了2.21%。
The structure of multiple parallel pickup modules is often applied in the high-power inductive power transfer (IPT) system. However
the inconsistent parameters of multiple parallel pickup modules may result in unbalanced current and output power between pickup modules
which reduces the system efficiency and may cause the system failure due to the module overcurrent in severe cases. To solve this problem
this paper proposes a method to balance the current and the output power of multiple parallel pickup modules by connecting the compensation capacitors of all pickup modules in parallel. First
the characteristics of the topologies of the conventional IPT system and the proposed IPT system are analyzed. Then
the influence of the mutual inductance
the self-inductance and the inner resistance of the pickup coil on current distribution and system efficiency is analyzed. Finally
the effectiveness of the proposed method is verified by an experimental platform of the IPT system with four parallel pickup modules. The experimental results show that the current and the output power of multiple parallel pickup modules are almost equal when adopting the proposed method
and the system efficiency is improved by 2.21% compared with the conventional IPT system.
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