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浙江大学学报(工学版)
浙江大学学报(工学版)  2020, Vol. 54 Issue (3): 475-482    DOI: 10.3785/j.issn.1008-973X.2020.03.007
机械工程     
海洋浮标感应耦合电能传输系统频率分裂特性及最大功率点分析
付丛丛1(),李醒飞1,*(),杨少波1,李洪宇2,谭文斌3
1. 天津大学 精密测试技术及仪器国家重点实验室，天津 300072
2. 山东科技大学 机械电子工程学院，山东 青岛 266590
3. 青岛星酉智能科技有限公司，山东 青岛 266041
Frequency splitting characteristics and maximum power point analysis of ICPT system with ocean buoys
Cong-cong FU1(),Xing-fei LI1,*(),Shao-bo YANG1,Hong-yu LI2,Wen-bin TAN3
1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
2. School of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
3. Qingdao Xingyou Intelligent Technology Co. Ltd, Qingdao 266041, China
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摘要：

为探究感应耦合电能传输（ICPT）系统中的频率偏移是否会对系统的最大输出功率产生影响，综合考虑线圈谐振频率、耦合系数，通过建立互感模型对基于海洋浮标的ICPT系统的频率分裂现象进行分析，选择输出功率作为重点研究对象，推导出在ICPT系统中输出功率与耦合系数，工作频率之间的关系表达式. 通过数值分析研究耦合系数、工作频率对频率分裂影响的一般化关系，并通过实验验证其结论. 结果表明：对线圈之间的耦合系数进行匹配，可以避免系统发生频率分裂，且在固有谐振频率处输出功率和效率达到最大值；若系统耦合系数固定，通过调整工作频率，可以使系统传输性能达到最优.
关键词： 感应耦合电能传输（ICPT）系统;  谐振频率;  频率分裂;  输出功率;  传输效率    
Abstract:

The frequency splitting phenomenon of inductive coupled power transmission (ICPT) system based on ocean buoys was analyzed, aiming at the problem that the maximum output power of the ICPT system was affected by the inductive coupling frequency offset. The mutual inductance model of ICPT system was established. Considering the coil resonance frequency and the coupling coefficient, the output power was taken as the key research object. And the relation expression between the output power and the coupling coefficient, the operating frequency in the ICPT system was presented. Meanwhile, the generalized influence of coupling coefficients and operating frequency was studied by numerical analysis. It is concluded that matching the coupling coefficients between the coils can avoid frequency splitting; the power and efficiency reach the maximum at the resonant frequency. In addition, if the system coupling coefficient is fixed, the system transmission performance can be optimal by adjusting the. operating frequency.
Key words: inductively coupled power transmission (ICPT) system    resonant frequency    frequency splitting    output power    transmission efficiency
收稿日期: 2019-05-09 出版日期: 2020-03-05
CLC:  TM 72  
基金资助: 国家自然科学基金资助项目（61733012）；天津大学青岛海洋技术研究院自主创新创业资助项目（20190201-5）；青岛市海洋工程与技术智库联合基金资助项目（20190131-2）；山东省自然科学基金资助项目（ZR2017MEE072）
通讯作者: 李醒飞     E-mail: FuCongcong@tju.edu.cn;lixftju@sina.com
作者简介: 付丛丛（1995—），女，硕士生，从事感应耦合电能传输研究. orcid.org/0000-0002-4594-2654. E-mail： FuCongcong@tju.edu.cn
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引用本文:

付丛丛,李醒飞,杨少波,李洪宇,谭文斌. 海洋浮标感应耦合电能传输系统频率分裂特性及最大功率点分析[J]. 浙江大学学报(工学版), 2020, 54(3): 475-482.

Cong-cong FU,Xing-fei LI,Shao-bo YANG,Hong-yu LI,Wen-bin TAN. Frequency splitting characteristics and maximum power point analysis of ICPT system with ocean buoys. Journal of ZheJiang University (Engineering Science), 2020, 54(3): 475-482.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2020.03.007    或    http://www.zjujournals.com/eng/CN/Y2020/V54/I3/475

图 1  基于海洋浮标的感应耦合电能传输（ICPT）系统结构图
图 2  ICPT系统模型示意图
图 3  ICPT系统等效电路图
参数 数值 单位 参数 数值 单位
f0 24.8 kHz C1 330 nF
L1 124.5 μH C2 156 nF
L4 124.5 μH C3 330 nF
L2 15.0 μH R1 0.24 Ω
L5 124.5 μH R2 0.60 Ω
L3 124.5 μH R3 0.24 Ω
RL 50 Ω Vi 12 V
表 1  ICPT实验系统参数
图 4  不同水上耦合系数情况下功率随频率和水下耦合系数的变化关系
图 5  不同水下耦合系数情况下功率随频率和水上耦合系数的变化关系
图 6  不同频率下功率随水上、水下耦合系数的变化关系
图 7  ICPT实验系统
图 8  不同水上耦合系数情况下系统输出功率与频率的关系
图 9  不同水上耦合系数情况下系统效率与频率的关系
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