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一种ICPT系统松耦合线圈尺寸匹配的设计方法
A Design Method on Dimension Matching of Loosely Coupled Trans-former Coil in the System of ICPT
投稿时间:2017-07-20  修订日期:2017-09-01
DOI:
中文关键词:  单管逆变  感应耦合电能传输  松耦合线圈  电流密度  有限元仿真
英文关键词:the single switch inverter  Inductive Coupled Power Transfer  loosely coupled coils  current density  the finite element simulation
基金项目:
作者单位E-mail
李政泰 青岛大学 lizhengtai0921@gmail.com 
王春芳 青岛大学 qduwcf@163.com 
李聃 青岛鲁渝能源科技有限公司 lidan@wireless-power.com.cn 
摘要点击次数: 134
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中文摘要:
      传统ICPT系统中,松耦合变压器的发射线圈(Tx)尺寸与接受线圈(Rx)尺寸的最优匹配参数的求取,一般通过系统建模来推出Tx和Rx间的互感值,并辅以大量实验来获得,既缺少理论依据又浪费人力物力。针对这一问题,本文提出了一种通过仿真、观察Rx中电流密度变化规律来获得Tx和Rx尺寸最优匹配参数的设计方法。首先求取单管逆变ICPT系统之原边并联副边并联(PP)结构下的系统去耦等效电路模型,据此推导出Rx上的电流密度与互感(M)、系统传输功率及效率的关系;据此利用有限元仿真软件对Rx线圈电流密度随Tx线圈内外半径变化的规律进行了仿真,对Rx线圈电流密度及磁耦合线圈互感值随Tx线圈内外径半径变化的规律进行了仿真,并对Rx电流密度与互感变化对应的规律进行了仿真。综合仿真结果确定了松耦合线圈最优尺寸下,Rx与Tx内外径比值,该参数与企业通过实验总结出的经验值相吻合。
英文摘要:
      In the traditional system of ICPT, to calculate the optimal matching parameters between the transmitting coils(Tx) and the receiving coils(Rx) of loosely coupled transformer coils, usually by system modeling to project the mutual inductance value between the Tx and the Rx and supplemented by a large number of experiments. It not only lack theoretical basis but also waste manpower and material resources in this way. Pointing to this problem, this paper proposes a design method, using by simulating and observing the change rules of current density, to obtian the optimal matching parameters between the Tx and the Rx. Firstly, the system decoupling equivalent circuit model, that primary and secondary coils are in parallel compensation(PP) structure of the single switch inverter ICPT system, is used to derive the relationship among the current density, mutual inductance (M), system transmission power and efficiency. According to the analyses above, based on the finite element simulation software, the Rx coil current density is simulated with the variation of the Tx coil inside and external radius. The Rx coil current density and the mutual inductance of the magnetic-coupled-coils are simulated with the variation of the Tx coil inside and external radius. Besides, the corresponding regularity between Rx current density and mutual inductance change is simulated. The simulation results show that the ratio of Rx to Tx in the optimal size of loosely coupled coils is consistent with the empirical values summed up by the enterprise experiments.
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