电动汽车非接触充电系统用松耦合变压器设计与实现

发布时间：2018-04-19 11:30

本文选题：非接触充电系统 + 松耦合变压器设计　；参考：《哈尔滨工业大学》2014年硕士论文

【摘要】：随着能源和环境问题的日益突出，发展高效无污染的电动汽车，被认为是交通领域的有效解决方案之一。电动汽车非接触充电器具有频繁使用时无接触磨损，在潮湿的环境中使用更加安全，使用起来方便等优点，应用前景较好。松耦合变压器是其实现非接触功率传输的关键器件，对整个系统的功率传输性能、工作气隙大小、侧移性能影响巨大，因此，设计和实现松耦合变压器具有重要的理论和实际意义。本文基于松耦合变压器模型，研究了四种基本补偿拓扑特性，提出了一种松耦合变压器及补偿电路参数优化设计方法，最终设计了一款新型松耦合变压器。首先，从磁路分析出发，建立了松耦合变压器互感模型，并以此而得到漏感模型。分析了松耦合变压器四种基本补偿拓扑的特性，结合电动汽车非接触充电要求，选择SS补偿拓扑作为系统补偿拓扑，并且对SS补偿拓扑特性进行了实验验证。其次，，针对松耦合变压器及补偿电路设计变量较多的特点，提出了一种松耦合变压器匝数比、系统工作频率参数优化设计方法，并且以此方法设计了一个使用平面W-型松耦合变压器的3kW非接触充电系统，测试结果与理论设计结果相符。再次，分析了松耦合变压器对系统传输功率的影响，提出了松耦合变压器优化设计目标。以平面W-型松耦合变压器为基础优化设计，设计了一款新型松耦合变压器——骨架式平面W-型松耦合变压器。最后，对新型松耦合变压器性能进行了测试，测试结果表明新型松耦合变压器性能符合设计要求。
[Abstract]:With the increasingly prominent energy and environmental problems, the development of efficient and non-polluting electric vehicles is considered to be one of the effective solutions in the field of transportation.The non-contact charger of electric vehicle has many advantages, such as no contact wear when it is used frequently, it is more safe to use in wet environment, and it is convenient to use, so it has a good application prospect.The loosely coupled transformer is the key device to realize the non-contact power transmission. It has a great influence on the power transmission performance, the size of the working air gap and the lateral shift performance of the whole system.The design and implementation of loosely coupled transformers have important theoretical and practical significance.Based on the loosely coupled transformer model, four basic compensation topology characteristics are studied in this paper, and a method of optimizing the parameters of the loosely coupled transformer and compensation circuit is proposed. Finally, a new loosely coupled transformer is designed.Firstly, based on the magnetic circuit analysis, the mutual inductance model of loosely coupled transformer is established, and the leakage inductance model is obtained.The characteristics of four basic compensating topologies of loosely coupled transformers are analyzed. According to the non-contact charging requirements of electric vehicles, the SS compensation topology is selected as the compensation topology of the system, and the experimental results are given to verify the characteristics of SS compensation topologies.Secondly, according to the characteristics of loosely coupled transformer and compensation circuit design variables, a method of optimizing the turn ratio of loosely coupled transformer and the operating frequency parameters of the system is put forward.A 3kW non-contact charging system using planar W- type loosely coupled transformer is designed by this method. The test results are in agreement with the theoretical design results.Thirdly, the influence of loosely coupled transformers on transmission power is analyzed, and the optimal design goal of loosely coupled transformers is put forward.Based on the optimal design of plane W- type loose coupling transformer, a new type of loose coupling transformer-skeleton type plane W- type loose coupling transformer is designed.Finally, the performance of the new loosely coupled transformer is tested, and the test results show that the performance of the new loosely coupled transformer meets the design requirements.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U469.72;TM402

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