能量互补的混合动力摩托车用双向DC-DC变换器研制
发布时间：2018-10-15 08:31
【摘要】：随着大气质量的不断下滑,矿产资源的日渐枯竭,“节能”与“环保”已经成为全球关注的热点话题。摩托车作为人们常用的小型代步工具,也应该做出顺应时代潮流的改变,电动摩托车逐渐代替内燃机摩托车已经成为该行业发展的必然趋势。但是,与内燃机摩托车相比,当前的单能量源摩托车存在续航能力弱,电池循环寿命短等缺陷。为了解决这些问题,本论文研究了一种新型混合动力摩托车动力系统结构。该系统具有增加摩托车续航里程,保证摩托车在启动、爬坡时的加速度,以及延长电池实际使用寿命的优点。本文首先调研和分析了国内外电动摩托车及其电气架构,以及双向DC-DC变换器的研究现状。针对当前单能量源摩托车存在的问题,研究和选用具有能量互补特性的高能电池和高功率电池组成摩托车的混合动力系统。同时重点研究和设计了该系统中的关键部件——双向DC-DC变换器和能量管理策略。双向DC-DC变换器的主要功能是根据系统的不同工况来控制能量的传递方向。为了实现高效率的能量传递,论文中针对双向DC-DC变换器低压大电流的特点,引入了同步整流技术。论文基于摩托车不同的运行工况,分析了变换器相应的工作模式,并对其在不同模式下的工作原理进行了详细分析；建立了变换器在Boost/Buck模式下的小信号模型,并对两种模式下的控制器参数进行了设计；同时为了验证变换器设计的正确性,对变换器进行了Matlab/Simulink仿真。实验室开发了一台基于混合动力摩托车的1.5kW双向DC-DC变换器实验平台。针对变换器的不同工作模式,在实验室完成Boost/Buck稳态实验及动态变载实验的基础上,进行了实际车载实验。实验结果验证了混合动力系统设计的正确性及合理性。
[Abstract]:With the decline of atmospheric quality and the depletion of mineral resources, "energy saving" and "environmental protection" have become a hot topic of global concern. Motorcycles, as a commonly used small means of walking, should also make changes in line with the trend of the times, electric motorcycles have gradually replaced the internal combustion engine motorcycle has become the inevitable trend of the development of the industry. However, compared with internal combustion engine motorcycles, the current single energy source motorcycles have some shortcomings such as weak endurance and short battery cycle life. In order to solve these problems, a new hybrid motorcycle power system structure is studied in this paper. The system has the advantages of increasing the mileage of the motorcycle, ensuring the acceleration of the motorcycle during starting and climbing, and prolonging the actual service life of the battery. Firstly, this paper investigates and analyzes the research status of electric motorcycles and their electrical structures, as well as the bidirectional DC-DC converters at home and abroad. Aiming at the existing problems of single energy source motorcycle, the hybrid power system composed of high energy battery and high power battery with complementary energy characteristics is studied and selected. At the same time, the key components of the system, bidirectional DC-DC converter and energy management strategy, are studied and designed. The main function of the bidirectional DC-DC converter is to control the energy transfer direction according to the different working conditions of the system. In order to achieve high efficiency energy transfer, the synchronous rectifier technology is introduced in this paper according to the characteristics of low voltage and high current of bidirectional DC-DC converter. Based on the different operating conditions of motorcycle, this paper analyzes the corresponding working modes of the converter, and analyzes the working principle of the converter in different modes in detail, and establishes the small signal model of the converter in Boost/Buck mode. The controller parameters in two modes are designed, and the converter is simulated by Matlab/Simulink in order to verify the correctness of the converter design. An experimental platform of 1.5kW bidirectional DC-DC converter based on hybrid motorcycle is developed. According to the different working modes of the converter, the Boost/Buck steady state experiment and the dynamic load changing experiment are completed in the laboratory, and the actual vehicle experiment is carried out. The experimental results verify the correctness and rationality of the hybrid power system design.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U483;TM46
[Abstract]:With the decline of atmospheric quality and the depletion of mineral resources, "energy saving" and "environmental protection" have become a hot topic of global concern. Motorcycles, as a commonly used small means of walking, should also make changes in line with the trend of the times, electric motorcycles have gradually replaced the internal combustion engine motorcycle has become the inevitable trend of the development of the industry. However, compared with internal combustion engine motorcycles, the current single energy source motorcycles have some shortcomings such as weak endurance and short battery cycle life. In order to solve these problems, a new hybrid motorcycle power system structure is studied in this paper. The system has the advantages of increasing the mileage of the motorcycle, ensuring the acceleration of the motorcycle during starting and climbing, and prolonging the actual service life of the battery. Firstly, this paper investigates and analyzes the research status of electric motorcycles and their electrical structures, as well as the bidirectional DC-DC converters at home and abroad. Aiming at the existing problems of single energy source motorcycle, the hybrid power system composed of high energy battery and high power battery with complementary energy characteristics is studied and selected. At the same time, the key components of the system, bidirectional DC-DC converter and energy management strategy, are studied and designed. The main function of the bidirectional DC-DC converter is to control the energy transfer direction according to the different working conditions of the system. In order to achieve high efficiency energy transfer, the synchronous rectifier technology is introduced in this paper according to the characteristics of low voltage and high current of bidirectional DC-DC converter. Based on the different operating conditions of motorcycle, this paper analyzes the corresponding working modes of the converter, and analyzes the working principle of the converter in different modes in detail, and establishes the small signal model of the converter in Boost/Buck mode. The controller parameters in two modes are designed, and the converter is simulated by Matlab/Simulink in order to verify the correctness of the converter design. An experimental platform of 1.5kW bidirectional DC-DC converter based on hybrid motorcycle is developed. According to the different working modes of the converter, the Boost/Buck steady state experiment and the dynamic load changing experiment are completed in the laboratory, and the actual vehicle experiment is carried out. The experimental results verify the correctness and rationality of the hybrid power system design.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U483;TM46
【参考文献】
相关期刊论文 前3条
1 梁翠凤;张雷;;铅酸蓄电池的现状及其发展方向[J];广东化工;2006年02期
2 ;石墨烯基锂离子电容器成功用于电动自行车[J];摩托车技术;2015年02期
3 童亦斌;吴\，
本文编号：2271962
本文链接：https://www.wllwen.com/kejilunwen/dianlilw/2271962.html
