混合动力动车组辅助变流器设计与研究
发布时间：2019-03-01 15:29
【摘要】：摘要：混合动力动车组项目是由北车长春轨道客车股份有限公司和北京交通大学合作开展的。其中辅助供电系统是其电气装备核心组成部分之一,其为混合动力动车组上除牵引传动系统之外的所有其他用电设备进行供电。辅助供电系统中辅助变流器又是一个必不可少的关键电气组成部分,它为列车的空调系统、通风机、照明、充电机以及冷却风机等交流负载提供稳定的三相380V50Hz电源,其运行的稳定与否,直接影响了列车上包括牵引系统在内的其他电气装置的正常运行。本文基于理论和工程的研究基础,设计了混合动力动车组的辅助变流器系统,包括了主电路设计和控制系统设计,并对其可行性进行了仿真和实验,最终验证了方案的可行性。 首先,本文对不同型号CRH动车组的辅助供电系统进行了比较分析。比较了这些辅助供电系统的特点,并着重分析了其辅助变流器的拓扑结构。通过研究以及根据实际项目需求,我们选择了适合混合动力动车组的辅助供电系统方案,并初步确定了辅助变流器的拓扑结构。 其次,根据已经确定的辅助变流器拓扑方案以及项目实际技术指标要求,完成了主电路拓扑的最终设计。然后通过计算及仿真验证,对主电路上的所有元器件进行选型,使其能够满足电压、电流、温度等条件。 完成了主电路的设计,接下来是对控制系统的设计。本文对双动力辅助变流器的控制策略进行了分析并进行了软件实现。整个系统采用数字控制技术,核心芯片采用TI公司生产的DSP TMS320F28335,调制策略采用SVPWM,中间通过PI进行双闭环控制,并在双闭环控制的基础上进行了前馈改进。另外,对控制系统的保护策略也进行了介绍,通过硬件和软件同时进行保护,保证了可靠性。最后,还对不平衡和非线性负载问题作了简要分析。 本文的最后一部分是仿真和实验部分。对之前的器件选型、控制策略方法等进行仿真验证,证明之前的设计是行之有效的。在仿真成功的基础上,再搭建实验平台,进行实验。经过实验验证,其结果与仿真结果及理论分析相吻合,验证了整套方案设计的可行性,实现了功能,同时为以后的工程应用和产品化提供了一定理论依据和前期实验基础。
[Abstract]:Abstract: hybrid EMU project was carried out by North car Changchun Railway bus Co., Ltd and Beijing Jiaotong University. The auxiliary power supply system is one of the core components of its electrical equipment. It supplies power to all the electric equipment except traction transmission system on the hybrid EMU. Auxiliary converter in auxiliary power supply system is an essential key electrical component. It provides stable three-phase 380V50Hz power supply for AC loads such as train air conditioning system, ventilator, lighting, charger and cooling fan, etc. The stability of the train directly affects the normal operation of other electrical devices, including traction system. Based on the theory and engineering research, this paper designs the auxiliary converter system of hybrid EMU, including the main circuit design and control system design, and carries on the simulation and the experiment to its feasibility, finally validates the feasibility of the scheme. Firstly, the auxiliary power supply system of different types of CRH EMU is compared and analyzed in this paper. The characteristics of these auxiliary power supply systems are compared, and the topology of the auxiliary converters is emphatically analyzed. Through the research and according to the actual project demand, we select the auxiliary power supply system scheme suitable for the hybrid EMU, and preliminarily determine the topology of the auxiliary converter. Secondly, the final design of the main circuit topology is completed according to the determined auxiliary converter topology scheme and the actual technical requirements of the project. Then all the components on the main circuit are selected by calculation and simulation, so that they can meet the conditions of voltage, current, temperature and so on. Completed the design of the main circuit, followed by the design of the control system. In this paper, the control strategy of dual-power-assisted converter is analyzed and realized by software. The whole system adopts the digital control technology, the core chip adopts the DSP TMS320F28335, modulation strategy produced by TI Company and adopts the SVPWM, intermediate to carry out the double closed loop control through the PI. Based on the double closed loop control, the feedforward improvement is carried out on the basis of the double closed loop control. In addition, the protection strategy of the control system is also introduced, and the reliability is guaranteed by simultaneously protecting the hardware and software. Finally, the unbalanced and nonlinear load problems are briefly analyzed. The last part of this paper is simulation and experiment. The previous device selection, control strategy and so on are simulated and verified, and the previous design is proved to be effective. On the basis of the successful simulation, the experiment platform is set up and the experiment is carried out. The experimental results are in good agreement with the simulation results and theoretical analysis. The feasibility of the whole scheme design is verified and the functions are realized. At the same time, the theoretical basis and the preliminary experimental basis are provided for the future engineering application and product production.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U266;TM46
本文编号：2432549
[Abstract]:Abstract: hybrid EMU project was carried out by North car Changchun Railway bus Co., Ltd and Beijing Jiaotong University. The auxiliary power supply system is one of the core components of its electrical equipment. It supplies power to all the electric equipment except traction transmission system on the hybrid EMU. Auxiliary converter in auxiliary power supply system is an essential key electrical component. It provides stable three-phase 380V50Hz power supply for AC loads such as train air conditioning system, ventilator, lighting, charger and cooling fan, etc. The stability of the train directly affects the normal operation of other electrical devices, including traction system. Based on the theory and engineering research, this paper designs the auxiliary converter system of hybrid EMU, including the main circuit design and control system design, and carries on the simulation and the experiment to its feasibility, finally validates the feasibility of the scheme. Firstly, the auxiliary power supply system of different types of CRH EMU is compared and analyzed in this paper. The characteristics of these auxiliary power supply systems are compared, and the topology of the auxiliary converters is emphatically analyzed. Through the research and according to the actual project demand, we select the auxiliary power supply system scheme suitable for the hybrid EMU, and preliminarily determine the topology of the auxiliary converter. Secondly, the final design of the main circuit topology is completed according to the determined auxiliary converter topology scheme and the actual technical requirements of the project. Then all the components on the main circuit are selected by calculation and simulation, so that they can meet the conditions of voltage, current, temperature and so on. Completed the design of the main circuit, followed by the design of the control system. In this paper, the control strategy of dual-power-assisted converter is analyzed and realized by software. The whole system adopts the digital control technology, the core chip adopts the DSP TMS320F28335, modulation strategy produced by TI Company and adopts the SVPWM, intermediate to carry out the double closed loop control through the PI. Based on the double closed loop control, the feedforward improvement is carried out on the basis of the double closed loop control. In addition, the protection strategy of the control system is also introduced, and the reliability is guaranteed by simultaneously protecting the hardware and software. Finally, the unbalanced and nonlinear load problems are briefly analyzed. The last part of this paper is simulation and experiment. The previous device selection, control strategy and so on are simulated and verified, and the previous design is proved to be effective. On the basis of the successful simulation, the experiment platform is set up and the experiment is carried out. The experimental results are in good agreement with the simulation results and theoretical analysis. The feasibility of the whole scheme design is verified and the functions are realized. At the same time, the theoretical basis and the preliminary experimental basis are provided for the future engineering application and product production.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U266;TM46
【参考文献】
相关期刊论文 前1条
1 王鑫;赵清良;;地铁车辆辅助逆变器的设计与仿真[J];机车电传动;2006年04期
，本文编号：2432549
本文链接：https://www.wllwen.com/kejilunwen/dianlilw/2432549.html
教材专著
