【作者】 谢舸；

【导师】 卢琴芬；

【作者基本信息】 浙江大学 ， 电机与电器， 2011， 硕士

【摘要】 高速列车作为我国铁道运输的一个重要的发展方向,对国家的发展以及社会的进步有着重大的意义。牵引传动系统是高速列车中一个重要的组成部分,因此论文对CRH2和CRH3型动车组的牵引传动系统进行了建模和仿真分析。论文先对CRH2和CRH3型动车组牵引变流器的电路结构以及各个环节功能进行介绍,然后对两种车型的牵引变流器控制策略进行详细的研究和阐述。其中CRH2型动车组牵引变流器采用三电平技术,中间直流环节无LC滤波电路,控制策略为转子磁场定向间接矢量控制；CRH3型动车组牵引变流器采用两电平技术,中间直流环节采用LC滤波电路,控制策略为直接转矩控制。在进行了对牵引变流器的理论分析之后,利用Matlab/Simulink平台对CRH2和CRH3型动车组牵引传动系统进行建模与仿真。通过对不同工况下列车牵引传动系统的仿真,可知道两种车型动车组的牵引传动系统在牵引、恒速和再生制动工况下均能稳定运行,并且能够在不同的工况之间平滑切换。通过对短时断电工况的仿真分析,可知道列车牵引变流器在不同时速下断电后的性能以及恢复供电后列车给牵引变流器所带来的冲击。论文最后介绍了Simulink模型向C/C++代码的转换,通过对动车组牵引传动系统仿真模型的代码转换及结果对比,验证了Simulink模型向C/C++代码的转换的可行性和正确性。更多还原

【Abstract】 As an important direction of railway transport development in our country, high-speed train has a great impact to the country development and the social progress. Traction driver system is an important part of high-speed train, therefore, this paper models and analyzes them of CRH2 and CRH3.Firstly, the circuits and the function of all links of the traction converter of CRH2 and CRH3 are introduced. Then the control strategies of these two different traction converters are derailed researched and explained. The traction converter of CRH2 adopts there-levels technology, which intermediate DC link doesn’t have LC filter circuit, and control strategy is indirect rotor magnetic field-oriented vector control; the traction converter of CRH3 adopts two-levels technology, which intermediate DC link has LC filter circuit, and control strategy is direct torque control.After the theoretical analysis of traction converter, the traction driver system of CRH2 and CRH3 are modeled and simulated by Matlab/Simulink. The simulation results of traction driver system of high-speed train at different states indicate that these both different traction driver systems can operate stably at traction, constant speed and braking states, and also switch smoothly between each other. The simulation results and analysis of traction driver system at temporary power-off state indicate the performances of traction converter in power-off condition at different speed, and the impact of traction converter causes by restoring power.Finally, the transforming method from Simulink model to C/C++codes is introduced. Comparing the simulation results and the transforming codes of the traction driver system, the transforming method from Simulink model to C/C++codes are validated.更多还原