基于Rosenbrock算法的城轨双向PWM变流器仿真  

Simulation of urban rail bidirectional PWM converter based on Rosenbrock algorithm

作　　者：王阔 沙栋磊 金泰木 陈雯 林飞[1] WANG Kuo;SHA Donglei;JIN Taimu;CHEN Wen;LIN Fei(School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China;National Innovation Center of High Speed Train,Qingdao 266000,China)

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]国家高速列车技术创新中心,山东青岛266000

出　　处：《电气应用》2021年第10期18-26,共9页Electrotechnical Application

基　　金：国家高速列车技术创新中心资助。

摘　　要：由于二极管的单向导电特性,阻碍了列车再生制动能量的回馈。近年来,采用四象限变流器的城轨双向变电站在国内外得到广泛关注。对PWM变流器进行建模和计算是研究双向变电站的基础环节。首先分析了PWM变流器的工作原理和控制策略,以三相交流电流和直流侧电压为状态变量,得到了基于开关函数的PWM变流器的微分方程;然后介绍了Rosenbrock算法,并给出了算法流程图;最后编写了PWM变流器的仿真程序,调用Rosenbrock算法进行求解,结果与Simulink仿真结果一致,表明所开发的仿真程序代替Simulink仿真具有可行性。The unidirectional conductivity of the diode hinders the feedback of train regenerative braking energy.In recent years, bidirectional substations with four-quadrant converters have received wide attention at home and abroad. The modeling and calculation of PWM converter is the basic link in the research of bidirectional substation.The working principle and the control strategy of PWM converter are analyzed, and the differential equation of PWM converter based on switching function is obtained by taking three-phase AC current and DC side voltage as state variables. Then the Rosenbrock algorithm is introduced and the algorithm flow chart is given. The simulation program of PWM converter is compiled, and the Rosenbrock algorithm is used to solve the problem. The results are consistent with the Simulink simulation results, which shows that the simulation program developed in this paper is feasible to replace Simulink simulation.

关 键 词：城市轨道交通 双向变电站 PWM变流器 数学模型 Rosenbrock算法 

分 类 号：U239.5[交通运输工程—道路与铁道工程] TM46[电气工程—电器]