基于Gauss-Seidel法的城市轨道交通直流牵引供电系统稳态短路计算方法
许嘉轩
Steady State Short-circuit Calculation of DC Traction Power Supply System Based on Gauss-Seidel Iteration
XU Jiaxuan
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作者信息:轨道交通工程信息化国家重点实验室(中铁一院)，710043，西安
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Affiliation:State Key Laboratory of Rail Transit Engineering Information (FSDI), 710043, Xi′an, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.07.029
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中图分类号/CLCN:U231.8
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栏目/Col:研究报告
摘要:
城市轨道交通直流牵引供电系统短路电流难以精确求解。基于多折线整流机组外部特性曲线，对24脉波整流机组等效模型进行改进。考虑全线牵引所以及过渡电阻，构建等值电路模型，并建立其网孔电流方程。为得到各牵引所整流机组的工作区间和稳态短路电流，提出一种基于GaussSeidel迭代法的求解算法，并采用MFC程序实现。最后选取西安地铁3号线部分区间为算例，计算出稳态短路电流，验证了算法的有效性。
Abstracts:
It is difficult to calculate accurately the short-circuit of DC power supply system in urban rail trains. Based on the external characteristic curve of multiple polyline rectifier unit, the 24 pulse rectifier equivalent model is improved. Then, an equivalent circuit model is built and the mesh current equation is formulated considering all of the rectifiers and transition resistance. In order to get the working range and steady short-circuit current of rectifier unit at each traction substation, the algorithm based on Gauss-Seidel iteration is proposed and implemented by MFC program. Finally, some sections on Xi′an Metro Line 3 are taken as the example, the steady state short-circuit current is calculated, and the validity of the algorithm is verified.
引文 / Ref:
许嘉轩.基于Gauss-Seidel法的城市轨道交通直流牵引供电系统稳态短路计算方法[J].城市轨道交通研究，2020，23（7）：138.
XU Jiaxuan.Steady State Short-circuit Calculation of DC Traction Power Supply System Based on Gauss-Seidel Iteration[J].Urban mass transit，2020，23（7）：138.
XU Jiaxuan.Steady State Short-circuit Calculation of DC Traction Power Supply System Based on Gauss-Seidel Iteration[J].Urban mass transit，2020，23（7）：138.
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