高速铁路牵引供电系统等值电路与短路计算

针对高速电气化铁道,考虑电力系统阻抗、牵引变压器阻抗、牵引网阻抗及自耦变压器漏抗等因素,提出了基于V,x接线变压器的AT牵引供电系统等值电路,并依此给出了短路电流计算公式,为电铁设计及现场配合计算提供理论基础。基于Matlab/Simulink和LabVIEW的仿真计算验证了模型的可行性,与实测数据的对比分析验证了模型的正确性。

Calculation of Equivalence Circuit and Short Circuit in Traction Power Supply System for High Speed Railway

For high-speed electrified railway, considering the power system impedance, traction transformer impedance, auto-transformer impedance and other factors, an AT traction power supply system equivalent circuit basing on V,x transformer and its short-circuit calculation formulas are proposed which provides theory basis in the design and field corporation of electrified railway.