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针对电气化铁路牵引供电回路负载非线性和波动性大的问题,以高速客运专线列车用阻抗匹配平衡牵引变压器为研究对象,根据变压器的电压平衡方程式、绕组接线原理和对称分量法,并结合高速客运专列运行的具体工况,给出了平衡牵引变压器在不同工况下运行的对应控制策略,利用Matlab/Simulink建立了牵引负载联合动态仿真系统,模拟牵引列车在单车运行和双车运行工况下的运行特性,仿真验证了所提方法的正确性和可行性,实现了负载定性和定量的分析,以及阻抗匹配平衡牵引变压器稳定、经济的运行。
Aiming at the problem of non-linear load and fluctuating load of electrified railway traction power supply circuit, the impedance matching balanced traction transformer of high-speed passenger dedicated train is taken as the research object. According to the voltage balance equation of transformer, winding connection principle and symmetrical component method, The specific operating conditions of train operation are given. The corresponding control strategy of balancing traction transformer under different operating conditions is given. The dynamic simulation system of traction load is established by using Matlab / Simulink to simulate the operation of single- The simulation verifies the correctness and feasibility of the proposed method, and realizes the qualitative and quantitative analysis of loads and the stable and economical operation of impedance matching balanced traction transformers.