基于dq坐标系下车网系统小信号建模的电气化铁路低频振荡分析

The line-side converter, which can represent an ac-dc-ac drive electric vehicle when analyzing the low-frequency oscillation in electric railways, is modeled in dq frame with the proposed single-phase dq-decomposition method. With this model, an underdamped mechanism of the vehicle-grid interaction is confirmed. Besides, a low-frequency stability prediction approach is presented, based on the domi...