DC-DC部分采用定功率单环控制，双向PCS控制仿真，数据模型归一化，模态振动，信号处理中的旋转不变子空间法，阐述了负荷预测的应用研究,针对EMD方法的不足。- DC-DC power single-part set-loop control, Two-way PCS control simulation, Normalized data model, modal vibration, Signal Processing ESPRIT method, It describes the application of load forecasting, For lack of EMD.