基于改进HHT算法的电力系统低频振荡模态辨识研究
金涛,褚福亮,李威,刘奕路

Research on Power System Low Frequency Oscillation Modal Identification Based on Improved HHT Method
Tao Jin,Fuliang Chu,Wei Li,Yilu Liu
图3 改进前HHT 算法的信号包络线
Fig.3 Former HHT decomposed signal envelope curve