Online Monitoring and Early Warning of Subsynchronous Oscillation Using Levenberg–Marquardt and Backpropagation Algorithm Combined with Sensitivity Analysis and Principal Component Analysis

Table 2

The attenuation factor results in different proportionality coefficients.

Proportionality coefficient	Attenuation factor
0.1	−0.70
0.3	1.20
0.5	2.37
0.7	3.00
0.9	3.20