Skip to main content

Table 3 Estimates of mode shapes with uncertainty

From: Improvements for electromechanical oscillation mode estimation via subspace identification methods

Generator

Local mode 1

Local mode 2

Inter-area

Mag (p.u.)

Angle (rad)

Mag (p.u.)

Angle (rad)

Mag (p.u.)

Angle (rad)

G1

1.00 ± 0.06

−0.27 ± 0.03

0.161 ± 0.09

2.60 ± 0.18

1.00 ± 0.07

2.88 ± 0.11

G2

0.982 ± 0.06

2.87 ± 0.04

0.154 ± 0.07

0.39 ± 0.18

0.694 ± 0.10

−2.84 ± 0.10

G3

0.159 ± 0.07

0.50 ± 0.06

1.00 ± 0.08

2.90 ± 0.06

0.794 ± 0.07

0.31 ± 0.10

G4

0.137 ± 0.09

2.76 ± 0.12

0.984 ± 0.13

−0.23 ± 0.14

0.85 ± 0.08

−0.26 ± 0.19