Table 8 Percentage error in estimating dominant modes at different levels of SNR for the 3-bus benchmark.

From: A kurtosis-ESPRIT algorithm for RealTime stability assessment in droop controlled microgrids

mp× 10− 4

SNR

System modes

Estimated modes

% Error Real

% Error Imag

Kurtosis measure

1.1

Noise-free

−7.593 ± 51.05i

−7.504 ± 51.16i

1.17

0.215

7.6248

40

−7.44 ± 51.893i

2.015

1.65

4.82

30

−7.97 ± 50.132i

4.96

1.79

3.886

25

−7.031 ± 48.063i

7.4

5.85

3.37

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