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Protection and Control of Modern Power Systems

Table 1 Mean and variance of state variables estimated corresponding to a measurement noise variance of 0.005

From: Optimal load frequency control through combined state and control gain estimation for noisy measurements

K

State variable

Mean

Variance

[2.999, 1.000, − 80.002]

ΔPv

0.0634

4.0817 × 10−4

ΔPm

0.0635

4.2357 × 10−4

Δf

−0.0040

1.6709 × 10− 6

K1

2.9999

1.3138 × 10− 9

K2

1.0000

7.0250 × 10− 11

K3

− 80.0002

9.3576 × 10− 9

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