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Protection and Control of Modern Power Systems

Table 2 Performance comparison of controllers corresponding to a measurement noise variance of 0.005

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

Controller

Steady state error (p.u.)

Variance

Computational

time (s)

Integral

−0.007

3.49 × 10−7

2.56377

LQR

−3 × 10− 4

2.16 × 10− 8

14.9660

Proposed

− 4 × 10− 3

1.67 × 10− 6

1.70527

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