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Protection and Control of Modern Power Systems

Table 7 Performance comparison of controllers corresponding to a measurement noise variance of 0.1

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

0.021

1.32 × 10−4

2.5230

LQR

± 0.04

0.0126

13.2677

Proposed

−7 × 10− 3

1.57 × 10−6

1.1353

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