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Table 4 Tuned parameters with loading, TG and TT conditions

From: Comparative performance analysis of hybrid differential evolution and pattern search technique for frequency control of the electric power system

Controller
parameters
Loading TG TT
 + 25% − 25%  + 25% − 25%  + 25% − 25%
KP1 − 1.9376 − 1.9330 − 1.9353 − 1.9359 − 1.9379 − 1.9348
KP2 0.5390 0.5407 0.5401 0.5402 0.5404 0.5387
KP3 − 1.2571 − 1.2587 − 1.2592 − 1.2596 − 1.2582 − 1.2593
KI1 − 1.9465 − 1.9453 − 1.9474 − 1.9472 − 1.9431 − 1.9432
KI2 − 1.7111 − 1.7121 − 1.7135 − 1.7131 − 1.7121 − 1.7124
KI3 − 1.0105 − 1.0103 − 1.0106 − 1.0106 − 1.0108 − 1.0102
KD1 − 1.5404 − 1.5396 − 1.5408 − 1.5405 − 1.5395 − 1.5398
KD2 − 0.0663 − 0.0688 − 0.0660 − 0.0660 − 0.0654 − 0.0650
KD3 − 0.3952 − 0.3967 − 0.3920 − 0.3911 − 0.3923 − 0.3935
λ1 0.3275 0.3260 0.3296 0.3297 0.3297 0.3292
λ2 0.8567 0.8535 0.8559 0.8547 0.8567 0.8542
λ3 0.4773 0.4723 0.4776 0.4783 0.4750 0.4725
μ1 0.2319 0.2329 0.2334 0.2328 0.2324 0.2337
μ2 0.0442 0.0459 0.0406 0.0417 0.0405 0.0459
μ3 0.2455 0.2424 0.2443 0.2440 0.2465 0.2445