Table 6 Sensitivity analysis for turbine and governor time constant (ISE, ITSE (× 10^–6), IAE, ITAE (× 10^–3))

Nominal

–

–

6.422

9.192

9.113

4.262

11.52

18.11

16.62

6.439

23.37

32.06

12.97

6.877

T_g1

 + 25%

− 25%

 + 50%

− 50%

0.1

0.06

0. 12

0.04

7.311

5.845

8.576

5.472

10.26

8.646

12.02

8.327

8.856

9.669

8.999

9.892

4.236

4.380

4.465

4.429

13.18

10.46

15.97

9.863

20.25

16.88

24.71

16.38

16.48

16.85

17.05

17.11

6.565

6.485

7.061

6.552

27.75

20.42

33.94

18.67

38.84

28.17

55.34

26.48

14.36

13.51

12.23

14.18

7.544

6.839

12.78

7.113

T_g2

 + 25%

− 25%

 + 50%

− 50%

0.075

0.045

0.09

0.03

6.510

6.350

6.605

6.316

9.312

9.110

9.456

9.109

8.999

9.294

8.987

9.506

4.240

4.295

4.233

4.350

11.65

11.38

11.86

11.25

18.25

17.95

18.58

17.80

16.50

16.75

16.53

16.86

6.395

6.487

6.406

6.526

23.56

23.26

23.94

23.21

32.32

31.95

32.96

31.91

13.02

12.93

13.38

12.89

6.875

6.889

6.996

6.906

T_t1

 + 25%

− 25%

 + 50%

− 50%

0.5

0.3

0.6

0.2

7.961

5.334

9.742

4.935

11.11

7.988

13.45

7.722

9.568

9.321

10.29

9.582

4.507

4.194

4.820

4.225

14.62

9.536

18.53

8.284

22.66

15.61

28.86

13.92

17.81

16.27

19.76

15.45

6.990

6.281

7.854

6.014

30.23

17.82

38.07

13.86

41.61

25.11

53.28

20.98

13.35

13.92

17.98

15.28

7.459

6.778

8.802

7.020

T_t2

 + 25%

− 25%

 + 50%

− 50%

0.55

0.33

0.66

0.22

6.535

6.279

6.633

6.176

9.386

8.962

9.523

8.877

9.311

9.130

9.273

9.457

4.302

4.244

4.307

4.316

11.73

11.21

12.32

10.78

18.22

17.63

19.46

16.85

16.22

16.59

16.92

16.26

6.339

6.435

6.610

6.348

23.93

23.04

24.83

22.95

32.95

31.59

34.69

31.59

12.15

13.23

12.78

13.74

6.727

6.978

6.923

7.148