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Table 2 The energy of different decomposed vectors

From: A robust principal component analysis-based approach for detection of a stator inter-turn fault in induction motors

Scenario

\(E({D}_{1})\)

\(E({D}_{2})\)

\(E({D}_{3})\)

\(E({D}_{4})\)

\(E({D}_{5})\)

\(E({D}_{6})\)

Inter-turn fault

\(\mu =0.02\) to \(\mu =0.4\)

V

29.42

28.86

31.79

30.53

30.73

29.83

I

63.79

54.56

94.86

71.63

24.64

54.91

\({R}_{f}\)= 0 Ω to \({R}_{f}\) = 2000 Ω

V

29.73

28.52

30.85

29.43

30.02

29.84

I

52.85

52.12

93.94

67.08

23.76

55.78

\(THD\)= 0.2% to \(THD\) = 10.2%

V

29.73

28.43

30.91

28.83

29.84

28.31

I

51.76

48.97

91.43

68.52

18.92

48.63

SNR = 60 db to SNR = 30 db

V

31.44

30.05

32.33

31.47

31.45

30.92

I

67.73

48.65

93.64

72.58

28.73

55.83

Voltage quality problems

Voltage sag 10% to 35%

V

61.52

54.51

95.97

82.85

28.43

58.71

I

56.42

51.12

86.51

43.04

33.94

34.95

Voltage swell 10% to 35%

V

62.84

58.43

96.81

84.43

36.79

59.46

I

53.86

48.97

89.56

47.76

32.79

33.52

Unbalanced voltage 2% to 5%

V

60.63

52.61

94.58

81.63

34.51

58.06

I

50.08

43.94

85.53

46.53

28.62

31.48

Capacitor switching with increase the power factor from 0.74 to 1

V

63.72

56.47

95.79

82.34

33.52

53.74

I

52.83

46.71

86.84

44.41

31.44

32.57

Parallel motor switching

V

62.74

53.27

94.51

82.47

33.92

57.95

I

52.63

46.97

88.47

44.15

37.82

34.57

Mechanical load 0.5 p.u to 1.8 p.u

V

11.24

12.47

12.87

10.98

11.07

11.43

I

25.35

24.68

26.87

25.41

23.47

24.35