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Table 8 Performance of the interval estimates for the 6-bus system parameters in the presence of a single bad value (n = 28)

From: The computation of confidence intervals for the state parameters of power systems

Estimated parameters

True values

Average LCL

Average UCL

Coverage Prob (%)

θ 02

−3.70

−4.82

−3.26

97.12

θ 03

−4.30

−6.10

−4.12

81.56

θ 04

−4.20

−5.29

−4.10

89.56

θ 05

−5.30

−6.67

−5.23

80.71

θ 06

−5.90

−7.68

−5.11

60.67

V 01

241.50

238.86

245.72

98.12

V 02

241.50

238.22

244.54

98.54

V 03

246.10

242.57

249.26

99.10

V 04

227.60

224.04

231.18

98.07

V 05

226.70

223.06

230.11

96.23

V 06

231.00

227.23

234.36

97.44