Security Assessment of Coal Mine Power Grid Voltage Based on an Improved AHP-FCE

Table 4

Fuzzy membership evaluation matrix.

Index factor set	Index value	Fuzzy evaluation matrix
R1	0.7500	0.0300	0.2200	0.7500	0	0	0
	0.5160	0.1300	0.2300	0.3600	0.1600	0.0800	0.0400
	33.9260	0	0.1400	0.4700	0.2900	0.1000	0
	-10.0000	0	0.2600	0.4300	0.1100	0.1000	0.1000
	-48.4000	0	0.3400	0.2500	0.0100	0.2000	0.2000
R2	84.8210	0	0	0.3100	0.6900	0	0
	3.1700	0	0	0	0.4700	0.5300	0
	0	0	0	0	0	0	1.000
	0.2240	0	0.6600	0.3400	0	0	0
R3	0.1860	0.6500	0.3500	0	0	0	0
	1.3330	0	0	0	0.6600	0.3400	0
	1.1830	0	0	0.5300	0.4700	0	0
	1.1180	0	0	0	0	0.3100	0.6900
	0.2580	0	0	0	0	0.3900	0.6100