A Novel Power System Reliability Predicting Model Based on PCA and RVM

Table 2

Principal component.

Number	Category	Component
		𝑍1	𝑍2	𝑍3	𝑍4	𝑍5
1	Overhead available coefficient of 220 kV	0.100 7	−0.606 6	−0.074 7	−0.774 2	−0.037 0
2	Overhead available coefficient of 110 kV	0.166 4	0.709 5	0.571 8	−0.068 7	0.326 8
3	Transformer available coefficient of 220 kV	−0.573 5	0.494 5	0.602 5	0.150 2	0.180 8
4	Transformer available coefficient of 110 kV	−0.886 7	−0.011 0	0.444 6	−0.088 3	−0.089 2
5	Circuit breaker available coefficient of 220 kV	−0.876 3	0.137 1	−0.437 6	0.139 8	−0.020 6
6	Circuit breaker available coefficient of 110 kV	0.125 5	0.760 8	−0.606 0	−0.080 0	−0.160 5
7	Capacity-load ratio of 220 kV	0.807 5	0.017 5	−0.332 3	0.331 2	0.303 7
8	Capacity-load ratio of 110 kV	0.871 4	0.370 4	−0.050 7	0.271 6	0.158 5
9	Supply radius of 220 kV	0.980 8	0.026 6	0.165 9	0.084 0	−0.040 2
10	Supply radius of 110 kV	−0.341 3	0.508 3	−0.554 2	0.200 5	0.504 2
11	Substation capacity of 220 kV supply load per unit	−0.612 8	0.521 2	−0.532 1	0.104 8	0.173 5
12	Substation capacity of 110 kV supply load per unit	0.323 5	0.763 6	0.149 8	0.374 7	−0.369 5
13	Rural power supply stability	−0.966 7	−0.170 4	0.016 7	−0.142 2	−0.007 6
14	City power supply stability	−0.978 6	−0.151 2	−0.019 2	−0.120 9	0.012 7
15	The loss of switch out limit electric power	0.024 4	0.620 0	−0.027 2	0.237 3	−0.746 1
16	Lightning days	−0.324 9	−0. 426 4	0.442 9	0.697 4	0.088 4
17	Rainstorm days	0.284 7	−0.839 5	−0.445 8	0.095 9	0.078 1
18	Storm days	0.340 6	−0.826 3	0.174 2	−0.190 1	−0.146 4
19	High temperature days	0.828 9	0.066 5	0.312 5	−0.413 3	0.186 0