Critical System Cascading Collapse Assessment for Determining the Sensitive Transmission Lines and Severity of Total Loading Conditions

Table 5

Results of each initial line tripping for IEEE 14-bus system using the proposed method and fault chain theory.

Proposed method		Fault chain theory [11]
Initial line tripping	𝜇(𝑃𝐶𝑖)	Initial line tripping	Vulnerability index
4-5	0.9587	1-2	0.1838
2-3	0.6274	2–4	0.1838
2–4	0.5546	4–7	0.1134
1-2	0.5322	6–13	0.0644
9–14	0.5068	1–5	0.0570
9-10	0.5021	9–14	0.0550
4–9	0.4867	6–11	0.0515
2–5	0.4577	3-4	0.0478
7–9	0.4266	2-3	0.0447
7-8	0.3905	6–12	0.0344
1–5	0.3536	4-5	0.0275
10-11	0.3371	12-13	0.0275
4–7	0.3295	9-10	0.0206
3-4	0.3287	2–5	0.0172
12-13	0.3193	4–9	0.0172
6–11	0.3101	5-6	0.0172
6–12	0.2873	10-11	0.0172
6–13	0.2598	13-14	0.0172
5-6	0.2080	7-8	0.0129
13-14	0.1590	7–9	0.0103