Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)

Table 3

Values of stability indices at 20% and 30% load increasing conditions.

Bus no.	20% loading				Bus no.	30% loading				Rank
	MVSI	AVSI	FVSI	VDI		MVSI	AVSI	FVSI	VDI
6	0.1725	0.6667	0.0397	0.068	6	0.1888	0.6981	0.0435	0.0229	10
19	1.0443	1.5421	0.0076	0.0092	19	1.1394	1.6006	0.0085	0.0129	5
27	0.7761	1.3653	0.0086	0.0121	27	0.8516	1.4224	0.0094	0.0007	6
35	0.4169	0.7801	0.0318	0.0219	35	0.54569	0.8107	0.0348	0.0177	9
108	0.5404	1.2440	0.0072	0.0019	108	0.5529	1.2794	0.0078	0.0023	7
162	10.2834	15.8954	0.0979	0.0344	162	11.3754	16.7280	0.1077	0.0886	1
194	0.2254	0.7871	0.0548	0.0046	194	0.2477	0.8229	0.0549	0.0056	8
202	2.0966	8.8160	0.1646	0.0536	202	2.2891	9.1527	0.1804	0.0573	2
207	1.5922	2.9726	0.1598	0.0084	207	1.7216	3.0666	0.1732	0.0161	4
209	1.8772	8.1416	0.0673	0.0571	209	2.0515	8.4638	0.0781	0.0612	3