Assessment of Transient Stability through Coherent Machine Identification by Using Least-Square Support Vector Machine

Table 3

Classification and ranking obtained by the supervised learning engine (LS-SVM).

		G1	G2	G3	G4	G5	G6	G7	G8	G9
Case I	RTI [12]	0.333	0.866	1.007	0.477	0.485	0.462	0.477	0.414	0.476
	TSI	0.749	1.393	1.505	0.969	0.98	0.948	0.969	0.879	0.968
	Rank	9	2	1	4	3	7	5	8	6
	Coherency group	3	1	1	2	2	2	2	2	2
	Stability status	0	1	1	0	0	0	0	0	0
Case II	RTI [12]	0.41	0.494	0.511	0.509	0.539	0.477	0.485	0.366	0.405
	TSI	0.873	0.815	0.903	1.012	1.05	0.967	0.978	0.802	0.864
	Rank	6	8	5	2	1	4	3	9	7
	Coherency group	2	2	2	1	1	2	2	2	2
	Stability status	0	0	0	1	1	0	0	0	0
Case III	RTI [12]	0.402	0.499	0.614	0.466	0.488	0.482	0.486	0.395	0.402
	TSI	0.86	0.969	1.096	0.954	0.984	0.976	0.981	0.85	0.86
	Rank	7	5	1	6	2	4	3	9	8
	Coherency group	2	2	1	2	2	2	2	2	2
	Stability status	0	0	1	0	0	0	0	0	0
Case IV	RTI [12]	0.396	0.341	0.365	0.518	0.529	0.466	0.469	0.334	0.414
	TSI	0.851	0.537	0.594	1.024	1.033	0.943	0.956	0.744	0.872
	Rank	6	9	8	2	1	4	3	7	5
	Coherency group	2	3	3	1	1	2	2	3	2
	Stability status	0	0	0	1	1	0	0	0	0
Case V	RTI [12]	0.273	0.366	0.392	0.39	0.418	0.393	0.395	0.418	1.131
	TSI	0.604	0.771	0.813	0.81	0.852	0.812	0.826	0.712	1.592
	Rank	9	7	4	6	2	5	3	8	1
	Coherency group	3	2	2	2	2	2	2	3	1
	Stability status	0	0	0	0	0	0	0	0	1
Case VI	RTI [12]	0.244	0.346	0.362	0.461	1.324	0.373	0.384	0.275	0.298
	TSI	0.365	0.734	0.752	0.625	1.709	0.697	0.682	0.562	0.618
	Rank	9	3	2	6	1	4	5	8	7
	Coherency group	3	3	2	3	1	3	3	3	3
	Stability status	0	0	0	0	1	0	0	0	0