Detection and classification of multiple power signal patterns with Volterra series and interval type-2 fuzzy logic system

Protection and Control of Modern Power Systems

Table 3 Classification results under SNR 30 db

Events	Sag	Swell	Harmonics	Transcient	Sag+Har	Swell+Har
Sag	50
Swell		48
Harmonics			48
Transcient				45
Sag+Har					43
Swell+Har						44
Classification efficiency in %	100	96	96	90	86	88
Classification error in %	0	4	4	10	14	12
Overall Efficiency	93