A Novel Method for Diagnosis of Broken Bars Based on Optimum Resolution of Prescient Direction Algorithm

Table 2

Parameter estimation results with the faulty machine at different power supply frequencies using ORPD algorithm.

Power frequency (Hz)	Speed (r/min)	Characteristic component	Theoretical value	Frequency estimation	Amplitude estimation
20	584		18.92	18.92	0.036
			21.08	21.10	0.029
32	935		30.33	30.33	0.513
			33.67	33.68	0.462
40	1184		38.93	38.82	0.031
			41.07	41.09	0.027
45	1132		43.83	43.90	0.044
			46.17	46.11	0.039