Title :
Recursive Prony´s Method for Improving the Monitoring of Electrical Machines
Author :
Costa, F.F. ; de Almeida, L.A.L. ; Wegelin, F.A. ; da Costa, E.G.
Author_Institution :
Departamento de Engenharia Eletrica, Univ. Fed. de Campina Grande
Abstract :
Prony´s method has been proposed in order to improve the monitoring of electrical machines. The paper shows that the method is efficient to track frequency deviations. The proposed method is advantageous over the method proposed in (Costa et al., 2004) because the former does not rely on the previous knowledge of fundamental frequency. It has also been showed that the quantization can deeply affect the spectrum of the analyzed signals
Keywords :
electric machines; frequency estimation; least squares approximations; recursive estimation; signal processing; electrical machines monitoring; frequencies deviations tracking; quantization; recursive Prony method; Bars; Condition monitoring; Digital filters; Fast Fourier transforms; Frequency estimation; Induction machines; Induction motors; Industrial plants; Linear systems; Stators; Condition monitoring; induction motor; motor current signature analysis; prony method;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-8879-8
DOI :
10.1109/IMTC.2005.1604401
