Title :
Using Newton-Raphson Method to Estimate the Condition of Aluminum Electrolytic Capacitors
Author :
Amaral, Acácio M R ; Cardoso, A. J Marques
Author_Institution :
Polytech. Inst. of Coimbra, Coimbra
Abstract :
The aim of this paper is to present an experimental off-line technique that can be used to estimate the condition of aluminum electrolytic capacitors. The aging of aluminum electrolytic capacitors is expressed by the increase of their equivalent series resistance (ESR) and the reduction of their capacitance. Thus, the proposed technique is based in the estimation of both ESR and capacitance values. To validate the theoretical equations some experimental and simulated results will be presented.
Keywords :
Newton-Raphson method; ageing; aluminium; electrolytic capacitors; Al - Interface; Newton-Raphson method; aluminum electrolytic capacitors; equivalent series resistance; off-line technique; Aging; Aluminum; Capacitance; Capacitors; Conductivity; Frequency; Newton method; Paramagnetic resonance; Temperature; Voltage;
Conference_Titel :
Industrial Electronics, 2007. ISIE 2007. IEEE International Symposium on
Conference_Location :
Vigo
Print_ISBN :
978-1-4244-0754-5
Electronic_ISBN :
978-1-4244-0755-2
DOI :
10.1109/ISIE.2007.4374704
