Title :
Influence of parameter initialization on battery life prediction for online applications
Author :
Yinjiao Xing ; Ma, Eden W. M. ; Tsui, Kai-Man ; Pecht, Michael
Author_Institution :
Centre for Prognostics & Syst. Health Manage. (PHMC), City Univ. of Hong Kong, Kowloon, China
Abstract :
Estimating remaining useful life (RUL) is a crucial part in a successful online monitoring system. Extrapolation of a degradation model based on particle filtering (PF) approach, which is implemented on state-space model, is a popular method to predict RUL. Taking into account the characteristics of state-space model, the initial setting of process and measurement noise has a great impact on the predicted result. This paper discusses the individual performance of two popular PFs, sequential importance resampling PF and auxiliary PF, when they come to different noise characteristics. Two groups of initial process and measurement noises were set to compare the predicted performance between these two PFs. The prediction of battery RUL was demonstrated in this paper as a case study. The comparative results were used for reference to other-related degradation components or system using PFs-based prediction.
Keywords :
battery management systems; estimation theory; extrapolation; importance sampling; particle filtering (numerical methods); remaining life assessment; state-space methods; PF approach; auxiliary PF; battery RUL; battery life prediction; degradation components; degradation model; degradation system; extrapolation; measurement noise; noise characteristics; online applications; online monitoring system; parameter initialization; particle filtering approach; remaining useful life estimation; sequential importance resampling PF; state-space model; Abstracts; Battery charge measurement; Battery management systems; Extrapolation; Instruments; Noise; Standards; Auxiliary; Particle Filtering; Prognostics; RUL; Sequential Importance Resampling;
Conference_Titel :
Electronic Packaging Technology and High Density Packaging (ICEPT-HDP), 2012 13th International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4673-1682-8
Electronic_ISBN :
978-1-4673-1680-4
DOI :
10.1109/ICEPT-HDP.2012.6474786