A new suitable feature selection and regression procedure for lithium-ion battery prognostics Online publication date: Fri, 07-Sep-2018
by Jaouher Ben Ali; Lofi Saidi
International Journal of Computer Applications in Technology (IJCAT), Vol. 58, No. 2, 2018
Abstract: The accurate prediction of lithium-ion battery Remaining Useful Life (RUL) is indispensable for safe and lifetime-optimised operation. Thereby, the monitoring of this vital component is very necessary for planning repair work and minimising unexpected electricity outage. However, the study and the investigation of internal battery parameters show several value changes within the battery lifetime and it is highly influenced by environmental and load conditions. Consequently, this paper presents a new prognostic method for online battery monitoring based on isometric feature mapping technique (ISOMAP) and incremental support vector regression (ISVR). ISOMAP is used to reduce some features extracted from lithium-ion batteries, with different health states, in both modes of charge and discharge, and ISVR is used to regress online the selected feature. Experimental results show that the proposed methodology provides a new suitable trend parameter for battery RUL prediction.
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