Lithium-ion battery's complicated dynamics can be described as simple equivalent circuit (Randles circuit) containing Warburg impedance, which can be expressed as the fractional calculus. In order to control or identify lithium-ion battery system described as fractional order system containing unknown variable parameters, online parameter estimate mechanism for the coefficients of transfer function containing fractional order (like s0.5) must be needed. In this paper, we designed the Kreisselmeier-type adaptive observer for the linear time-variable fractional order system. Then, we applied the proposed observer to the lithium-ion battery modeled by Randles circuit under semi-infinite linear diffusion, and confirm the effectiveness of our observer by numerical simulation.
|Title of host publication
|2015 54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
|Institute of Electrical and Electronics Engineers Inc.
|Number of pages
|Published - 2015 Sept 30
|54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015 - Hangzhou, China
Duration: 2015 Jul 28 → 2015 Jul 30
|54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
|15/7/28 → 15/7/30
- Adaptive Observer
- Battery Dynamics
- Fractional Calculus
- Non-integer Order System
ASJC Scopus subject areas
- Control and Systems Engineering