Conference item
Augmented state observer for simultaneous estimation of charge state and crossover in self-discharging disproportionation redox flow batteries
- Abstract:
- This paper presents an observer design for the simultaneous estimation of charge state and crossover flux in disproportionation redox flow batteries, which exhibits exponential estimation error convergence to a bounded residual set. The crossover flux of vanadium through the porous separator is considered as an unknown function of the battery states, model-approximated as the output of a persistently excited linear system. This parametric model and the simple isothermal lumped parameter model of the battery are combined to form an augmented space state representation suitable for the observer design, which is carried out via Lyapunov stability theory including the error-uncertainty involved in the approximation of the crossover flux. The observer gain is calculated by solving a polytopic linear matrix inequality problem via convex optimization. The performance of this design is evaluated with a laboratory flow battery prototype undergoing self-discharge.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 1.1MB, Terms of use)
-
- Publisher copy:
- 10.1109/ccta.2019.8920467
Authors
- Publisher:
- Institute of Electrical and Electronics Engineers
- Publication date:
- 2019-12-05
- Acceptance date:
- 2019-08-18
- Event title:
- 2019 IEEE Conference on Control Technology and Applications (CCTA)
- Event location:
- Hong Kong, China
- Event website:
- https://www.aconf.org/conf_158085.html
- Event start date:
- 2019-08-19
- Event end date:
- 2019-08-21
- DOI:
- EISBN:
- 9781728127675
- ISBN:
- 9781728127682
- Language:
-
English
- Keywords:
- Pubs id:
-
1083075
- Local pid:
-
pubs:1083075
- Deposit date:
-
2021-05-11
Terms of use
- Copyright holder:
- Institute of Electrical and Electronics Engineers
- Copyright date:
- 2019
- Rights statement:
- © 2019 IEEE.
- Notes:
- This paper was presented at the 2019 IEEE Conference on Control Technology and Applications (CCTA), Hong Kong, China, 19-21 August 2019. This is the accepted manuscript version of the paper. The final version is available online from the Institute of Electrical and Electronics Engineers at: https://doi.org/10.1109/CCTA.2019.8920467
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