| Title | Linear parameter-varying model for a refuellable zinc-air battery |
|---|---|
| ID_Doc | 30026 |
| Authors | Lao-atiman, W; Olaru, S; Diop, S; Skogestad, S; Arpornwichanop, A; Cheacharoen, R; Kheawhom, S |
| Title | Linear parameter-varying model for a refuellable zinc-air battery |
| Year | 2020 |
| Published | Royal Society Open Science, 7.0, 12 |
| Abstract | Due to the increasing trend of using renewable energy, the development of an energy storage system (ESS) attracts great research interest. A zinc-air battery (ZAB) is a promising ESS due to its high capacity, low cost and high potential to support circular economy principles. However, despite ZABs' technological advancements, a generic dynamic model for a ZAB, which is a key component for effective battery management and monitoring, is still lacking. ZABs show nonlinear behaviour where the steady-state gain is strongly dependent on operating conditions. The present study aims to develop a dynamic model, being capable of predicting the nonlinear dynamic behaviour of a refuellable ZAB, using a linear parameter-varying (LPV) technique. The LPV model is constructed from a family of linear time-invariant models, where the discharge current level is used as a scheduling parameter. The developed LPV model is benchmarked against linear and nonlinear model counterparts. Herein, the LPV model performs remarkably well in capturing the nonlinear behaviour of a ZAB. It significantly outperforms the linear model. Overall, the LPV approach provides a systematic way to construct a robust dynamic model which well represents the nonlinear behaviour of a ZAB. |
| https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.201107 |
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