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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li Xue Jiang Jiuchun Zhang Caiping Zhang Weige Sun Bingxiang |
| Copyright Year | 2014 |
| Description | Author affiliation: Nat. Active Distrib. Network Technol. Res. Center, Beijing Jiaotong Univ., Beijing, China (Li Xue; Jiang Jiuchun; Zhang Caiping; Zhang Weige; Sun Bingxiang) |
| Abstract | The accurate estimation of the state-of-charge (SOC) of battery is the basic premise for the effective energy management and the important guarantee for the safe and efficient operation in electric vehicles. To improve SOC estimation accuracy and robustness, the paper analyzes the effects of different initial SOC errors and parameters variation on SOC estimation accuracy and robustness with H-infinity observer. A model in Matlab/Simulink is established to make calculation process come true, which is based on a new battery with nominal capacity of 90Ah. The simulation and experiment al results indicate that the H-infinity observer based SOC estimation can converge to the true values quickly even if at the set maximum initial error and its steady error can be controlled within 2%. The effects of model parameters change resulted from battery degradation including SOC-OCV relationship, capacity and internal resistance on H-infinity observer are investigated. It is concluded that SOC estimation accuracy with H-infinity observer largely depends on the accurate of the curve of SOC-OCV (Open circuit voltage, OCV), which provide a foundation for battery management. |
| Sponsorship | IEEE Ind. Electron. Soc. |
| Starting Page | 1647 |
| Ending Page | 1653 |
| File Size | 596942 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781479923991 |
| ISSN | 21635145 |
| DOI | 10.1109/ISIE.2014.6864862 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-06-01 |
| Publisher Place | Turkey |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | System-on-chip Observers Batteries Estimation error Convergence Mathematical model H∞ observer electric vehicles lithium-ion battery SOC estimation |
| Content Type | Text |
| Resource Type | Article |
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