This thesis proposes an enhanced ampere-hour counting method based on the depth-of-discharge (DOD) to estimate the state-of-charge (SOC) and state-of-health (SOH) for lead-acid batteries. Not only the losses at different discharging currents, but also the releasable capacity at the exhausted state caused by the larger discharging current are considered and compensated. Furthermore, the SOH is revaluated at the exhausted state by the maximum releasable capacity, consequently leading to more accurate SOC estimation. Through the experiments that emulate practical operations, the experimental results reveal that the maximum error is less than 6 %.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0812108-225424 |
| Date | 12 August 2008 |
| Creators | Huang, Yao-Feng |
| Contributors | Hau Chen Yen, Chin-Sien Moo, Tsorng-Juu Liang, Yao-Ching Hsieh, Jiann-Fuh Chen |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812108-225424 |
| Rights | not_available, Copyright information available at source archive |
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