| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 봄 (04/23 ~ 04/25, 제주ICC) |
| 권호 |
14권 1호, p.706 |
| 발표분야 |
에너지/환경 |
| 제목 |
Electrochemical and Thermal Modeling of Lithium-ion Polymer Battery System for State-of-Charge Estimation |
| 초록 |
Lithium-ion polymer batteries (LiPB) are extensively used in hybrid electric vehicles and consumer portable electronics. In order to operate these batteries more efficiently, accurate estimation of state-of-charge (SOC) is necessary. Electrochemical and thermal modeling of the battery is important for accurate estimation of SOC. An equivalent-circuit-based battery model which simulates charge and discharge behavior of the battery is proposed. The thermal model is derived from energy balance model. From these models, current-based SOC and voltage-based SOC is estimated. They are compensated for each other by PID control system with current-based criteria. By this controller system, final estimated SOC is calculated. The model parameters and the controller parameters are estimated by neural-network and adaptive filters. These models are validated by experimental data with 60% SOC and standard temperature environment. The result is that proposed model and control system are appropriate for estimation of SOC to various use of LiPB. |
| 저자 |
조성우, 정현석, 박찬샘, 한종훈
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| 소속 |
서울대 |
| 키워드 |
Lithium-ion polymer battery; LiPB; State-of-charge; Equivalent circuit model; PID controller
|
| E-Mail |
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| 원문파일 |
초록 보기 |
