Development of Flexible System for Demand and Supply Imbalance considering Battery Lifetime
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20239256
- Paper/Info type
- Other International Conferences
- Pages
- 1-7(Total 7 p)
- Date of publication
- Aug 2023
- Publisher
- JSAE & SAE
- Language
- English
- Event
- 2023 P, E&L
Detailed Information
| Category(E) | EV1 Advanced Battery Electric Vehicle Systems and Control |
|---|---|
| Author(E) | 1) Daiki Komatsu, 2) Kazuya Syojiki, 3) Hiroshi Mine, 4) Ko Takahashi, 5) Masahiro Aoki, 6) Shin Yamauchi |
| Affiliation(E) | 1) Hitachi, Ltd., 2) Hitachi, Ltd., 3) Hitachi, Ltd., 4) Hitachi, Ltd., 5) Hitachi, Ltd., 6) Hitachi, Ltd. |
| Abstract(E) | Renewable energy is expanding to achieve carbon neutral. However, the renewable energy become unstable electric power system. Battery systems such as electric vehicles and stationary battery systems are expected to stabilize electric power grid. The electric vehicles are expected especially because vehicles are electrified rapidly due to exhaust gas regulation. However, there are problems regarding battery degradation because number of charge/discharge cycles is increased as the battery systems provide flexibility for electric power grid. The battery systems may become impossible to maintain performance for original purpose such as mobility uses and BCP(Business Continuity Plan) uses due to battery degradation. We developed a flexible system for demand and supply imbalance considering battery lifetime. The system is consists of battery systems and other load facilities such as air conditioners and electric lights. The system decides preferable load facilities based on imbalance trend and flexible prices. The imbalance trend means a duration of the imbalance. If the imbalance continues for a long duration, it is impossible to provide flexibility continuously from battery systems with limited capacity. In that case, other load facilities such as air conditioners and electric light should provide flexibility. The flexible prices mean operation cost to provide flexibility. The system gets battery degradation information from battery systems. The system calculates the flexible prices of the battery systems reflected battery degradation information. By comparing the flexible prices and operation profit, it is possible to maximize operational profit. Therefore, it is possible to reduce unnecessary charge/discharge cycles by considering the imbalance trend and the flexible prices. The battery systems may achieve proper purposes. As a result, at our flexible system consisted of battery systems and air conditioner, we demonstrated our flexible system works as designed based on the imbalance trend and the flexible prices. |
