一种电池系统、电池系统的均衡控制方法及发电系统
By employing a combined control method of charge balancing and differential pressure balancing in the battery system, the problem of cell inconsistency is solved, and the timing of balancing activation is improved, along with the safety and range of the battery system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUNGROW ENERGY STORAGE TECH CO LTD
- Filing Date
- 2022-02-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing battery systems, inconsistencies in battery cells lead to reduced battery life, overcharging or over-discharging of some cells, and potential damage. Furthermore, the difficulty in accurately obtaining the charge level of each cell results in fewer opportunities for balanced operation.
Two equalization control methods are adopted: the first equalization control is power equalization, which is achieved by controlling the power difference and temperature range of each cell; the second equalization control is voltage difference equalization, which is achieved by controlling the voltage difference and temperature range of the cells. First, it is determined whether the first equalization control condition is met. If not, it is then determined whether the second equalization control condition is met, so as to increase the chance of equalization activation.
It improves the balancing accuracy and effectiveness of the battery system, reduces the risk of overcharging or over-discharging of battery cells, and enhances the safety and range of the battery system.
Smart Images
Figure CN114513030B_ABST