蓄电池容量预估技术理论研究和试验

Research and testing of battery capacity prediction theory

采用变电站蓄电池容量预估算法预估的容量与通过核对性放电试验得出的蓄电池容量误差小于10%。该算法可以对蓄电池容量进行评估和判断,及时了解蓄电池的运行状况,避免变电站失电时,蓄电池容量不足造成保护拒动,扩大事故范围,同时也为技改工程提供决策依据。

In this paper,when the estimated capacity is compared with the battery capacity obtained through the verification discharge test,the error is less than10%.This algorithm can evaluate and judge battery capacity,and make the operator to understand the operation condition of the battery in time,avoid the protection device refusing action and expanding the scope of the accident when AC power failure and undercapacity of battery are occurred in the substation at the same time.The technology can also provide decision-making basis for technical renovation project.