公开(公告)号：US5457377A

公开(公告)日：1995-10-10

申请号：US122678

申请日：1993-09-17

申请人： Lennart Jonsson

发明人： Lennart Jonsson

IPC分类号： G01R31/36 ,  H02J9/06 ,  H01M10/48

CPC分类号： H02J9/062 ,  G01R31/3662 ,  G01R31/3631 ,  Y10S320/21

摘要： A method of monitoring the internal impedance of an accumulator battery in an uninterruptible power supply, and a UPS. In accordance with the invention, during the discharge of the battery to the load, the load current induced by the load and passing through the battery is measured or calculated, and the corresponding AC voltage component obtained on the battery voltage is measured, the value for the internal impedance of the battery being calculated from these values. The obtained impedance value is compared to a predetermined reference value to determine the condition of the battery.

摘要翻译： 监控不间断电源和UPS中的蓄电池的内部阻抗的方法。 根据本发明，在将电池放电到负载期间，测量或计算由负载引起的并通过电池的负载电流，并且测量根据电池电压获得的相应AC电压分量，其值 根据这些值计算电池的内部阻抗。 将获得的阻抗值与预定的参考值进行比较，以确定电池的状态。