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1. 发明申请

WO2019077047A1 METHOD AND SYSTEM FOR TESTING A RECHARGEABLE BATTERY 审中-公开
公开(公告)号：WO2019077047A1
公开(公告)日：2019-04-25
申请号：PCT/EP2018/078566
申请日：2018-10-18
申请人： ELTEK AS
发明人： ANDERSEN, Håkon
IPC分类号： G01R31/3842 , G01R31/385
摘要： The present invention relates to a method of testing a rechargeable battery (4) connected to a DC bus (5) of a converter (11) of a power supply system (10) comprising a control system (12) for controlling power transfer between a power source (2), the rechargeable battery (4) and a load (3) connected to the DC bus (5). The method comprises the steps of - setting a test discharge current (I4d) for the rechargeable battery (4) to be used during the test and setting a test end voltage (Vend) for the rechargeable battery (4) to be used during the test; - at a first point in time (TO), starting a test run measuring a current (14) from the rechargeable battery (4) and a voltage (V4) over the rechargeable battery (4); - at a second point in time (Tend), when the measured battery voltage (V4) becomes equal to the test end voltage (Vend), terminating the test run; and - registering the time period elapsed between the first point in time (TO) and the second point in time (Tend) as a measure of the status of the rechargeable battery (4). During the test run, the method comprises the steps of: - bringing the converter (11) to deliver an output voltage (V11) which is lower than the battery voltage (V4), thereby causing the rechargeable battery (4) to supply power to the load (3); and - bringing the controller (11) to control at least one of the converter output voltage (VI 1) and the converter output current (111) so that the battery current (14) is kept within a predetermined range of the test discharge current (I4d).

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