| 摘要 |
A method for testing the condition of a backup power supply of an axis in a wind turbine, wherein the backup power supply has an associated voltage, the method comprising: electrically isolating the axis of the wind turbine from a grid power supply; discharging the backup power supply for a first period of time at a first predefined current; measuring a first value of the voltage; operating the axis using the backup power supply until the voltage reaches a predefined second value; discharging the backup power supply for a second period of time at a second predefined current; measuring a third value of the voltage; and calculating a parameter based on at least the first and third values, wherein the parameter is characteristic of the condition of the backup power supply. |
