| 摘要 |
<p>A method and apparatus for controlling a plurality of parallel-connected backup power sources connected on the input side via a choke coil to an AC mains, in disconnectable fashion, and on the output side to a common load bus, the power supplied by each individual backup power source being variable. While some of the backup power sources are connected on the input side to the AC mains and others of the backup power sources are not connected on the input side to the AC mains, a phase angle between the AC mains and the load bus is determined in order to match the powers supplied by the individual back up power sources to one another, and the power supplied by each of the backup power sources which have not yet been reconnected to the AC mains is adjusted as a function of the phase angle.</p> |
