| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC power supply system that stabilize a DC bus voltage which is connected to DC power supply units. <P>SOLUTION: The DC power supply system comprises: a distributed power supply unit; a DC bus having the distributed power supply unit connected to loads; a plurality of DC power supply units; a plurality of converters having the DC bus connected to the plurality of DC power supply units respectively; and a controller controlling the plurality of converters. The controller supplies power from one DC power supply unit to the DC bus by means of at least one converter and controls the system to supply power from the DC bus to another DC power supply units by means of the other at least one converter so as to keep the DC bus voltage to the predetermined voltage when a voltage supplied from the distributed power supply unit to the DC bus drops below a predetermined voltage. <P>COPYRIGHT: (C)2012,JPO&INPIT |
