| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interconnection inverter arrangement with reduced output current ripples. <P>SOLUTION: The interconnection inverter arrangement comprises a direct-current power source 1; and two DC-DC converters 4, 5 which are connected in parallel with the direct-current power source 1 and boost direct-current voltage from the direct-current power source 1 by the switching operation of switching elements. The DC-DC converters 4, 5 are so constituted that: their outputs are connected so that the output voltages are added, then connected to an inverter circuit 6 which converts direct currents into alternating currents, and connected from the inverter circuit 6 to a commercial power system 3 through a switching means 7. The DC-DC converter 4 comprises a first boosting unit 4a and a second boosting unit 4b, and the DC-DC converter 5 comprises a first boosting unit 5a and a second boosting unit 5b. Either or both of the first boosting unit 4a and the second boosting unit 4b and either or both of the first boosting unit 5a and the second boosting unit 5b are provided with an insulating transformer, thereby, insulating the input and the output of each DC-DC converter from each other. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
