| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely rapidly cut off a current of a linked switch 3 using a semiconductor switch or a mechanical switch not having self-arc suppressing capability at a power system fault time in a system linkage power converter connected to a system power source and a load 2 via the switch 3 and having a DC power source 5 connected to the load 2 side of the switch 3 via a power converter 4 to linkage operate the power system 1 and the power source 5. <P>SOLUTION: The system linked power converter comprises: a switch current command forming means 19 for controlling to feed back the switch current of the linked switch 3; and a switch current control circuit 18. The output current command of the power converter 5 is calculated so that the command for expediting the cut-off of the switch current at the system voltage fault time and the output current command of the power converter 4 is calculated so as to follow to the command, and the converter 4 is controlled. <P>COPYRIGHT: (C)2004,JPO |
