| 摘要 |
PROBLEM TO BE SOLVED: To provide a loop power distribution system for effectively utilizing the power supplied from a distributed power supply group connected to a radial power distribution system. SOLUTION: To the consecution point where a switch is installed, which is usually open, between the branching power distribution lines 11, 12 of the radial power distribution system of the sub-station 1 for power distribution or between the radial power distribution lines of two sub-stations 1a, 1b for power distribution, both distribution lines are connected via voltage power converters 13, 14 formed of a voltage three-phase inverter, including a switch s of the three-phase bridge structure connected respectively to a three-phase AC linkage reactor L and to one end of each linkage reactor and a power distribution line loop controller 10, including a control means 15 for matching the voltages between both power distribution lines by controlling on and off the switch s based on the voltage and current of each distribution line and DC voltage and DC current of the voltage power converter, is provided and thereby the radial power distribution system is changed to the loop system. |
